75000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 75010 - Statement - Interim condensed consolidated statement of operations link:presentationLink link:calculationLink link:definitionLink 75020 - Disclosure - Leases - Summary of Maturity Analysis of Lease Liabilities (Details) 2 link:presentationLink link:calculationLink link:definitionLink 75030 - Statement - Interim condensed consolidated statement of operations (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 75040 - Statement - Interim condensed consolidated statement of comprehensive loss link:presentationLink link:calculationLink link:definitionLink 75050 - Statement - Interim condensed consolidated statement of comprehensive loss 2 link:presentationLink link:calculationLink link:definitionLink 75060 - Statement - Interim condensed consolidated statement of financial position link:presentationLink link:calculationLink link:definitionLink 75070 - Statement - Interim condensed consolidated statement of changes in equity link:presentationLink link:calculationLink link:definitionLink 75080 - Statement - Interim condensed consolidated statement of operations 2 link:presentationLink link:calculationLink link:definitionLink 75090 - Statement - Interim condensed consolidated statement of cash flows link:presentationLink link:calculationLink link:definitionLink 75100 - Disclosure - Cybersecurity Risk Management, Strategy and Governance link:presentationLink link:calculationLink link:definitionLink 995420 - Disclosure - Corporate information link:presentationLink link:calculationLink link:definitionLink 995430 - Disclosure - Summary of accounting policies link:presentationLink link:calculationLink link:definitionLink 995440 - Disclosure - Financial risk management link:presentationLink link:calculationLink link:definitionLink 995450 - Disclosure - Significant accounting judgments, estimates and assessments link:presentationLink link:calculationLink link:definitionLink 995460 - Disclosure - Seasonality link:presentationLink link:calculationLink link:definitionLink 995470 - Disclosure - Segment information link:presentationLink link:calculationLink link:definitionLink 995480 - Disclosure - Depreciation Amortization and Impairment by Per Function link:presentationLink link:calculationLink link:definitionLink 995490 - Disclosure - Employee and Personnel Costs link:presentationLink link:calculationLink link:definitionLink 995500 - Disclosure - Share-based compensation link:presentationLink link:calculationLink link:definitionLink 995510 - Disclosure - Other Operating Income and (Expenses), Net link:presentationLink link:calculationLink link:definitionLink 995520 - Disclosure - Finance Income and Expenses link:presentationLink link:calculationLink link:definitionLink 995530 - Disclosure - Net Exchange Rate Differences link:presentationLink link:calculationLink link:definitionLink 995540 - Disclosure - Income tax link:presentationLink link:calculationLink link:definitionLink 995550 - Disclosure - Investments in subsidiaries link:presentationLink link:calculationLink link:definitionLink 995560 - Disclosure - Intangible assets link:presentationLink link:calculationLink link:definitionLink 995570 - Disclosure - Property, plant and equipment link:presentationLink link:calculationLink link:definitionLink 995580 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 995590 - Disclosure - Other non-current receivables link:presentationLink link:calculationLink link:definitionLink 995600 - Disclosure - Fair value of financial instruments link:presentationLink link:calculationLink link:definitionLink 995610 - Disclosure - Inventories link:presentationLink link:calculationLink link:definitionLink 995620 - Disclosure - Trade receivables link:presentationLink link:calculationLink link:definitionLink 995630 - Disclosure - Other current receivables link:presentationLink link:calculationLink link:definitionLink 995640 - Disclosure - Prepaid expenses link:presentationLink link:calculationLink link:definitionLink 995650 - Disclosure - Cash and cash equivalents link:presentationLink link:calculationLink link:definitionLink 995660 - Disclosure - Equity link:presentationLink link:calculationLink link:definitionLink 995670 - Disclosure - Liabilities to Credit Institutions link:presentationLink link:calculationLink link:definitionLink 995680 - Disclosure - Other non-current liabilities link:presentationLink link:calculationLink link:definitionLink 995690 - Disclosure - Provisions link:presentationLink link:calculationLink link:definitionLink 995700 - Disclosure - Convertible Notes link:presentationLink link:calculationLink link:definitionLink 995710 - Disclosure - Shareholder loans link:presentationLink link:calculationLink link:definitionLink 995720 - Disclosure - Other current liabilities link:presentationLink link:calculationLink link:definitionLink 995730 - Disclosure - Accrued expenses link:presentationLink link:calculationLink link:definitionLink 995740 - Disclosure - Related party disclosures link:presentationLink link:calculationLink link:definitionLink 995750 - Disclosure - Changes in liabilities attributable to financing activities link:presentationLink link:calculationLink link:definitionLink 995760 - Disclosure - Loss per share link:presentationLink link:calculationLink link:definitionLink 995770 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 995780 - Disclosure - Non-current Assets Held for Sale link:presentationLink link:calculationLink link:definitionLink 995790 - Disclosure - Events after the end of the reporting period link:presentationLink link:calculationLink link:definitionLink 995800 - Disclosure - Summary of accounting policies (Policies) link:presentationLink link:calculationLink link:definitionLink 995810 - Disclosure - Summary of accounting policies (Tables) link:presentationLink link:calculationLink link:definitionLink 995820 - Disclosure - Financial risk management (Tables) link:presentationLink link:calculationLink link:definitionLink 995830 - Disclosure - Segment information (Tables) link:presentationLink link:calculationLink link:definitionLink 995840 - Disclosure - Depreciation Amortization and Impairment by Per Function (Tables) link:presentationLink link:calculationLink link:definitionLink 995850 - Disclosure - Employee and Personnel Costs (Tables) link:presentationLink link:calculationLink link:definitionLink 995860 - Disclosure - Share-based compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 995870 - Disclosure - Other Operating Income and (Expenses), Net (Tables) link:presentationLink link:calculationLink link:definitionLink 995880 - Disclosure - Finance income and expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 995890 - Disclosure - Net Exchange Rate Differences (Tables) link:presentationLink link:calculationLink link:definitionLink 995900 - Disclosure - Income tax (Tables) link:presentationLink link:calculationLink link:definitionLink 995910 - Disclosure - Investments in subsidiaries (Tables) link:presentationLink link:calculationLink link:definitionLink 995920 - Disclosure - Intangible assets (Tables) link:presentationLink link:calculationLink link:definitionLink 995930 - Disclosure - Property, plant and equipment (Tables) link:presentationLink link:calculationLink link:definitionLink 995940 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 995950 - Disclosure - Other non-current receivables (Tables) link:presentationLink link:calculationLink link:definitionLink 995960 - Disclosure - Fair value of financial instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 995970 - Disclosure - Inventories (Tables) link:presentationLink link:calculationLink link:definitionLink 995980 - Disclosure - Trade receivables (Tables) link:presentationLink link:calculationLink link:definitionLink 995990 - Disclosure - Other Current Receivables (Tables) link:presentationLink link:calculationLink link:definitionLink 996000 - Disclosure - Prepaid expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 996010 - Disclosure - Cash and cash equivalents (Tables) link:presentationLink link:calculationLink link:definitionLink 996020 - Disclosure - Liabilities to Credit Institutions (Tables) link:presentationLink link:calculationLink link:definitionLink 996030 - Disclosure - Other non-current liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 996040 - Disclosure - Provisions (Tables) link:presentationLink link:calculationLink link:definitionLink 996050 - Disclosure - Other current liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 996060 - Disclosure - Accrued expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 996070 - Disclosure - Changes in liabilities attributable to financing activities (Tables) link:presentationLink link:calculationLink link:definitionLink 996080 - Disclosure - Loss per share (Tables) link:presentationLink link:calculationLink link:definitionLink 996090 - Disclosure - Non-current Assets Held for Sale (Tables) link:presentationLink link:calculationLink link:definitionLink 996100 - Disclosure - Summary of Accounting Policies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996110 - Disclosure - Summary of Accounting Policies - Estimated Useful Life of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 996120 - Disclosure - Financial Risk Management - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996130 - Disclosure - Financial Risk Management - Summary of Exposure to Foreign Currency Risk (Details) link:presentationLink link:calculationLink link:definitionLink 996140 - Disclosure - Financial Risk Management - Summary of Risk Exposure in Foreign Currencies (Details) link:presentationLink link:calculationLink link:definitionLink 996150 - Disclosure - Financial Risk Management - Summary of Risk Exposure in Foreign Currencies (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996160 - Disclosure - Financial Risk Management - Sensitivity Analysis of Interest Rate (Details) link:presentationLink link:calculationLink link:definitionLink 996170 - Disclosure - Financial Risk Management - Sensitivity Analysis of Interest Rate (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996180 - Disclosure - Financial Risk Management - Sensitivity to Changes In Fair Value From Short-term Investments (Details) link:presentationLink link:calculationLink link:definitionLink 996190 - Disclosure - Financial Risk Management - Sensitivity to Changes In Fair Value From Short-term Investments (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996200 - Disclosure - Financial Risk Management - Summary of Aging of Groups Trade Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 996210 - Disclosure - Financial Risk Management - Summary of Allowance for Expected Credit Losses of Trade Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 996220 - Disclosure - Financial Risk Management - Summary of Financial Liabilities into Maturity Groupings based on Contractual Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 996230 - Disclosure - Significant Accounting Judgments Estimates and Assessments - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996240 - Disclosure - Seasonality - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996250 - Disclosure - Segment Information - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996260 - Disclosure - Segment Information - Summary of Revenue Adjusted EBITDA and EBITDA (Details) link:presentationLink link:calculationLink link:definitionLink 996270 - Disclosure - Segment Information - Summary of Revenue Adjusted EBITDA and EBITDA (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996280 - Disclosure - Segment Information - Summary of Non-current Assets by Country (Details) link:presentationLink link:calculationLink link:definitionLink 996290 - Disclosure - Segment Information - Summary of Revenue from External Customers (Details) link:presentationLink link:calculationLink link:definitionLink 996300 - Disclosure - Depreciation Amortization and Impairment by Per Function - Summary of Depreciation and Amortization (Details) link:presentationLink link:calculationLink link:definitionLink 996310 - Disclosure - Depreciation Amortization and Impairment by Per Function - Summary of Depreciation and Amortization (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996320 - Disclosure - Employee and Personnel Costs - Summary of Employee Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 996330 - Disclosure - Employee and Personnel Costs - Summary of Employee Benefits (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996340 - Disclosure - Employee and Personnel Costs - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996350 - Disclosure - Employee and Personnel Costs - Summary of Employee Benefits Expenses by Function (Details) link:presentationLink link:calculationLink link:definitionLink 996360 - Disclosure - Share-based compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996370 - Disclosure - Share-based compensation - Summary of RSUs (Details) link:presentationLink link:calculationLink link:definitionLink 996380 - Disclosure - Share-based compensation - Summary of Employee Stock Options Granted (Details) link:presentationLink link:calculationLink link:definitionLink 996390 - Disclosure - Other Operating Income and (Expenses), Net - Summary of Other Operating Income and (Expenses), Net (Details) link:presentationLink link:calculationLink link:definitionLink 996400 - Disclosure - Finance income and expenses - Summary of Finance Income and Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 996410 - Disclosure - Finance income and expenses - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996420 - Disclosure - Net exchange-rate differences - Summary of Net exchange-rate differences (Details) link:presentationLink link:calculationLink link:definitionLink 996430 - Disclosure - Income tax - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996440 - Disclosure - Investments in Subsidiaries - Summary of Principal Subsidiaries (Details) link:presentationLink link:calculationLink link:definitionLink 996450 - Disclosure - Intangible Assets - Summary of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 996460 - Disclosure - Intangible Assets - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996470 - Disclosure - Property, Plant and Equipment - Summary of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 996480 - Disclosure - Property, plant and equipment - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996490 - Disclosure - Leases - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996500 - Disclosure - Leases - Summary of Changes in Right of Use Assets (Details) link:presentationLink link:calculationLink link:definitionLink 996510 - Disclosure - Leases - Summary of Maturity Analysis of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 996520 - Disclosure - Other Non-Current Receivables - Summary of Other Non-Current Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 996530 - Disclosure - Other Non-Current Receivables - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996540 - Disclosure - Fair value of financial instruments - Summary of Financial Instruments Include Interest Rate Swaps, Present Value of Estimated Future Cash Flows (Details) link:presentationLink link:calculationLink link:definitionLink 996550 - Disclosure - Fair value of financial instruments - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996560 - Disclosure - Fair value of financial instruments - Summary of Convertible Notes (Details) link:presentationLink link:calculationLink link:definitionLink 996570 - Disclosure - Fair value of financial instruments - Summary of Carrying Amount of Convertible Notes (Details) link:presentationLink link:calculationLink link:definitionLink 996580 - Disclosure - Fair value of financial instruments - Summary of Key Inputs and Assumptions Used in the Valuation Model for Fair Value of the Convertible Note (Details) link:presentationLink link:calculationLink link:definitionLink 996590 - Disclosure - Fair value of financial instruments - Summary of Key Inputs and Assumptions Used in the Valuation Model for Fair Value of the Convertible Note (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996600 - Disclosure - Fair value of financial instruments - Summary of Impact of Key Inputs and Assumptions on the Fair Value of the Convertible Notes (Details) link:presentationLink link:calculationLink link:definitionLink 996610 - Disclosure - Fair value of financial instruments - Summary of Impact of Key Inputs and Assumptions on the Fair Value of the Convertible Notes (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996620 - Disclosure - Inventories - Summary of Inventories (Details) link:presentationLink link:calculationLink link:definitionLink 996630 - Disclosure - Inventories - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996640 - Disclosure - Trade receivables - Summary of Trade Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 996650 - Disclosure - Trade receivables - Summary of Carrying Amounts By Currency (Details) link:presentationLink link:calculationLink link:definitionLink 996660 - Disclosure - Other Current Receivables - Summary of Other Current Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 996670 - Disclosure - Other Current Receivables - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996680 - Disclosure - Prepaid Expenses - Summary of Prepaid Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 996690 - Disclosure - Cash and Cash Equivalents - Summary of Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 996700 - Disclosure - Equity - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996710 - Disclosure - Liabilities to Credit Institutions - Summary of Liabilities to Credit Institutions (Details) link:presentationLink link:calculationLink link:definitionLink 996720 - Disclosure - Liabilities to Credit Institutions - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996730 - Disclosure - Other non-current liabilities - Summary of Other Non-current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 996740 - Disclosure - Provisions - Summary of Changes in Provisions (Details) link:presentationLink link:calculationLink link:definitionLink 996750 - Disclosure - Provisions - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996760 - Disclosure - Shareholder Loans - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996770 - Disclosure - Convertible Notes - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996780 - Disclosure - Other Current Liabilities - Summary of Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 996790 - Disclosure - Accrued Expenses - Summary of Accrued Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 996800 - Disclosure - Related Party Disclosures - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996810 - Disclosure - Changes in Liabilities Attributable to Financing Activities - Summary of Changes in Liabilities Attributable to Financing Activities (Details) link:presentationLink link:calculationLink link:definitionLink 996820 - Disclosure - Loss per Share - Summary of Loss per Share (Details) link:presentationLink link:calculationLink link:definitionLink 996830 - Disclosure - Loss per Share - Summary of Loss per Share (Parenthetical) (Details) link:presentationLink link:calculationLink link:definitionLink 996840 - Disclosure - Loss per Share - Summary of Potential Dilutive Securities Not Included in Diluted Loss per Share Calculations (Details) link:presentationLink link:calculationLink link:definitionLink 996850 - Disclosure - Commitments and Contingencies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996860 - Disclosure - Non-current assets held for sale - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 996870 - Disclosure - Events After the End of the Reporting Period - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 999009 - Disclosure - Anchoring link:presentationLink link:calculationLink link:definitionLink Working capital credit facility. Working Capital Credit Facility [Member] Working Capital Credit Facility Impairment reversal related to discontinued construction of production facilities Impairment reversal related to discontinued construction of production facilities. Cash outflow for leases Cash outflow for leases Disclosure of financial assets [table] Ogden Facility. Ogden Facility Member Ogden Facility Current prepaid expenses Prepaid expenses Total Seasonality [Abstract] Seasonality. Reserve of exchange differences on translation Foreign currency translation reserve Other reserves Cash repayments of advances and loans from related parties Repayment of shareholder loans Repayment of shareholder loans Land and buildings [member] Land and Buildings Accruals classified as current Accrued expenses Real property mortgage certificates. Real property mortgage certificates [Member] Real Property Mortgage Certificates Fort Worth. Fort Worth [Member] Fort Worth, Texas Loans receivable maturity. Loans Receivable Maturity Top of range [member] Top of Range Other current liabilities. Other Current Liabilities [Abstract] Increase (decrease) through effect of changes in foreign exchange rates, liabilities arising from financing activities Foreign exchange adjustments Non-executive director. Non Executive Director [Member] Non-Executive Director Percentage amount by which value assigned to long-term EBITDA margin decrease in order for recoverable amount to be equal to carrying amount. Percentage Amount By Which Value Assigned To long-term EBITDA margin decrease In Order For Recoverable Amount To Be Equal To Carrying Amount Percentage amount by which value assigned to long-term EBITDA margin decrease in order for recoverable amount to be equal to carrying amount Oatly Sweden Operations & Supply AB. Oatly Sweden Operations And Supply A B [Member] Oatly Sweden Operations & Supply AB Form of credit toward future use of shared assets member. Form of Credit Toward Future Use of Shared Assets [Member] Form of Credit Toward Future Use of Shared Assets Reconciliation of changes in allowance account for credit losses of financial assets [abstract] Foreign currency translation reserve. Foreign Currency Translation Reserve [member] Foreign Currency Translation Reserve Increase (decrease) in equity Increase (decrease) in equity Total increase (decrease) in equity Increase decrease through net exchange differences allowance account for credit losses of financial asset. Increase Decrease Through Net Exchange Differences Allowance Account For Credit Losses Of Financial Asset Translation differences Number of purchase agreements. Number Of Purchase Agreements Number of purchase agreements Interest rate risk hundred basis point. Interest Rate Risk Hundred Basis Point [Member] 100 Basis Points Increase (decrease) through share-based payment transactions, equity Share-based compensation Share-based compensation expense Increase Decrease Other Than Through Business Combinations Intangible Assets Other Than Goodwill Increase decrease other than through business combinations intangible assets other than goodwill. Additions Classes of property, plant and equipment [axis] Classes of property, plant and equipment [axis] Weighted average fair value at measurement granted in exchange for stock options. Weighted Average Fair Value At Measurement Granted In Exchange For Stock Options Grant date fair value, Granted in exchange for stock options Payments of lease liabilities, classified as financing activities Repayment of lease liabilities Payments of lease liabilities Decrease in existing provisions other provisions. Decrease in Existing Provisions Other Provisions Decreases: included in the acquisition value of right-of-use assets Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets Fair value changes (including interest expenses) recognized in the consolidated statement of operations Total gains (losses) recognised in profit or loss including exchange differences, fair value measurement, assets Borrowings interest rate description. Borrowings Interest Rate Description Interest rate description Increase (decrease) through Assets held for sale , liabilities arising from financing activities Increase (decrease) through Assets held for sale , liabilities arising from financing activities Assets held for sale (Note 34) Gross current trade receivables. Gross Current Trade Receivables Gross carrying amount Trade receivables 1-30 Days Past Due Past due more than one day but less than one month. Past Due More Than One Day but Less Than One Month [Member] Non-current lease liabilities Lease liabilities Non-current lease liabilities (Note 16) Granted on November Two Thousand Twenty One. Granted On November Two Thousand Twenty One [Member] November 2021 Granted November Current [member] Current Term Loan [Member] Term Loan [Member] Term Loan Principal activities of subsidiary. Principal Activities Of Subsidiary Principal activities Estimate of benefit payments expected to be paid from defined benefit plan Expected premiums SOFR with Base Rate. S O F R With Base Rate [Member] SOFR with Base Rate Classes of financial assets [axis] Classes of financial assets [axis] Increase (decrease) in fair value measurement, assets Changes in fair value Total increase (decrease) in fair value measurement, assets Changes in fair value Disclosure of detailed information about intangible assets [abstract] Nominal amount of liabilities to credit institutions with variable interest rate. Nominal Amount Of Liabilities To Credit Institutions With Variable Interest Rate Nominal amount of liabilities to credit institutions Credit institute in United States member. Credit Institute In United States [Member] Credit Institute in United States Unused tax losses [member] Unused Tax Losses Term loan one. Term Loan Two Long term financing Prepaid selling and marketing expenses. Prepaid Selling And Marketing Expenses Prepaid selling and marketing expenses China (Asia III). China Asia I I I [Member] China (Asia III) Consulting agreement. Consulting Agreement [Member] Consulting Agreement Incremental facility commitments amount upon amendment. Incremental Facility Commitments Amount Upon Amendment Incremental facility commitments amount upon amendment S O F R [member] S O F R [member] SOFR Lease term extension option. Lease Term Extension Option Period of lease term option to extend Convertible instruments [member] Convertible Notes Cash flows from (used in) financing activities Net cash flows from (used in) financing activities Cash flows used in financing activities Key management personnel compensation, post-employment benefits Pension and post-employment benefits Cybersecurity Risk Management, Strategy, and Governance [Abstract] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Cybersecurity Risk Board of Directors Oversight [Text Block] Current provision for decommissioning, restoration and rehabilitation costs Current, Decommissioning Other. Other [Member] Other Accrued Expenses Other Property, plant and equipment, pledged as security Real estate mortgages Issue of equity Issue of shares Aggregate Purchase Price Paid Aggregate Purchase Price Paid Aggregate purchase price paid Conversion share price at valuation date. Conversion Share Price At Valuation Date Share price at valuation date Disclosure of detailed information about finance income and expenses. Disclosure Of Detailed Information About Finance Income And Expenses Explanatory Summary of Finance Income and Expenses Effect of exchange rate changes on cash and cash equivalents Exchange rate differences in cash and cash equivalents Disclosure of reconciliation of liabilities arising from financing activities [line items] Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Line Items] Sensitivity Analysis For Interest Rate Risk Reasonably Possible Increase Impact On Loss Before Tax Sensitivity analysis for interest rate risk reasonably possible increase impact on loss before tax. Sensitivity analysis for interest rate risk reasonably possible increase impact on loss before tax Percentage of impact of decreasing volatility on convertible notes. Percentage of impact of decreasing volatility on convertible notes Classes of financial instruments [axis] Classes of financial instruments [axis] Borrowings, maturity Maturity Maturity date Ogden. Ogden Finance costs Finance expenses Total finance expenses Short-term derivatives. Short-term derivatives Americas [Member] Americas Cash Cash at bank and on hand Total cash Other inflows (outflows) of cash, classified as investing activities Other inflows (outflows) of cash Other Conversion Price In Ordinary Shares Conversion price in ordinary shares. Conversion price in ordinary shares Granted On May Two Thousand Twenty Two. Granted On May Two Thousand Twenty Two [Member] May 2022 Food service channel. Food Service Channel [Member] Foodservice Summary of weighted average number of shares explanatory. Summary Of Weighted Average Number Of Shares Explanatory Summary of Weighted Average Number of Shares Disclosure of summary of prepaid expenses. Disclosure Of Summary Of Prepaid Expenses Explanatory Summary of Prepaid Expenses The amount of advances to suppliers before goods or services are received. Advances To Suppliers Advances to suppliers Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, inventories Write-down of inventories Total undiscounted cash flows. Total Undiscounted Cash Flows Member Total Undiscounted Cash Flows Description of Accounting Policies Relevant To Understanding of Financial Statements [Text Block] Description of Accounting Policies Relevant To Understanding of Financial Statements [Text Block] Current versus non-current classification Other costs related to assets held for sale. Other Costs Related To Assets Held For Sale Other costs related to assets held for sale (Note 34) Other costs related to assets held for sale (Note 34) Segments [domain] Classes of intangible assets and goodwill [domain] Production plants three. Production Plants Three [Member] Production Plants Three Increase (decrease) through exercise of warrants, equity Exercise of warrants Disclosure of changes in provisions. Disclosure Of Changes In Provisions Schedule of Changes in Provisions Number Of Shares Sold The number of shares sold by the entity. Number of shares sold Noncurrent receivables. Noncurrent Receivables [Table] Disclosure of deferred taxes [text block] Summary of Deferred Tax Financial liabilities Total financial liabilities Total financial liabilities Disclosure of other operating income and expenses, net. Disclosure of Other Operating Income and Expenses Net [Line Items] Non-current financial liabilities at fair value through profit or loss [abstract] Financial liabilities Segment consolidation items [domain] Cost of sales Cost of goods sold Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Interest rate risk three hundred. Interest Rate Risk Three Hundred Basis Point [Member] 300 Basis Points Commitments and contingencies. Commitments And Contingencies [Line Items] Commitments And Contingencies [Line Items] Same accounting policies and methods of computation followed in interim financial statements Same accounting policies and methods of computation followed in interim financial statements Number of A shares. Number Of A Shares [Member] Number of A Shares Disclosure of reconciliation of changes in intangible assets and goodwill [text block] Summary of Intangible Assets Temporary difference, unused tax losses and unused tax credits [axis] Temporary difference, unused tax losses and unused tax credits [axis] Cereal Base CEBA AB Cereal Base C E B A A B [Member] Cereal Base CEBA AB Cybersecurity Risk Management Third Party Engaged [Flag] Cash and cash equivalents Cash and cash equivalents Total Cash and cash equivalents at the beginning of the period Cash and cash equivalents at the end of the period Profit (loss) from operating activities Operating loss Provision asset held for sale. Provision Asset Held For Sale Assets held for sale Assets held for sale Volume Short fall Expenses Volume Short fall Expenses Shortfall expenses Percentage of impact of increasing expected volatility. Percentage Of Impact Of Increasing Expected Volatility Percentage of impact of increasing expected volatility Total received sales price. Total Received Sales Price Purchase price received SGD/CNY exchange rate. S G D Vs C N Y Exchange Rate [Member] SGD/CNY Exchange Rate Percentage of impact of increasing share price. Percentage Of Impact Of Increasing Share Price Percentage of impact of increasing share price Increase in existing provisions, other provisions Decreases: included in the acquisition value of right-of-use assets Increases: Included in the acquisition value of right-of-use assets Assets [abstract] ASSETS Assets in the consolidated statement of financial position China Resources Verlinvest Health Investment Limited. China Resources Verlinvest Health Investment Limited [Member] China Resources Verlinvest Health Investment Limited Disclosure of leases [text block] Leases Geographical [Domain] Geographical Adjusted earnings before interest, taxes, depreciation, and amortization. Adjusted Earnings Before Interest Taxes Depreciation And Amortization Adjusted EBITDA Prepaid insurance expenses. Prepaid Insurance Expenses Prepaid insurance expenses Comprehensive income Total comprehensive income (loss) for the period Income taxes paid (refund), classified as operating activities Income tax paid Income taxes refund (paid) Description of expected volatility of convertible notes. Description Of Expected Volatility Of Convertible Notes Expected price volatility of the Company share The disclosure of detailed Information about other current liabilities. Disclosure Of Detailed Information About Other Current Liabilities Explanatory Summary of Other Current Liabilities Ordinary share [Member] Ordinary share. Ordinary share Severance pay. Severance Pay Severance pay Summary of potential dilutive instruments that were not included in diluted loss per share calculations. Summary Of Potential Dilutive Instruments That Were Not Included In Diluted Loss Per Share Calculations Explanatory Summary of Potential Dilutive Securities that were not Included in Diluted Loss per Share Calculations Uncommitted incremental revolving facility option. Uncommitted incremental revolving facility option Depreciation, property, plant and equipment Depreciation charge Number of Share options vested and exercisable in sharebased payment arrangement. Number Of Share Options Vested and exercisable In Sharebased Payment Arrangement Vested and exercisable as of June 30, 2025 Number of installments. Number Of Installments Number of installments Increase through adjustments arising from passage of time, other provisions Unwinding of discount effect Risk-free interest rate decrease in fair value of convertible notes. Risk-free interest rate decrease in fair value of convertible notes Risk-free interest rate decrease 1 percentage point Carrying amount [member] Carrying amount [member] Organizational restructuring. Organizational Restructuring [Member] Organizational Restructuring Information about potential exposure to future cash outflows not reflected in measurement of lease liability Statement Of Cash Flows [Line Items] Statement Of Cash Flows [Line Items] Useful life measured as period of time, property, plant and equipment Estimated useful life Number of geographical areas. Number Of Geographical Areas Number of geographical areas Disclosure of detailed information about financial instruments [line items] Disclosure Of Financial Instruments [Line Items] Amounts receivable, related party transactions Loans to related parties Description of accounting policy for determining components of cash and cash equivalents [text block] Cash and cash equivalents Convertible notes. Convertible Notes Convertible notes, Ending Balance Convertible notes, Beginning Balance Convertible notes Carrying amount Office equipment [member] Office Equipment United Kingdom, Pounds GBP Pre-tax discount rate member. Pre-Tax Discount Rate [Member] Pre-Tax Discount Rate Disclosure of detailed information about reconciliation of net deferred tax. Disclosure Of Detailed Information About Reconciliation Of Net Deferred Tax Explanatory Summary of Reconciliation of Net Deferred Tax Comprehensive income attributable to [abstract] Attributable to: November 2022 Granted On November Two Thousand Twenty Two. Granted On November Two Thousand Twenty Two [Member] Impairment loss recognised in profit or loss, property, plant and equipment Impairment Non-cash impairments Impairment Statement that lessee accounts for short-term leases using recognition exemption Shorter lease term period Unallocated amounts [member] Unallocated Amounts Lease liabilities Lease obligations Lease liabilities Total lease liabilities Disclosure of finance income and expenses. Disclosure of finance income and expenses [line items] Cybersecurity Risk Management, Strategy, and Governance [Table] Diluted loss per american depositary shares attributable to shareholder of the parent Diluted loss per american depositary shares attributable to shareholder of the parent. Diluted, Loss per ADS, attributable to shareholder of the parent (1 ADS representing 20 ordinary shares): Diluted loss per ADS, U.S. $ Interest rate risk [member] Interest rate risk [member] Lease liabilities embedded leases. Lease Liabilities Embedded Leases Lease liabilities Borrowing costs capitalised Borrowing costs capitalized Current value added tax payables Value added tax Gross lease liabilities Lease liabilities Fair value of convertible notes. Fair Value of Convertible Notes Fair value of convertible notes Directors' remuneration expense Amount recognized for compensation Intangible assets and goodwill [abstract] Accumulated tax loss carry forwards. Accumulated Tax Loss Carry Forwards Accumulated loss carry-forwards Disclosure of non-adjusting events after reporting period [abstract] Explanation of seasonality or cyclicality of interim operations Adjustments for income tax expense Income tax expense Reduction of share capital through retirement of shares. Reduction Of Share Capital Through Retirement Of Shares Reduction of share capital through retirement of shares Subsidiaries [domain] SEK/NOK. S E K N O K [Member] SEK/NOK Disclosure of transactions between related parties [line items] Disclosure Of Transactions Between Related Parties [Line Items] Attribution of expenses by nature to their function [domain] Description of accounting policy for foreign currency translation [text block] Foreign currency translation Disclosure of non-adjusting events after reporting period [line items] Granted on may two thousand twenty three. Granted On May Two Thousand Twenty Three [Member] May 2023 Profit (loss) before tax Loss before tax Loss before tax Proportion of ownership interest in subsidiary Ownership interest percentage Sensitivity analysis for interest rate risk reasonably possible decrease impact on loss before tax Sensitivity analysis for interest rate risk reasonably possible decrease impact on loss before tax. Increase (decrease) through conversion of ordinary shares in to loan. Increase Decrease Through Conversion Of Ordinary Shares In To Loan Increase (Decrease) through conversion of ordinary shares in to loan Revenue Revenue Total revenue Revenues Expense from sharebased compensation transactions with employees excluding external consultants. Expense From Sharebased Compensation Transactions With Employees Excluding External Consultants Share-based compensation Percentage of share capital owned in subsidiary. Percentage of Share capital Owned in Subsidiary Percentage of share capital owned in subsidiary Description of accounting policy for segment reporting [text block] Segment reporting Designated loans or receivables at fair value through profit or loss [abstract] The increase (decrease) in equity resulting from redemption of warrants. Increase Decrease Through Redemption Of Warrants Redemption of warrants Interest expense on other financial liabilities Interest expenses on shareholder loans Cash flows from (used in) operating activities Net cash flows used in operating activities Net cash flows from (used in) operating activities Description of nature of non-adjusting event after reporting period ADS ratio change TLB credit agreement and EIF facility. T L B Credit Agreement And E I F Facility [Member] TLB Credit Agreement and EIF Facility Disclosure Of Detailed Information About Finance Income And Expense Abstract Disclosure Of Detailed Information About Finance Income And Expense [Abstract] Derivative financial liabilities Derivatives Liabilities Liabilities at end of period Liabilities at beginning of period Total liabilities Liabilities Risk-free interest rate increase in fair value of convertible notes. Risk-free interest rate increase in fair value of convertible notes Risk-free interest rate increase 1 percentage point USD/SEK. U S D S E K [Member] USD/SEK At cost [member] Cost Exchange differences Increase (decrease) through net exchange differences, other provisions Granted On November Two Thousand Twenty Three. Granted On November Two Thousand Twenty Three [Member] November 2023 The increase (decrease) in equity resulting from bonus issue. Increase Decrease Through Bonus Issue Bonus issue Provisions [abstract] Commitments transferred. Commitments transferred Conversion Price In Ordinary Shares Due To ADS Ratio Change Conversion price in ordinary shares due to ADS ratio change. Conversion price in ordinary shares due to ADS ratio change Applicable tax rate Income tax rate Effective tax rate LTI incentive plan 2021. L T I Incentive Plan Two Thousand And Twenty One [Member] LTI 2021 Impairment loss Asset impairment charge Impairment charge Asset impairment Research and development expenses. Research And Development Expenses [Member] Research and Development Expenses Types of contracts [axis] Types of contracts [axis] Functional or presentation currency [member] Functional or presentation currency [member] Nativus company limited and verlinvest s.a. Nativus Company Limited and Verlinvest S.A [Member] Nativus Company Limited and Verlinvest S.A Liabilities arising from financing activities [domain] Bank borrowings, undiscounted cash flows Liabilities to credit institutions Allowance account for credit losses of financial assets Allowance account for credit losses of financial assets at end of period Allowance account for credit losses of financial assets at beginning of period Allowance for expected credit losses As at December 31 As at January 1 Unused tax losses for which no deferred tax asset recognised Unused tax losses for which no deferred tax asset recognized Total unrecognized deferred tax assets Classes of current inventories [abstract] Borrowings amortization percentage. Borrowings amortization percentage Borrowings, amortization percentage Accrued production expenses member. Accrued Production Expenses [Member] Accrued Production Expenses [SEK/CNY. S E K C N Y [Member] SEK/CNY Disclosure of depreciation and amortization. Disclosure Of Depreciation And Amortization [Table] Disclosure Of Depreciation And Amortization [Table] Additions other than through business combinations, property, plant and equipment Additions Liabilities to credit institutions member. Liabilities To Credit Institutions [Member] Liabilities to Credit Institutions Discontinued operations [member] Discontinued Operations Other reserves [member] Other Reserves Greater China. Greater China [Member] Greater China Adjustments for provisions Movements in provisions Amendment Flag Amendment Flag Disclosure of share capital, reserves and other equity interest [text block] Share capital and other contributed capital Equity Disclosure of detailed information about property, plant and equipment [line items] Disclosure Of Property Plant And Equipment [Line Items] Sustainable revolving credit facility multicurrency revolving credit facility. Sustainable Revolving Credit Facility Multicurrency Revolving Credit Facility Sustainable multicurrency revolving credit facility Borrowings by name [domain] Non-cash flows abstract. Non Cash Flows [Abstract] Non-cash flows: Asset impairment charge and other costs related to closure of production facility. Asset Impairment Charge And Other Costs Related To Closure Of Production Facility Asset impairment charges and other costs related to closure of production facility Classes of intangible assets and goodwill [axis] Classes of intangible assets and goodwill [axis] Number of other equity instruments forfeited in share-based payment arrangement Number of instruments, Forfeited Number of warrants, Forfeited during the period Entity Address, Postal Zip Code Entity Address, Postal Zip Code Nominal interest rate for first year. Nominal Interest Rate For First Year Nominal interest rate for first year Categories of related parties [domain] Major customers [axis] Other non-current liabilities Other non-current liabilities Total Cost of sales [member] Cost of Goods Sold Number of lease agreements regarding production facilities entered in to during the year. Number Of Lease Agreements Regarding Production Facilities Entered In To During Year Number of lease agreements Intersegment revenue. Intersegment Revenue [Member] Intersegment Revenue Percentage of increase in general commodity cost price to effect commodity cost. Percentage Of Increase In General Commodity Cost Price To Effect Commodity Cost Percentage of increase in general commodity cost price to effect commodity cost Disclosure of information that enables users of financial statements to evaluate changes in liabilities arising from financing activities [text block] Changes in liabilities attributable to financing activities Cybersecurity Risk Role of Management [Text Block] Current legal proceedings provision Current, Legal settlement Investments at fair value. Investments at fair value Investments at fair value Number Of Ordinary Shares Converted Number of ordinary shares converted. Number of ordinary shares converted Convertible notes. Convertible Notes [abstract] Right-of-use assets Right-of-use assets [member] Right-of-Use Assets Disclosure of operating segments [line items] Disclosure Of Operating Segments [Line Items] Promissory notes receivable maturity. Promissory Notes Receivable Maturity Maturity Net leverage ratio. Net Leverage Ratio Total net leverage ratio Fair value Weighted average fair value at measurement date, share options granted SEK/EUR. S E K E U R [Member] SEK/EUR Later than two years and not later than five years [member] Between 2 and 5 Years Reduced commitments. Reduced commitments Entity Address, Address Line One Entity Address, Address Line One Derivative financial assets Derivatives Legal proceedings provision [member] Legal Settlement Existing facility. Existing Facility [Member] Existing Facility Non-controlling interests [member] Non-controlling Interests Interest income Interest income Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Number of Embedded Lease Contracts. Number of Embedded Lease Contracts Number of embedded lease contracts Market interest rate increase in fair value of convertible notes Market interest rate increase in fair value of convertible notes Market interest rate increase 1 percentage point Utilized loan amount Utilized loan amount. Utilized Loan Amount Utilisation, allowance account for credit losses of financial assets Receivables written off during the year as uncollectible Utilisation, allowance account for credit losses of financial assets Trademarks, patents and similar rights. Trademarks Patents And Similar Rights [Member] Trademarks, Patents and Similar Rights SEK/USD exchange rate. S E K Vs U S D Exchange Rate [Member] SEK/USD Exchange Rate USD/SEK exchange rate. U S D Vs S E K Exchange Rate [Member] USD/SEK Exchange Rate American depository receipts. American Depository Receipts [Member] American Depositary Shares Percentage of impact of increasing market interest rate on convertible notes. Percentage point of impact of increasing market interest rate on convertible notes Convertible notes in financing after reflecting original issue of discount. Convertible Notes in Financing After Reflecting Original Issue of Discount Convertible notes in financing after reflecting original issue of discount Disclosure of information about liabilities to credit institutions explanatory. Disclosure Of Information About Liabilities To Credit Institutions Explanatory Liabilities to Credit Institutions Transfers between levels in fair value hierarchy. Transfers Between Levels In Fair Value Hierarchy Transfers between levels Maanshan. Maanshan [Member] Ma’anshan Later than five years [member] After 5 Years Disclosure of nature and extent of risks arising from financial instruments [table] Disclosure Of Nature And Extent Of Risks Arising From Financial Instruments [Table] Denominated in EUR member. Denominated In E U R [Member] Denominated in EUR Cybersecurity Risk Board Committee or Subcommittee Responsible for Oversight [Text Block] Number of shares issued Total number of shares issued Number of ordinary shares allotted and issued Percentage of aim of exposure to currency risks. Percentage of aim of exposure to currency risks Percentage of aim of exposure to currency risks Provision used, other provisions Amounts used during the year Provision used, other provisions Amounts used during the year Unobservable inputs [axis] Disclosure of income tax [text block] Income tax Oatly Shanghai Co. Ltd. Oatly Shanghai Co Ltd [Member] Oatly Shanghai Co. Ltd. Undrawn borrowing facilities Sustainable revolving credit facility agreement, increase in undrawn amount Document Type Document Type Increase through other contributions by owners, equity Shareholders’ contributions Percentage of entity's revenue Percentage of revenues derived from customer Cash flows from (used in) investing activities Net cash flows (used in)/from investing activities Net cash flows from (used in) investing activities Other costs related to closure of production facility. Other costs related to closure of production facility Other costs related to closure of production facility (Note 26) Other costs related to closure of production facility (Note 26) Other current liabilities Disclosure of other current liabilities [text block] Entity Central Index Key Entity Central Index Key Growth rate used to extrapolate cash flow projections Long-term growth rate (%) Estimated growth rate Increase through new leases, liabilities arising from financing activities Addition – leases Revolving credit facilities. Revolving Credit Facilities [Member] Revolving Credit Facility Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss, trade and other receivables Impairment loss on trade receivables Impairment (gain)/loss on trade receivables Liabilities to credit institutions. Liabilities To Credit Institutions [Table] Liabilities To Credit Institutions [Table] Foreign currency forward contracts undiscounted cash out flows. Foreign Currency Forward Contracts Undiscounted Cash Out Flows Foreign currency forward contracts- outflows Increase in loss before tax due to borrowings adjustment to interest rate basis. Increase In Loss Before Tax Due To Borrowings Adjustment To Interest Rate Basis Impact on loss before tax, increase Bottom of range [member] Bottom of Range Receivable related to production equipment returned to a supplier due to decision to discontinue construction of production facility. Receivable Related To Production Equipment Returned To A Supplier Due To Decision To Discontinue Construction Of Production Facility [member] Receivable Related to Production Equipment Returned to a Supplier Due to Decision to Discontinue Construction of Production Facility Decreases Disposals and retirements, right-of-use assets Decreases Total disposals and retirements, right-of-use assets Continuing and discontinued operations [axis] Percentage of impact of decreasing market interest rate on convertible notes. Percentage point of impact of decreasing market interest rate on convertible notes Capitalisation rate of borrowing costs eligible for capitalisation Capitalization rate of borrowing costs Bank borrowings carrying amount. Bank Borrowings Carrying Amount Liabilities to credit institutions Long term prepaid expenses. Long Term Prepaid Expenses Long-term prepaid expenses Intangible assets other than goodwill [member] Intangible assets other than goodwill [member] Intangible assets Summary of significant accounting policies. Summary Of Significant Accounting Policies [Abstract] United States of America, Dollars USD Types of interest rates [domain] Geographical areas [axis] Geographical areas [axis] Increase (decrease) in working capital Changes in working capital: Changes in working capital: Borrowings Liabilities to credit institutions balance Total Term loan facility period. Term loan facility period Accordion option. Accordion Option [Member] Accordion Option Disclosure of prepaid expenses. Disclosure Of Prepaid Expenses Explanatory Prepaid expenses Convertible notes, Sale price percentage equals or exceeds. Convertible notes, Sale price percentage equals or exceeds Goodwill [member] Goodwill Associates [domain] Havrekärnan AB Havrekarnan A B [Member] Havrekärnan AB The disclosure of detailed information about accrued expenses. Disclosure Of Detailed Information About Accrued Expenses Explanatory Summary of Accrued Expenses Oatmilk product. Oatmilk Product [Member] Oatmilk Key management personnel compensation Total Euro Member Countries, Euro EUR Oatly US Operations & Supply Inc Oatly U S Operations And Supply Inc [Member] Oatly US Operations & Supply Inc Retained earnings [member] Accumulated Deficit Depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss Total depreciation, amortisation and impairment loss (reversal of impairment loss) recognised in profit or loss Total depreciation/amortization/impairment by function Hypothetical deferred tax impact of unused tax losses for which no deferred tax asset recognised. Hypothetical Deferred Tax Impact Of Unused Tax Losses For Which No Deferred Tax Asset Recognised Hypothetical deferred tax impact of unused tax losses for which no deferred tax asset recognised Percentage of ownership interest in related party by member of board of director. Percentage Of Ownership Interest In Related Party By Member Of Board Of Director Percentage of ownership interest in related party by member of board of director Share capital. Share Capital Share capital Types of risks [domain] Shareholder loans member. Shareholder Loans [Member] Shareholder Loans GERMANY Germany Loans and receivables Loans issued to employees Description of accounting policies and methods of computation followed in interim financial statements [text block] Summary of accounting policies Exchange differences on translation [abstract] Deferring settlement period of current liability. Deferring Settlement Period Of Current Liability Deferring settlement period of current liability SRCF agreement and EIF facility. SRCF Agreement And EIF Facility [Member] SRCF Agreement and EIF Facility Machinery [member] Machinery Disclosure of revenue [text block] Summary of Revenue from external customers, broken down by channel and segment Non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets, and rights arising under insurance contracts Non-current assets Disclosure of subsidiaries [abstract] Distribution costs Customer distribution costs Distribution costs Additional allowance recognised in profit or loss, allowance account for credit losses of financial asset. Additional Allowance Recognised In Profit Or Loss Allowance Account For Credit Losses Of Financial Asset Increase of allowance recognized in statement of operations during the year Related party transactions [abstract] Current Fiscal Year End Date Current Fiscal Year End Date Europe, Middle East and Africa Segment. Europe The Middle East And Africa Segment [Member] Europe & International EMEA Segment Convertible notes, Initial conversion price per ordinary share or ADS. Convertible notes, Initial conversion price per ordinary share or ADS Lowest potential reset price March 2025 Weighted average fair value at measurement date other equity instruments vested Grant date fair value , Vested Terminal growth rate member. Terminal Growth Rate [Member] Terminal Growth Rate Provision used to pay out restructuring expense Provision used to pay out restructuring expense. Foreign jurisdictions tax losses. Foreign Jurisdictions Tax Losses [Member] Foreign Jurisdictions Tax Losses Disclosure of subsidiaries [text block] Investments in subsidiaries Miscellaneous other operating income (expense). Miscellaneous other operating income (expense) Other Explanation of period over which management has projected cash flows Explanation of period over which management has projected cash flows Share capital percentage. Share Capital Percentage Share capital percentage Interest expense on bank loans and overdrafts Interest expenses on liabilities to credit institutions Borrowings extended term. Borrowings Extended Term Borrowings extended term Amount by which value assigned to key assumption must change in order for unit's recoverable amount to be equal to carrying amount Amount by which value assigned to key assumption must change in order for unit's recoverable amount to be equal to carrying amount Other non-current financial liabilities Other non-current liabilities Property, plant and equipment [member] Property, plant and equipment [member] Property, plant and equipment Oatly Hong Kong Holding Ltd Oatly Hong Kong Holding Ltd [Member] Oatly Hong Kong Holding Ltd Payments for debt issue costs Payment of loan transaction costs Description of Market interest rate of convertible notes. Description of Market interest rate of convertible notes Market interest rate Current liabilities Total current liabilities Current liabilities Warrants [member] Warrants CNY Vs SEK exchange rate. C N Y Vs S E K Exchange Rate [Member] CNY/SEK Exchange Rate Malmo. Malmo [Member] Malmo, Sweden Interest expense on debt instruments issued Interest expenses on Convertible Notes Interest expenses on Convertible Notes Amendments to sustainable revolving credit facility agreement and term Lloan B credit agreement. Amendments to Sustainable Revolving Credit Facility Agreement and Term Loan B Credit Agreement [Member] Amendments to Sustainable Revolving Credit Facility Agreement and Term Loan B Credit Agreement Fair value reserve. Fair Value Reserve [Member] Fair Value Reserve Employees. Employees [Member] Employees Geographical [Axis] Geographical Additional provisions, other provisions Additional provisions recognized Total additional provisions, other provisions Additional provisions recognized Useful life measured as period of time, intangible assets other than goodwill Intangible assets, estimated useful life Finance income (cost) Finance income and (expenses), net Total finance income and expenses, net Number of extension options. Number Of Extension Options Number of extension options Non-adjusting events after reporting period [axis] Non-adjusting events after reporting period [axis] SEK/EUR exchange rate. S E K Vs E U R Exchange Rate [Member] SEK/EUR Exchange Rate The disclosure of amounts recognized in statement of operations. Disclosure Of Amounts Recognized In Statement Of Operations Explanatory Summary of Amounts Recognized in Statement of Operations Prepaid expenses. Prepaid Expenses [Abstract] SEK/USD. S E K U S D [Member] SEK/USD Increase (decrease) through transfers, intangible assets other than goodwill Reclassification Chef Sam. Chef Sam [Member] Chef Sam Disclosure of detailed information about maturity analysis for derivative and non-derivative ​financial ​liabilities. Disclosure Of Detailed Information About Maturity Analysis For Derivative And Non Derivative Financial Liabilities Explanatory Summary of Financial Liabilities into Maturity Groupings based on Contractual Maturities Reclassifications of provisions other provisions. Reclassifications of Provisions Other Provisions Reclassifications Commodity price risk [member] Fair value/price risk [member] Commodity Price Risk Distribution agreement. Distribution Agreement [Member] Distribution Agreement Undrawn facilities relating with covenants. Undrawn Facilities Relating With Covenants Sustainable revolving credit facility agreement, increase in undrawn amount Description of accounting policy for impairment of non-financial assets [text block] Impairment of non-financial assets Convertible notes conversion price. Convertible Notes Conversion Price Conversion price The disclosure of detailed information about revenue from external customers. Disclosure Of Detailed Information About Revenue From External Customers Explanatory Summary of Revenue from External Customers Percentage of impact of decreasing share price on convertible notes Percentage of impact of decreasing share price on convertible notes Disclosure of classes of assets and liabilities held for sale. Disclosure of Classes of Assets and Liabilities Held for Sale [Explanatory] Disclosure of major classes of assets and liabilities classified as held for sale Amortization expense Amortisation expense Minimum raised capital amount. Minimum Raised Capital Amount Minimum raised capital amount Disclosure of financial risk management [text block] Financial risk management Hillhouse [member] Hillhouse. Hillhouse Accrued expenses table. Accrued Expenses [Table] Accrued Expenses [Table] Current maximum lease term extension date. Current Maximum Lease Term Extension Date Current lease term extension date Number of share options vested in share-based payment arrangement. Number of share options vested Floating charges security. Floating charges security [Member] Floating Charges Security Amendment fee. Amendment Fee Amendment fee Convertible Notes. Convertible Notes [Member] Convertible Notes Later than three months and not later than one year [member] Between 3 Months and 1 Year Disclosure of financial risk management. Disclosure Of Financial Risk Management [Line Items] Disclosure Of Financial Risk Management [Line Items] Disclosure of detailed information about financial instruments [text block] Summary of Financial Instruments Per Category Underlying equity instrument and depositary receipts [domain] Decrease in borrowings adjustment to interest rate basis. Decrease In Borrowings Adjustment To Interest Rate Basis Decrease in interest rate basis points Share holder loan. Share Holder Loan Shareholder loan Impairment related to closure of production facility. Impairment Related to Closure of Production Facility Impairment related to closure of production facility Non-cash impairments Impairment charges related to closure of production facility (Note 14,15,16,17,21) Weighted average exercise price of share options forfeited in share-based payment arrangement Weighted average exercise price, Forfeited Statement Of Cash Flows [Table] Statement Of Cash Flows [Table] Increase in borrowings adjustment to interest rate basis. Increase in Borrowings Adjustment To Interest Rate Basis Increase in interest rate basis points Lowest Potential Reset Price March 2024 Ratio Change From Ordinary Shares to ADS Lowest potential reset price March 2024 ratio change from ordinary shares to ADS. Lowest potential reset price March 2024 ratio change from ordinary shares to ADS Impairment Charge Related to Capital Expenditures Impairment Charge Related to Capital Expenditures Impairment charge related to capital expenditures OTLY Convertible Notes [Member] OTLY convertible notes. OTLY Convertible Notes Range [axis] Amounts payable, related party transactions Shareholder loans Amounts payable to related party Shareholder loans The disclosure of detailed information about employee benefits. Disclosure Of Detailed Information About Employee Benefits Explanatory Summary of Employee Benefits Current payables on social security and taxes other than income tax Employee withholding taxes Disclosure of operating segments [abstract] Cash flows from (used in) investing activities [abstract] Investing activities Property, plant and equipment and right-of-use assets. Property Plant And Equipment And Right Of Use Assets [Member] Property Plant And Equipment And Right Of Use Assets Convertible notes fair value changes (including interest expenses) recognized in consolidated statement of operations. Convertible Notes Fair Value Changes (Including Interest Expenses) Recognized In Consolidated Statement Of Operations Fair value changes (including interest expenses) recognized in the consolidated statement of operations In re Oatly Group AB Securities Litigation member. In re Oatly Group AB Securities Litigation [Member] In re Oatly Group AB Securities Litigation Segments [axis] Segments [axis] Disclosure of changes on fair value per warrant granted explanatory. Disclosure Of Changes On Fair Value Per Warrant Granted Explanatory Summary of Changes on Fair Value Per Warrant Granted Adjustments for decrease (increase) in trade and other receivables Decrease in trade receivables, other current receivables, prepaid expenses Weighted average exercise price of share options exercisable in share-based payment arrangement Weighted average exercise price, Vested and exercisable Increase (decrease) through Remeasurement leases liabilities arising from financing activities. Increase (decrease) through Remeasurement leases liabilities arising from financing activities Remeasurement - leases Trade and other receivables [abstract] Number of operating segment. Number Of Operating Segment Number of operating segments Interest received, classified as operating activities Interest received Disclosure of commitments and contingent liabilities [text block] Commitments and contingencies Disclosure of terms and conditions of share-based payment arrangement [table] Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Table] Percentage of reasonably possible increase decrease in risk assumption in foreign exchange rate. Percentage Of Reasonably Possible Increase Decrease In Risk Assumption In Foreign Exchange Rate Percentage of increase decrease in foreign exchange rate Additional paid-in capital [member] Other Contributed Capital Number of other equity instruments granted in share-based payment arrangement Number of warrants, granted Earnings per share [abstract] Loss per share, attributable to shareholders of the parent: Equity attributable to owners of parent [member] Equity Attributable to Shareholders of the Parent Oatly AB. Oatly A B [Member] Oatly AB Convertible notes share price. Convertible Notes Share Price Share price at valuation date Lease term. Lease Term Lease term Additional paid-in capital Other contributed capital Classes of intangible assets other than goodwill [domain] Production plants two. Production Plants Two [Member] Production Plants Two Increase decrease through share issue in subsidiary. Increase Decrease Through Share Issue In Subsidiary Share issue in subsidiary Unobservable inputs [domain] Aging of current trade receivables. Aging Of Current Trade Receivables [Line Items] Aging Of Current Trade Receivables [Line Items] Non derivative financial liabilities. Non Derivative Financial Liabilities Total non-derivatives Disclosure of property, plant and equipment [text block] Property, plant and equipment Comprehensive income, attributable to owners of parent Shareholders of the parent Total comprehensive income, attributable to owners of parent Adjustments for finance income (cost) Finance (income) and expenses, net Inventory write-down Inventories, at net realizable value Write-down of inventories Oatly Singapore Operations & Supply Pte Ltd Oatly Singapore Operations And Supply Pte Ltd [Member] Oatly Singapore Operations & Supply Pte Ltd Current derivative financial assets Derivatives (part of Other current receivables) Derivatives (part of other current receivables) Exercise price, share options granted Exercise price Disclosure of basis of consolidation [text block] Basis of consolidation Disclosure of detailed information about property, plant and equipment [text block] Summary of Property, Plant and Equipment Explanation Of Seasonality [Text Block] Description of seasonality. Seasonality Aging of current trade receivables. Aging Of Current Trade Receivables [Table] Aging Of Current Trade Receivables [Table] Percentage of exposure to currency risks. Percentage Of Exposure To Currency Risks Percentage of exposure to currency risks Products and services [axis] Products and services [axis] Issuance of promissory note related to non current asset held for sale which were sold. Issuance Of Promissory Note Related To Non Current Asset Held For Sale Which Were Sold Issuance of promissory note related to non current asset held for sale which were sold Disclosure of reconciliation of liabilities arising from financing activities [abstract] Increase (decrease) in fair value measurement, liabilities Changes in fair value Total increase (decrease) in fair value measurement, liabilities Fair value reserve related to convertible notes Fair Value Reserve Related to Convertible Notes Fair value reserve related to convertible notes Wages and salaries Salaries and other remuneration Description of accounting policy for decommissioning, restoration and rehabilitation provisions [text block] Provision for restoration costs Percentage addition of promissory note in interest rate each year Percentage Addition Of Promissory Note In Interest Rate Each Year Percentage addition of promissory note in interest rate each year Description of accounting policy for non-current assets or disposal groups classified as held for sale [text block] Non-current assets held for sale Disclosure of leases. Disclosure Of Leases [Line Items] Disclosure Of Leases [Line Items] Preliminary percentage of collective consolidation level. Preliminary Percentage Of Collective Consolidation Level Preliminary percentage of collective consolidation level Equity and liabilities TOTAL EQUITY AND LIABILITIES Total sales consideration received. Total Sales Consideration Received Consideration received EUR/SEK exchange rate. E U R Vs S E K Exchange Rate [Member] EUR/SEK Exchange Rate Lund. Lund [Member] Lund, Sweden Additions to right-of-use assets Increases Additions to right-of-use assets Accrued expenses abstract. Accrued Expenses [Abstract] Key management personnel compensation social security costs. Key management personnel compensation social security costs Social security costs Cybersecurity Risk Management Positions or Committees Responsible [Text Block] Types of antidilutive instruments [domain] Description of accounting policy for recognition of revenue [text block] Revenue recognition Derivative financial liabilities included undiscounted cash flows. Derivative Financial Liabilities Included Undiscounted Cash Flows Total derivatives Trade receivables. Trade Receivables [Table] Trade Receivables [Table] Disclosure of analysis of single amount of discontinued operations [table] Types of risks [axis] Types of risks [axis] Decommissioning and other exit costs. Decommissioning And Other Exit Costs Decommissioning and other exit costs Description of accounting policy for financial liabilities [text block] Liabilities to credit institutions The disclosure of detailed information about inventories. Disclosure Of Detailed Information About Inventories Summary of Inventories Finance income Finance income Total finance income Adjustments for share-based payments Share-based compensation Treasury shares [member] Treasury Shares Disclosure of maturity analysis for derivative financial liabilities [abstract] Derivatives Financial assets pledged as collateral for liabilities or contingent liabilities Trade receivables and inventories Assets pledged as security Impairment charge related to shared assets. Impairment Charge Related to Shared Assets Impairment charge related to shared assets Expected dividend, share options granted Expected dividend yield Current raw materials and current production supplies Raw materials and consumables Total current raw materials and current production supplies Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Weighted average exercise price of share options stock options exchanged to RSU. Weighted Average Exercise Price Of Share Options Stock Options Exchanged To RSU Weighted average exercise price, Stock options exchanged to RSUs Net foreign exchange gains loss classified as finance income expense Net foreign exchange gains loss classified as finance income expense. Net foreign exchange difference Lowest Potential Reset Price March 2024 Lowest Potential Reset Price March 2024 Lowest potential reset price March 2024 Temporary difference, unused tax losses and unused tax credits [domain] Country of registration and operations. Country Of Registration And Operations Country/place of registration and operations Interest paid, classified as operating activities Interest paid Interest paid Description of accounting policy for earnings per share [text block] Loss per share Disclosure of employee benefits [text block] Employee and Personnel Costs Past due more than three months. Past Due More Than Three Months [Member] 91- Days Past Due Disclosure of maturity analysis of operating lease payments [line items] Interest rate swap contract [member] Interest rate swap contract [member] Number of G shares. Number Of G Shares [Member] Number of G Shares Non-current provisions [abstract] Current lease liabilities Lease liabilities Current lease liabilities (Note 16) Granted On November Two Thousand Twenty Four [Member] November 2024. November 2024 Description of accounting policy for leases [text block] Leases Classes of share capital [domain] Long-term deposits Deposits Description of risk free interest rate of convertible notes . Description Of Risk Free Interest Rate Of Convertible Notes Risk-free interest rate Defined benefit plans [domain] Disclosure of detailed information about depreciation and amortization expenses. Disclosure Of Detailed Information About Depreciation And Amortization Expenses Explanatory Summary of Depreciation and Amortization The disclosure detailed information about other non current receivables. Disclosure Of Detailed Information About Other Non Current Receivables Summary of Other Non-Current Receivables Litigation settlement date. Litigation Settlement Date Litigation settlement date Exchange rate differences recognized in other operating income expense. Exchange Rate Differences Recognized In Other Operating Income Expense Exchange rate differences (Note 11) Other operating income and (expenses), net (Note 9) R&D premises. R And D Premises [Member] R&D Premises Disclosure of share-based payment arrangements [text block] Share-based compensation Swedish notes. Swedish Notes [member] Swedish Notes Optional sustainable revolving credit facility multicurrency revolving credit facility. Optional Sustainable Revolving Credit Facility Multicurrency Revolving Credit Facility Optional sustainable multicurrency revolving credit facility Impairment loss recognised in other comprehensive income, intangible assets other than goodwill Impairment Impairment loss recognised in other comprehensive income, intangible assets other than goodwill Disclosure of provisions [text block] Provisions Disclosure of detailed information about intangible assets [line items] Disclosure Of Intangible Assets [Line Items] Disclosure of detailed information about financial instruments [table] Disclosure Of Financial Instruments [Table] Profit Loss Attributable To Noncontrolling Interest Profit loss attributable to noncontrolling interest. Non-controlling interests Disclosure of terms and conditions of share-based payment arrangement [abstract] Expense from share-based payment transactions with employees Share-based compensation expense Expenses arising from share-based payment transactions Other receivables noncurrent. Other Receivables Noncurrent Other receivables NETHERLANDS The Netherlands UNITED STATES US Unrecognized tax effect related to transaction cost. Unrecognized Tax Effect Related To Transaction Cost Unrecognized tax effect related to transaction cost Classes of share capital [axis] Classes of share capital [axis] Types of share-based payment arrangements [domain] Total for all subsidiaries [member] Subsidiaries Disclosure of other non-current liabilities [text block] Other non-current liabilities Significant accounting judgments estimates and assessments. Significant Accounting Judgments Estimates And Assessments [Line Items] Significant Accounting Judgments Estimates And Assessments [Line Items] Description of accounting policy for issued capital [text block] Share capital Sharebased payment award vesting period. Sharebased Payment Award Vesting Period Vesting period Major customers [domain] GBP/SEK exchange rate. G B P Vs S E K Exchange Rate [Member] GBP/SEK Exchange Rate Commitments and contingencies. Commitments And Contingencies [Table] Commitments And Contingencies [Table] Increase in loss before tax due to changes in fair value from short-term investments Increase In Loss Before Tax Due To Changes In Fair Value From Short Term Investments Impact on loss before tax, increase Net loss Attributable to: Shareholders of the parent Loss for the year, attributable to the shareholders of the parent Profit/(loss) for the year Volatility increase in fair value of convertible notes. Volatility increase in fair value of convertible notes Volatility increase 10 percentage points Interest expense on lease liabilities Interest expenses on lease liabilities Interest expense (included in finance expenses) Equity attributable to owners of parent Equity attributable to shareholders of the parent Promissory notes receivable effective interest rate capitalized semi annually. Promissory Notes Receivable Effective Interest Rate Capitalized Semi Annually Effective interest rate capitalized semi annually Disclosure of detailed information about liabilities to credit institutions explanatory. Disclosure Of Detailed Information About Liabilities To Credit Institutions Explanatory Summary of Liabilities to Credit Institutions Convertible notes. Convertible Notes [Table] Computer software [member] Capitalized Software Discount rate applied to cash flow projections Pre-tax discount rate Pre-tax discount rate used Types of interest rates [axis] Types of interest rates [axis] Conversion price, terms of description. Conversion price, terms of description Oatly Netherlands Operation & Supply BV Oatly Netherlands Operation And Supply B V [Member] Oatly Netherlands Operation & Supply BV Contingent consideration paid. Contingent Consideration Paid Contingent consideration paid Amount company is contractually obligated to pay to holders of convertible notes at maturity. Amount Company Is Contractually Obligated To Pay To Holders Of Convertible Notes At Maturity Amount the Company is contractually obligated to pay to holders of the Convertible Notes at maturity Floating interest rate [member] Floating Interest Rate Gains (losses) on exchange differences on translation of foreign operations, net of tax Exchange differences from translation of foreign operations Description of accounting policy for trade and other receivables [text block] Trade receivables Building one. Building One [Member] Building One Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Events after reporting period. Events After Reporting Period [Member] Events After Reporting Period Increase (decrease) through financing cash flows, liabilities arising from financing activities Cash flows Number of share options stock options exchanged to RSU. Number Of Share Options Stock Options Exchanged To RSU Number of employee stock options, Stock options exchanged to RSUs Costs relating to closure of facility expected payment period. Costs Relating To Closure Of Facility Expected Payment Period Costs relating to closure of facility expected payment period Closure of production facility Closure of production facility. Closure of production facility Asset impairment charges and other costs related to discontinued construction of production facilities. Asset impairment charges and other costs related to discontinued construction of production facilities Asset impairment charges and other costs related to discontinued construction of production facilities Asset impairment charges and other costs related to discontinued construction of production facilities Selling, general and administrative expense Total selling, general and administrative expense Selling, general and administrative expenses Lowest potential reset price March 2025. Lowest Potential Reset Price March 2025 Lowest potential reset price March 2025 Additional allowance recognised in profit or loss, allowance account for credit losses of financial assets Increase of allowance recognized in statement of operations during the year Disclosure of events after reporting period [text block] Events after the end of the reporting period Capitalised development expenditure [member] Capitalized Development Expenditure Number of share options exercisable in share-based payment arrangement Vested and exercisable as of June 30, 2025 Direct ownership. Direct Ownership [Member] Direct Ownership Increase (decrease) through net exchange differences, allowance account for credit losses of financial assets Translation differences Impact of decreasing expected term. Impact Of Decreasing Expected Term Impact of decreasing expected term Strategic Review of Greater China Business Strategic review of greater china business. Strategic review of Greater China business Production Facilities [Member] Production facilities. Production Facilities Operating segments [member] Operating Segments Members of key management, other employees and entity controlled by related parties. Members Of Key Management Other Employees And Entity Controlled By Related Parties [Member] Members of Key Management, Other Employees and Entity Controlled By Related Parties Number of share options outstanding in share-based payment arrangement Number of employee stock options, Ending balance Number of employee stock options, Beginning balance Plant and machinery. Plant And Machinery [Member] Plant and Machinery Entity Address, City or Town Entity Address, City or Town Increase (decrease) through net exchange differences, intangible assets and goodwill Exchange differences Cap. CAP [Member] CAP Disclosure of financial risk management. Disclosure Of Financial Risk Management [Abstract] Realizing period of current asset. Realizing Period Of Current Asset Realizing period of current asset Current value added tax receivables Value added tax Other property, plant and equipment [member] Plant Text Block Text Block1 [Abstract] Indirect ownership. Indirect Ownership [Member] Indirect Ownership Non-current assets Total non-current assets Prepaid production and warehouse expenses. Prepaid Production And Warehouse Expenses Prepaid production and warehouse expenses Information about lessee's exposure arising from extension options and termination options Description of lease extension option Disclosure of temporary difference, unused tax losses and unused tax credits [table] Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Table] Disclosure of other non current liabilities abstract. Disclosure Of Other Non Current Liabilities [Abstract] Incentive award plan two thousand and twenty one. 2021 Plan Intangible assets and goodwill Ending balance Beginning balance Intangible assets Total intangible assets and goodwill Accrued logistic expenses. Accrued logistic expenses [Member] Accrued Logistic Expenses Levels of fair value hierarchy [axis] Levels of fair value hierarchy [axis] Measurement [domain] Sales channels [axis] Sales channels [axis] SEK/GBP. S E K G B P [Member] SEK/GBP EIF facility. E I F Facility [Member] EIF Facility Not later than three months [member] Less than 3 Months Stock options member. Stock Options [Member] Stock Options Disclosure of classes of share capital [line items] Disclosure Of Classes Of Share Capital [Line Items] Percentage of impact of increasing volatility on convertible notes Percentage points of impact of increasing volatility on convertible notes Restructuring provision [member] Restructuring Provision for Restructuring Costs Depreciation and amortisation expense [abstract] Currency in which information is displayed [axis] Currency in which information is displayed [axis] Statement of changes in equity [abstract] Noncurrent receivables. Noncurrent Receivables [line items] Profit (loss) Net loss Loss for the period Loss for the period The company may require conversion of the convertible notes if the last reported sale price of the company adse equals or exceeds 200%. Conversion of the convertible notes if the last reported sale price of the company ADSE equals or exceeds 200% Impact of increasing expected term. Impact Of Increasing Expected Term Impact of increasing expected term Non-current provision for decommissioning, restoration and rehabilitation costs Non-current, Decommissioning Significant accounting policies. Significant Accounting Policies [Table] Significant Accounting Policies [Table] Aggregate principal amount of convertible debt. Aggregate Principal Amount of Convertible Debt Aggregate principal amount of convertible debt SEK/CNY exchange rate. S E K Vs C N Y Exchange Rate [Member] SEK/CNY Exchange Rate Document Period End Date Document Period End Date Impairment loss recognised in profit or loss, trade receivables Impairments loss for outstanding trade receivables Nine point two five fonvertible senior PIK notes due two thousand twenty eight. Nine Point Two Five Convertible Senior PIK Notes Due Two Thousand Twenty Eight [Member] 9.25% Convertible Senior PIK Notes due 2028 Disclosure of entity's operating segments [text block] Segment information Non-current restructuring provision Non-current, Restructuring Disclosure of non-current assets or disposal groups classified as held for sale [text block] Non-current assets held for sale Sweden, Kronor SEK Associates [axis] Associates [axis] Categories of related parties [axis] Categories of related parties [axis] Disclosure of finance income and expenses. Disclosure of finance income and expenses [Table] Disclosure of non-adjusting events after reporting period [table] Disclosure of tax loss carryforwards. Disclosure Of Tax Loss Carryforwards Explanatory Summary of Tax Loss Carryforwards Disclosure of maturity analysis of operating lease payments [table] Current finished goods Finished goods Right-of-use assets Ending balance Beginning balance Right-of-use assets Right-of-use assets (Note 16) Fair value changes on convertible notes. Fair Value Changes On Convertible Notes Fair value changes on Convertible Notes Financial assets, at fair value Derivatives Issued capital Share capital Total issued capital Other Countries. Other Countries [Member] Other Disclosure of nature and extent of risks arising from financial instruments [line items] Disclosure Of Nature And Extent Of Risks Arising From Financial Instruments [Line Items] Tax expense (income) Total tax expense (income) Income tax (expense)/benefit Income tax (expense)/benefit reported in the consolidated statement of operations Income tax expense Total tax expense Lowest potential reset price March 2024 before customary anti dilution adjustments Lowest Potential Reset Price March 2024 Before Customary Anti Dilution Adjustments Lowest potential reset price March 2024 before customary anti dilution adjustments Convertible debt original discount rate. Convertible Debt Original Discount Rate Convertible debt original discount rate Fair value reserve. Fair Value Reserve Disclosure of detailed information about trade receivables. Disclosure Of Detailed Information About Trade Receivables Table [Text Block] Summary of Trade Receivables Currency derivatives. Currency Derivatives Currency derivatives Increase in loss before tax due to changes in fair value from short-term investments. Decrease In Loss Before Tax Due To Changes In Fair Value From Short Term Investments Impact on loss before tax, decrease Cybersecurity Risk Management, Strategy, and Governance [Line Items] Compliance with IFRSs if applied for interim financial report Compliance with IFRSs if applied for interim financial report Convertible debt interest rate. Convertible Debt Interest Rate Convertible debt interest rate Sustainability loan. Sustainability Loan Sustainability loan Disclosure of impairment loss and reversal of impairment loss [table] Disclosure of noncurrent provisions. Disclosure Of Noncurrent Provisions [Table] Disclosure Of Noncurrent Provisions [Table] Disclosure Of Employee Benefits Abstract Disclosure Of Employee Benefits [Abstract] Amortisation, intangible assets other than goodwill Amortization charge Amortisation, intangible assets other than goodwill Total depreciation/amortization/impairment by function Oatly Inc Oatly Inc [Member] Oatly Inc Products and services [domain] Accrued expenses line items. Accrued Expenses [Line Items] Accrued Expenses [Line Items] Other current payables Other Classes of financial assets [domain] Disclosure of reconciliation of changes in loss allowance and explanation of changes in gross carrying amount for financial instruments [text block] Summary of Allowance for Expected Credit Losses of Trade Receivables Losses on change in fair value of derivatives Loss in change in fair value Losses on change in fair value of derivatives Intangible assets under development [member] Ongoing Development Costs Number of B shares. Number Of B Shares [Member] Number of B Shares Employee benefits expenses by function. Employee Benefits Expenses By Function [Line Items] Employee Benefits Expenses By Function [Line Items] Increase decrease in risk exposure. Increase Decrease In Risk Exposure Total Earnings per share [table] Earnings Per Share [Table] Percentage of impact of decreasing expected volatility. Percentage Of Impact Of Decreasing Expected Volatility Percentage of impact of decreasing expected volatility Impairment charges related to discontinued construction of certain production facilities. Impairment charges related to discontinued construction of certain production facilities Impairment charges related to discontinued construction of certain production facilities (Note 14,15,16,17,21) Adjustments for increase (decrease) in trade and other payables Increase/(Decrease) in trade payables, other current liabilities, accrued expenses Increase (decrease) through transfers, property, plant and equipment Reclassifications Classes of other provisions [axis] Classes of other provisions [axis] Disclosure of detailed information about borrowings [table] Securities Act File Number Entity File Number The disclosure of convertible notes. Disclosure of Convertible Notes Explanatory Convertible Notes Commitments and contingencies. Commitments And Contingencies [Abstract] Elimination of intersegment amounts [member] Eliminations Sensitivity analysis for types of market risk [text block] Summary of Sensitivity Analysis Decrease through shareholder loans arising from conversion to shares. Decrease Through Shareholder Loans Arising From Conversion To Shares Converted to shares Cover [Abstract] Disclosure of general information about financial statements [text block] Corporate information Past due more than one month but less than two months. Past Due More Than One Month But Less Than Two Months [Member] 31-60 Days Past Due Disclosure of nature and extent of risks arising from financial instruments [text block] Summary of Exposure to Foreign Currency Risk Unused provision reversed, other provisions Reversal of non-utilized amounts Reversal of non-utilized amounts Disclosure of quantitative information about right-of-use assets [line items] Disclosure Of Quantitative Information About Rightofuse Assets [Line Items] Shareholder loan. Shareholder Loans [Abstract] Number of operating segments of which impairment tests is to be performed for non-financial assets. Number Of Operating Segments of which Impairment Tests is to be Performed for Non-Financial Assets Number of operating segments of which impairment tests is to be performed for non-financial assets Production facility in Singapore. Production Facility in Singapore [Member] Production Facility in Singapore SINGAPORE Singapore Oatly Food Co Ltd Oatly Food Co Ltd [Member] Oatly Food Co Ltd Percentage amount by which value assigned to pre-tax discount rate increase in order for recoverable amount to be equal to carrying amount. Percentage Amount By Which value assigned to pre-tax discount rate increase in order for recoverable amount to be equal to carrying amount Percentage amount by which value assigned to pre-tax discount rate increase in order for recoverable amount to be equal to carrying amount Description of accounting policy for employee benefits [text block] Employee benefits Cost of inventories recognised as expense during period Cost of inventories recognized as expense during period Currency risk [member] Currency Risk Percentage of impact of decreasing Risk-free interest rate on convertible notes. Percentage point of impact of decreasing Risk-free interest rate on convertible notes Non derivate financial liabilities undiscounted cashflows. Non Derivate Financial Liabilities Undiscounted Cashflows Total non-derivatives Other comprehensive income [abstract] Other comprehensive income/(loss): Ogden and Utah. Ogden And Utah [Member] Ogden and Utah Level 1 of fair value hierarchy [member] Level 1 Disclosure of related party [text block] Related party disclosures Accrued variable consideration. Accrued Variable Consideration [Member] Accrued Variable Consideration Current liabilities [abstract] Current liabilities Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Carrying amount, accumulated depreciation, amortisation and impairment and gross carrying amount [axis] Accumulated increase (decrease) in fair value of financial liability, attributable to changes in credit risk of liability Includes: Cumulative fair value changes on Convertible Notes attributable to changes in credit risk, recognized in the fair value reserve The disclosure of detailed information about significant investments in subsidiaries. Disclosure Of Detailed Information About Significant Investments In Subsidiaries Explanatory Summary of Principal Subsidiaries Disclosure of depreciation, amortization and impairment. Disclosure Of Depreciation Amortization And Impairment [Line Items] Disclosure Of Depreciation Amortization And Impairment [Line Items] YYF transaction. YYF transaction [Member] YYF Transaction Description of vesting requirements for share-based payment arrangement Awards vesting description Remaining Lease Payments Remaining lease payments. Impact of discounting remaining lease payments Lowest potential reset price March 2025 before customary anti dilution adjustments. Lowest Potential Reset Price March 2025 Before Customary Anti Dilution Adjustments Lowest potential reset price March 2025 before customary anti dilution adjustments Current tax assets, current Current tax assets Disclosure of number and weighted average exercise prices of share options [text block] Summary of Number and Exercise Prices of Employee Stock Options Disclosure of attribution of expenses by nature to their function [text block] Summary of Employee Benefits Expenses by Function GBP/EUR exchange rate. G B P Vs E U R Exchange Rate [Member] GBP/EUR Exchange Rate Counterparties [domain] Borrowing costs recognised as expense Transaction costs Disclosure of earnings per share [text block] Loss per share Share capital par value. Share Capital Par Value Par value per share Non-current derivative financial assets Derivatives (part of Other non-current receivables') Number of shares outstanding Number of shares outstanding at end of period Number of shares outstanding at beginning of period Ordinary shares outstanding The disclosure of detailed information about revenue and earnings before interest, taxes, depreciation, and amortization. Disclosure Of Detailed Information About Revenue And Earnings Before Interest Taxes Depreciation And Amortization Explanatory Summary of Revenue Adjusted EBITDA and EBITDA Adjustments for decrease (increase) in inventories Increase in inventories Sales channels [domain] SGD/CNY. S G D C N Y [Member] SGD/CNY Other disposals of assets [member] Sale of Manufacturing Facilities Description of accounting policy for initial public offering costs explanatory. Description Of Accounting Policy For Initial Public Offering Costs Explanatory Initial public offering costs Floor [Member] Floor. Floor Disclosure of terms and conditions of share-based payment arrangement [line items] Disclosure Of Terms And Conditions Of Sharebased Payment Arrangement [Line Items] Current investments Short-term investments Revenue from external customers. Revenue From External Customers [Member] Revenue from External Customers Increase (decrease) through net exchange differences, property, plant and equipment Exchange differences Significant accounting judgments estimates and assessments. Significant Accounting Judgments Estimates And Assessments [Table] Significant Accounting Judgments Estimates And Assessments [Table] Buyer Parent. Buyer Parent Member Buyer Parent Volatility decrease in fair value of convertible notes. Volatility decrease in fair value of convertible notes Volatility decrease 10 percentage points Later than one year and not later than two years [member] Between 1 and 2 Years Foreign exchange gain (loss) Exchange-rate differences—net Impact on loss before tax, increase/decrease Other comprehensive income, net of tax, change in fair value of financial liability attributable to change in credit risk of liability Change in fair value recognized in consolidated statement of other comprehensive loss Fair value changes on Convertible Notes attributable to changes in credit risks Change in fair value recognized in consolidated statement of other comprehensive loss Fair value changes on Convertible Notes attributable to changes in credit risks Cybersecurity Risk Management Processes Integrated [Flag] Increase (decrease) in cash and cash equivalents before effect of exchange rate changes Net increase (decrease) in cash and cash equivalents before effect of exchange rate changes Net decrease in cash and cash equivalents Description of accounting policy for financial instruments [text block] Financial instruments Profit or loss [abstract] Share price decrease in fair value of convertible notes. Share price decrease in fair value of convertible notes Share price decrease 30% Disclosure of analysis of single amount of discontinued operations [line items] Statement of financial position [abstract] Disclosure of revenue from contracts with customers [text block] Summary of Revenue from external customers Gross profit Gross profit Gross profit Building Two [Member] Building Two Building two. Financial assets at fair value through profit or loss [abstract] Financial assets Cash Outflows Relating To Closure Production Facility Singapore Cash outflows relating to closure production facility singapore. Cash outflows relating to closure production facility Singapore Disclosure of detailed information about carrying amounts by currency. Disclosure Of Detailed Information About Carrying Amounts By Currency Summary of Carrying Amounts By Currency Current assets [abstract] Current assets The disclosure of detailed information about the effect of changes in foreign exchange rates. Disclosure Of Detailed Information About Effect Of Changes In Foreign Exchange Rates Explanatory Disclosure of exchange rate differences recognized Other comprehensive income Other comprehensive loss for the year Other comprehensive income (loss) Total other comprehensive income/(loss) for the period Current advances to suppliers Advance payments to vendors Classes of assets [domain] Asia [Member] Asia Weighted average exercise price of share options granted in share-based payment arrangement Weighted average exercise price, Granted Other intangible assets [member] Other Intangible Assets Components of equity [axis] Components of equity [axis] Received sales price allocation. Received Sales Price Allocation Sales price received in cash Purchase price received Types of antidilutive instruments [axis] Disclosure of detailed information about reconciliation of tax expense and the accounting loss. Disclosure Of Detailed Information About Reconciliation Of Tax Expense And The Accounting Loss Explanatory Summary of Reconciliation of Tax (Expense) Benefit and Accounting Loss Selling, general and administrative expense [member] Selling, General and Administrative Expenses Employee benefits settlement period. Employee Benefits Settlement Period Employee benefits settlement period Temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements for which deferred tax liabilities have not been recognised Deferred income tax asset Basic earnings (loss) per share Basic earnings/(loss) per share, US $ Total basic earnings (loss) per share Basic loss per share, U.S. $ Cybersecurity Risk Management Processes Integrated [Text Block] Maximum borrowing capacity. Maximum Borrowing Capacity Maximum borrowing capacity Business combinations [domain] Redemption of shares. Redemption Of Shares Redemption of shares Non-current assets or disposal groups classified as held for sale or as held for distribution to owners [abstract] Litigation commitments. Litigation Commitments Litigation commitments Purchase of intangible assets, classified as investing activities Purchase of intangible assets Purchase of intangible assets Lease liabilities [member] Leases Lease Liabilities Gain (loss) recognised on measurement to fair value less costs to sell or on disposal of assets or disposal groups constituting discontinued operation Impairment charge related to assets held for sale (Note 34) Impairment recognized to redude carrying amount of assets to their fair value less costs Impairment charge related to assets held for sale (Note 34) Adjustments for depreciation and amortisation expense Depreciation of property, plant and equipment and right-of-use assets and amortization of intangible assets Attribution of expenses by nature to their function [axis] Attribution of expenses by nature to their function [axis] ADS to ordinary share ratio. ADS to Ordinary Share Ratio ADS to ordinary share ratio Received sales price consideration in the form of issued promissory note. Received Sales Price Consideration in the Form of Issued Promissory Note Consideration received in the form of promissory note Description of accounting policy for property, plant and equipment [text block] Tangible assets Current trade receivables Trade receivables Trade receivables—net Carrying amounts, by currency Accounts receivables Repayment of advances and loans conversion to ordinary shares. Repayment Of Advances And Loans Conversion To Ordinary Shares Repayment of shareholder loans in shares Business combinations [axis] Maturity [domain] Single external customer. Single External Customer [Member] Single External Customer Liabilities arising from financing activities Balance Balance Increase Decrease In Loss Before Tax Due To Borrowings Adjustment In Foreign Exchange Rate Increase decrease in loss before tax due to borrowings adjustment in foreign exchange rate. Impact on loss before tax Current inventories Inventories Total Disclosure of effect of changes in foreign exchange rates [text block] Net Exchange Rate Differences Weighted average fair value at measurement date other equity instruments forfeited. Weighted Average Fair Value At Measurement Date Other Equity Instruments Forfeited Grant date fair value, Forfeited Number Of Instruments Granted In Exchange For Stock Options Number Of Instruments Granted In Exchange For Stock Options Number of instruments granted in exchange for stock options Number of share options granted Disclosure of detailed information about convertible notes Disclosure Of Detailed Information About Convertible Notes Explanatory Summary of Convertible Notes Derivatives [member] Derivatives Limitations on draw down facilities relating with covenants. Limitations On Draw Down Facilities Relating With Covenants Limitations on draw down facilities relating with covenants Disclosure of credit risk [text block] Summary of Aging of Groups Trade Receivables Potential ordinary share transactions [member] ADS Ratio Change Ordinary shares [member] Ordinary Shares Decrease in loss before tax due to borrowings adjustment to interest rate basis. Decrease In Loss Before Tax Due To Borrowings Adjustment To Interest Rate Basis Impact on loss before tax, decrease Maturity [axis] Maturity [axis] Weighted average number of ordinary shares used in calculating basic earnings per share Basic Weighted average number of ordinary shares Current trade receivables line items. Current Trade Receivables [Line Items] Current Trade Receivables [Line Items] Promissory note. Promissory Note [Member] Promissory Note Geographical areas [domain] Base Rate With Floor Rate. Base Rate With Floor Rate [Member] Base Rate with Floor Rate C M B Credit Facility [Member] C M B Credit Facility [Member] CMB Credit Facility Purchase obligations. Purchase Obligations Purchase obligations Received sales price consideration in cash. Received Sales Price Consideration in Cash Received sales price consideration in cash Weighted average fair value at measurement date other equity instruments outstanding. Weighted Average Fair Value At Measurement Date Other Equity Instruments Outstanding Grant date fair value, Ending balance Grant date fair value, Beginning balance Percentage amount by which value assigned to terminal growth rate must decrease in order for unit's recoverable amount to be equal to carrying amount. Percentage Amount by which Value Assigned to Terminal Growth Rate Must Decrease in Order for Unit's Recoverable Amount to be Equal to Carrying Amount Percentage amount by which value assigned to terminal growth rate must decrease in order for unit's recoverable amount to be equal to carrying amount Convertible notes interest rate Convertible Notes Interest Rate Convertible notes interest rate Level 3 of fair value hierarchy [member] Level 3 Granted On May Two Thousand Twenty Four [Member] May 2024. May 2024 Gains (losses) on change in fair value of derivatives Fair value changes derivatives Fair value changes on derivatives Net gains (losses) on change in fair value of derivatives Disclosure of temporary difference, unused tax losses and unused tax credits [line items] Disclosure Of Temporary Difference Unused Tax Losses And Unused Tax Credits [Line Items] Non-current liabilities [abstract] Non-current liabilities Term loan B credit agreement. Term Loan B Credit Agreement [member] Term Loan B Credit Agreement TLB Credit Agreement Subsidiaries [axis] Subsidiaries [axis] Disclosure of detailed information about shareholder loans explanatory. Disclosure Of Detailed Information About Shareholder Loans Explanatory Shareholder loans Gross carrying amount [member] Carrying Amount Number of other equity instruments exercised or vested in share-based payment arrangement Number of instruments, Vested North America [Member] North America Other receivables current. Other Receivables Current Other Current tax liabilities, current Current tax liabilities Properties. Properties [Member] Properties Average effective tax rate Total average effective tax rate Effective tax rate Expected increase (decrease) in commodity cost due to increase in general commodity cost price. Expected Increase Decrease In Commodity Cost Due To Increase In General Commodity Cost Price Expected increase in commodity cost due to increase in general commodity cost price Institutional Investors [Member] Institutional Investors [Member] Institutional Investors Changes in working capital. Changes In Working Capital [Abstract] Changes in working capital: Europe and International. Europe And International [Member] Europe & International Currency risk SEK/USD [Member] currency risk SEK/USD. Currency Risk SEK/USD Shares issued in exercise of warrants. Shares Issued In Exercise Of Warrants Shares issued in exercise of warrants Description of accounting policy for provisions [text block] Provisions Components of other comprehensive income that will be reclassified to profit or loss, net of tax [abstract] Items that may be subsequently reclassified to the consolidated statement of operations (net of tax): Proceeds from sales of property, plant and equipment, classified as investing activities Proceeds from sales of property, plant and equipment Disclosure of subsidiaries [table] Disclosure Of Significant Investments In Subsidiaries [Table] Granted on May Two Thousand Twenty One. Granted On May Two Thousand Twenty One [Member] May 2021 Granted May Increase (decrease) through cancellation leases liabilities arising from financing activities. Increase (decrease) through cancellation leases liabilities arising from financing activities Cancellation - leases Counterparties [axis] Disclosure of fair value of financial instruments [text block] Summary of Fair Value of Financial Instruments Include Interest Rate Swaps, Present Value of Estimated Future Cash Flows Disclosure of operating segments [table] Disclosure Of Operating Segments [Table] The number of operating segments aggregated to form reportable segments. Number Of Operating Segments Aggregated To From Reportable Segments Number of operating segments aggregated to form reportable segments Number of share options forfeited in share-based payment arrangement Number of employee stock options, Forfeited Cash flow extrapolated period using estimated some growth rate percentage. Cash Flow Extrapolated Period Using Estimated Some Growth Rate Percentage Cash flow extrapolated period using estimated some growth rate percentage Depreciation expense Depreciation expense Liabilities [abstract] Liabilities Liabilities in the consolidated statement of financial position Costs related to the YYF transaction. Costs Related To The YYF Transaction Costs related to the YYF Transaction The disclosure of consolidated statement of financial position amounts relating to leases. Disclosure Of Consolidated Statement Of Financial Position Amounts Relating To Leases Explanatory Summary of Consolidated Statement of Financial Position Amounts Relating to Leases North America and Greater China segments. North America and Greater China segments [Member] North America and Greater China Segment Cash flows from (used in) financing activities [abstract] Financing activities Prepaid financing expenses. Prepaid Financing Expenses Prepaid financing expenses Disclosure of accounting judgements and estimates [text block] Significant accounting judgments, estimates and assessments Description of accounting policy for income tax [text block] Taxes Range [domain] Credit loss reserve recognized. Credit Loss Reserve Recognized Credit loss reserve recognized Statement of changes in equity [line items] Statement Of Changes In Equity [Line Items] Property, plant and equipment Ending balance Beginning balance Property, plant and equipment Total property, plant and equipment Property, plant and equipment (Note 15) Retirements, property, plant and equipment Sold Number of share options granted in share-based payment arrangement Number of share options granted The Disclosure of detailed information about other current receivables Disclosure Of Detailed Information About Other Current Receivables Summary Of Other Current Receivables GBP/EUR. G B P E U R [Member] GBP/EUR Number of supplier contracts. Number Of Supplier Contracts Number of supplier contracts Cash Outflows Relating To Organizational Restructuring Cash outflows relating to organizational restructuring. Cash outflows relating to organizational restructuring Liabilities to credit institutions. Liabilities To Credit Institutions Liabilities to credit institutions Retail channel. Retail Channel [Member] Retail Trade receivables [member] Trade receivables [member] Trade Receivables Corporates. Corporates [Member] Corporate Classes of other provisions [domain] Weighted average fair value at measurement date, other equity instruments granted Grant date fair value, Granted Oy Oatly AB. Oy Oatly A B [Member] Oy Oatly AB Accrued personnel expenses member. Accrued Personnel Expenses [Member] Accrued Personnel Expenses Lease commencement date. Lease Commencement Date Lease commencement date Agreement reset term. Agreement reset term Sensitivity analysis for translation exposure risk reasonably possible change in risk variable impact on loss before tax due to ten percent increase decrease. Sensitivity Analysis For Translation Exposure Risk Reasonably Possible Change In Risk Variable Impact On Loss Before Tax Due To Ten Percent Increase Decrease Impact on loss before tax Disclosure of detailed information about property, plant and equipment [abstract] U.S Notes [member] U.S Notes [member] U.S. Notes Description of maximum term of options granted for share-based payment arrangement Exercise term Fixtures and fittings [member] Fixtures Current provisions Provisions Total current provisions At December 31, 2024 At June 30, 2025 SEK/SGD. S E K S G D [Member] SEK/SGD Post-employment benefit expense, defined contribution plans Premium expenses Pension and post-employment benefits UNITED KINGDOM UK Great Britain Income tax relating to components of other comprehensive income Tax effect relating to net investment in foreign operations recognized in Other comprehensive loss Aggregated income tax relating to components of other comprehensive income Profit (loss), attributable to non-controlling interests Non-controlling interests Other adjustments to reconcile profit (loss) Other Disclosure of detailed information about financial instruments [abstract] Convertible notes. Convertible Notes [Line items] Disclosure of reconciliation of liabilities arising from financing activities [text block] Summary of Changes in Liabilities Attributable to Financing Activities Disclosure of depreciation and amortisation expense [text block] Depreciation Amortization and Impairment by Per Function Disclosure of basis of preparation of financial statements [text block] Basis of preparation Description of accounting policy for borrowing costs [text block] Information of Borrowing Costs Percenatge of Interest rate of promissory notes. Percentage of Interest rate of promissory Notes Percentage of Interest rate of promissory Notes Liabilities to credit institutions. Liabilities To Credit Institutions [Line Items] Liabilities To Credit Institutions [Line Items] Number of share options expired in share-based payment arrangement Number of employees stock option ,Expired Segment consolidation items [axis] Segment consolidation items [axis] Term loan facility. Term loan facility Two existing production plants.. Two Existing Production Plants [Member] Two Existing Production Plants Option to extend sustainability loan. Option To Extend Sustainability Loan Option to extend sustainability loan Fair value of currency derivatives. Fair Value Of Currency Derivatives Fair value of currency derivatives Weighted average ordinary shares used in calculating basic and diluted earnings per share [abstract] Weighted average comon shares outstanding: Shares used in computation Disclosure of model inputs for warrants granted explanatory. Disclosure Of Model Inputs For Warrants Granted Explanatory Summary of Model Inputs for Warrants Granted Employee benefits expenses by function. Employee Benefits Expenses By Function [Table] Employee Benefits Expenses By Function [Table] Asset impairment charge and other costs related to assets held for sale. Asset impairment charge and other costs related to assets held for sale Asset impairment charge and other costs related to assets held for sale Buildings [member] Buildings Depreciation, right-of-use assets Depreciation Total depreciation/amortization/impairment by function Proportion of voting rights held in subsidiary Proportion of voting rights and shares held (directly or indirectly) (%) Other current receivables Other current receivables Total Other receivables Increase (decrease) through changes in fair values, liabilities arising from financing activities Change in fair value recognized in consolidated statement of other comprehensive loss Social security contributions Social security costs Defined benefit plans [axis] Defined benefit plans [axis] Disclosure of classes of share capital [table] Disclosure Of Classes Of Share Capital [Table] Disclosure of RSUs outstanding and related information. Disclosure Of Restricted Stock Units Outstanding And Related Information Explanatory Summary of RSUs Outstanding and Related Information Oatly Switzerland AG. Oatly Switzerland AG [Member] Oatly Switzerland AG Base Rates [member] Base Rates [member] Base rate Borrowings, adjustment to interest rate basis Increase decrease in interest rate basis points Floor rate Disposals, intangible assets and goodwill Scrapped Term loan one. Term Loan One Long term financing Term loan facility, Amount Provision for decommissioning, restoration and rehabilitation costs [member] Decommissioning Accumulated depreciation and amortisation [member] Accumulated Depreciation and Amortization Accumulated Depreciation Current derivative financial liabilities Derivatives Derivatives (part of other current liabilities) Derivatives (part of Other current liabilities) Non-current derivative financial liabilities Derivatives (part of other non-current liabilities) Key management personnel compensation, short-term employee benefits Short-term employee benefits Headquarters office. Headquarters office [Member] Headquarters Office Oatly Germany GmbH. Oatly Germany Gmb H [Member] Oatly Germany GmbH Disclosure of impact of input assumptions changes in fair value per employee stock option. Disclosure Of Impact Of Input Assumptions Changes In Fair Value Per Employee Stock Option Explanatory Summary of Impact of Input Assumptions Changes in Fair Value Per Employee Stock Option Equity [abstract] Equity Disclosure of information about impact of key inputs and assumptions on the fair value of the convertible notes explanatory. Disclosure Of Information About Impact Of Key Inputs And Assumptions On The Fair Value Of The Convertible Notes Explanatory Summary of Impact of Key Inputs and Assumptions on the Fair Value of the Convertible Notes Past due status [axis] Past due status [axis] Borrowings by name [axis] Borrowings by name [axis] Oatly Netherlands BV. Oatly Netherlands B V [Member] Oatly Netherlands BV Classes of intangible assets other than goodwill [axis] Classes of intangible assets other than goodwill [axis] Number of members of key management. Number Of members of key management Number of members of key management Trade receivables abstract. Trade Receivables [Abstract] Construction in progress [member] Construction in Progress Decrease through classified as held for sale, property, plant and equipment Decrease through classified as held for sale, property, plant and equipment Assets held for sale (Note 34) Utilisation allowance account for credit losses of financial asset. Utilisation Allowance Account For Credit Losses of Financial Asset Receivables written off during the year as uncollectible Disclosure of detailed information about intangible assets [table] Disclosure Of Intangible Assets [Table] Classes of financial instruments [domain] Assets Assets at end of period Assets at beginning of period TOTAL ASSETS SEK/SGD exchange rate. S E K Vs S G D Exchange Rate [Member] SEK/SGD Exchange Rate Earnings per share [line items] Earnings Per Share [Line Items] Employee stock options and restricted stock units. Employee Stock Options And Restricted Stock Units [Member] Employee stock options (ESOPs) and Restricted Stock Units (RSUs) Disclosure of financial risk management. Disclosure Of Financial Risk Management [Table] Disclosure Of Financial Risk Management [Table] Cash and cash equivalents [abstract] Number of other equity instruments outstanding in share-based payment arrangement Number of instruments, Ending balance Number of instruments, Beginning balance Warrants outstanding Granted On July Two Thousand Twenty Three. Granted On July Two Thousand Twenty Three [Member] July 2023 Settling period of current liability. Settling Period Of Current Liability Settling period of current liability Total shortfall expenses. Total shortfall expenses Alecta. Alecta [Member] Alecta Existing Shareholders Nativus Company Limited Verlinvest and Blackstone Funds [Member] Existing Shareholders Nativus Company Limited Verlinvest and Blackstone Funds [Member] Existing Shareholders, Nativus Company Limited, Verlinvest and Blackstone Funds Liabilities to credit institutions and available facilities member. Liabilities To Credit Institutions And Available Facilities [Member] Liabilities To Credit Institutions And Available Facilities Percentage of insurance obligations in collective consolidation level. Percentage Of Insurance Obligations In Collective Consolidation Level Percentage of insurance obligations in collective consolidation level Disclosure of other non current receivable. Disclosure Of Other Non Current Receivable Other non-current receivables Components of equity [domain] Types of share-based payment arrangements [axis] Types of share-based payment arrangements [axis] Disclosure of deferred tax assets have not been recognized. Disclosure Of Deferred Tax Assets Have Not Been Recognized Explanatory Summary of Deferred Tax Assets Not Been Recognized Asset retirement obligations. Asset Retirement Obligations [Member] Asset Retirement Obligations Increase (decrease) through net exchange differences, right-of-use assets Exchange differences Disclosure of financial instruments [text block] Fair value of financial instruments Incentive Award Plan 202. Incentive Award Plan 2021 [member] 2021 Incentive Award Plan Weighted average conversion rate. Weighted Average Conversion Rate Weighted average conversion rate Current restructuring provision Current, Restructuring Par value per share Par value Other operating income (expense) Other operating (expense)/income Other operating income and (expenses), net Other operating income and (expenses), net Weighted average exercise price of share options outstanding in share-based payment arrangement Weighted average exercise price, Ending balance Weighted average exercise price, Beginning balance Disclosure of cash and cash equivalents [text block] Cash and cash equivalents Summary of warrants granted. Disclosure Of Summary Of Warrants Granted Explanatory Summary of Warrants Granted Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Disclosure of quantitative information about right-of-use assets [table] Disclosure Of Quantitative Information About Rightofuse Assets [Table] Key management personnel compensation, share-based compensation. Key management personnel compensation, share-based compensation Share-based compensation Disclosure of maturity analysis of operating lease payments [text block] Summary of Maturity Analysis of Lease Liabilities Weighted average number of ordinary shares used in calculating diluted earnings per share Diluted Weighted average number of shares, Diluted (thousands) Disclosure of other operating income (expense) explanatory1. Disclosure Of Other Operating Income Expense Explanatory1 Summary of Other Operating Income and (Expenses), Net Disclosure of indirect measurement of fair value of goods or services received, share options granted during period [text block] Summary of Inputs to Black-Scholes Option-pricing Model Used to Stock Options for Exchange to RSUs and Employee Stock Options Dallas-Fort Worth Facility. Dallas-Fort Worth Facility [Member] DFW Facility Non-current assets [abstract] Non-current assets Past due status [domain] Current trade payables Trade payables Trade payables Disclosure of finance income (cost) [text block] Finance income and expenses Earnings before interest, taxes, depreciation, and amortization. Earnings Before Interest Taxes Depreciation And Amortization EBITDA Number of outstanding employee stock options. Number Of Outstanding Employee Stock Options Employee stock options Discontinued Construction of Production Facilities Discontinued construction of production facilities. Discontinued construction of production facilities Peterborough. Peterborough [Member] Peterborough, United Kingdom Peterborough, UK Diluted earnings (loss) per share Diluted Total diluted earnings (loss) per share Diluted loss per share, U.S. $ HH notes. HH Notes [member] HH Notes Accrued expenses explanatory. Accrued Expenses Explanatory Accrued expenses Disclosure of reconciliation of liabilities arising from financing activities [table] Disclosure Of Reconciliation Of Liabilities Arising From Financing Activities [Table] Production plants one. Production Plants One [Member] Production Plants One Services received, related party transactions Amount paid to related party Weighted average exercise price of share options expired in share-based payment arrangement Weighted average exercise price, Expired Disclosure of estimated useful life of property, plant and equipment explanatory. Disclosure Of Estimated Useful Life Of Property Plant And Equipment Explanatory Estimated Useful Life of Property, Plant and Equipment Disclosure of detailed information about borrowings [line items] Entity Registrant Name Entity Registrant Name Disclosure of defined benefit plans [abstract] The disclosure of detailed information about cash and cash equivalents. Disclosure Of Detailed Information About Cash And Cash Equivalents Explanatory Summary of Cash and Cash Equivalents Aggregate continuing and discontinued operations [member] Lease extension option period. Lease Extension Option Period Lease extension option period Other reserves Other reserves Non-current portion of non-current borrowings Liabilities to credit institutions Total non-current portion of non-current borrowings Non-current liabilities to credit institutions Reversal allowance account for unused amount. Reversal Allowance Account For Unused Amount Reversal allowance account for unused amount Unused amount reversed Statement of changes in equity [table] Statement Of Changes In Equity [Table] Short-term credit facility utilized. Short Term Credit Facility Utilized Short-term credit facility utilized Past due more than two months but less than three months. Past Due More Than Two Months But Less Than Three Months [Member] 61-90 Days Past Due Embedded leases. Embedded Leases [Member] Embedded Leases Cybersecurity Risk Management Positions or Committees Responsible [Flag] Disclosure of financial assets [line items] Extended maximum lease term extension date. Extended Maximum Lease Term Extension Date Extended lease term extension date Amendment Description Promissory notes non current receivables. Promissory Notes Non Current Receivables Promissory note Short-term deposits, classified as cash equivalents Short-term deposits S-T deposits Description of accounting policy for intangible assets and goodwill [text block] Intangible assets Treasury shares Treasury shares Disclosure of detailed information about other non-current liabilities. Disclosure Of Detailed Information About Other Non Current Liabilities Explanatory Summary of Other Non-current Liabilities Name of subsidiary Name Statement of comprehensive income [abstract] Lease. Lease [Abstract] Equity Ending balance Beginning balance Total equity SEK/NOK exchange rate. S E K Vs N O K Exchange Rate [Member] SEK/NOK Exchange Rate Shareholder loans. Shareholder Loans [Table] Shareholder Loans [Table] Classes of property, plant and equipment [domain] Prepayment of obligation amount. Prepayment Of Obligation Amount Obligation amount prepaid Types of contracts [domain] Accrued marketing and sales expenses member. Accrued Marketing And Sales Expenses [Member] Accrued Marketing and Sales Expenses Percentage of quarterly tangible solvency ratio financial covenant level. Percentage of quarterly tangible solvency ratio financial covenant level. Percentage of quarterly tangible solvency ratio financial covenant level Other channel. Other Channel [Member] Other Non-current provisions At December 31, 2023 At January 1, 2024 Provisions Total non-current provisions Provisions (Note 26) Retained earnings Accumulated deficit Total retained earnings Analysis of income and expense [abstract] Other finance cost Other financial expenses Equity and liabilities [abstract] EQUITY AND LIABILITIES Types of customers [domain] Other finance income Other financial income Disclosure of intangible assets and goodwill [text block] Intangible assets Gains losses on change in fair value of changes short-term investments. Gains Losses On Change In Fair Value Of Changes Short Term Investments Fair value changes on short-term investments Disclosure of detailed information about property, plant and equipment [table] Disclosure Of Property Plant And Equipment [Table] Disclosure of noncurrent provisions. Disclosure Of Noncurrent Provisions [Line Items] Disclosure Of Noncurrent Provisions [Line Items] Accumulated depreciation, amortisation and impairment [member] Accumulated Depreciation Accumulated Depreciation, Amortization and Impairment Disclosure of maturity analysis of operating lease payments [abstract] Percentage of impact of increasing share price on convertible notes Percentage of impact of increasing share price on convertible notes Share price increase in fair value of convertible notes. Share price increase in fair value of convertible notes Share price increase 30% Liabilities to credit institutions Short-term credit facility Bank overdraft facility Fair value adjustment percentage. Fair Value Adjustment Percentage Fair value adjustment percentage Fair value of convertible notes at start. Fair Value Of Convertible Notes At Start Fair value of convertible notes at start Weighted average number of American Depositary Shares Weighted average number of american depositary shares. Weighted average number of ADS (1 ADS representing 20 ordinary shares) Types of customers [axis] Types of customers [axis] Disclosure of amounts recognized in consolidated statement of operations. Disclosure Of Amounts Recognized In Consolidated Statement Of Operations Explanatory Summary of Amounts Recognized in Consolidated Statement of Operations Legal settlement expenses. Legal settlement expenses Legal settlement expenses (Note 26) Basic loss per american depositary shares attributable to shareholder of the parent Basic loss per american depositary shares attributable to shareholder of the parent Basic, Loss per ADS, attributable to shareholder of the parent (1 ADS representing 20 ordinary shares): Basic loss per ADS, U.S. $ Purchase of property, plant and equipment, classified as investing activities Purchase of property, plant and equipment Purchase of property, plant and equipment Research and development expense Research and development expenses Shareholder loans. Shareholder Loans [Line Items] Shareholder Loans [Line Items] Repayments of borrowings, classified as financing activities Repayment of liabilities to credit institutions Repayments of borrowings Disclosure of analysis of single amount of discontinued operations [abstract] Non-current liabilities Total non-current liabilities Short term lease term. Short Term Lease Term Short term lease term Difference between carrying amount of financial liability and amount contractually required to pay at maturity to holder of obligation Difference between carrying amount and the amount the Company is contractually obligated to pay to holders of Convertible Notes at maturity Statement of cash flows [abstract] Convertible notes premium rate to the last reported sale price of Company Ads. Convertible Notes Premium Rate To The Last Reported Sale Price Of Company Ads Convertible notes interest rate Convertible notes premium rate to the last reported sale price of company Ads Production equipment. Production Equipment [Member] Production Equipment Underlying equity instrument and depositary receipts [axis] Closure Of Production Facility In Singapore [Member] Closure of the production facility in Singapore. Closure Of Production Facility In Singapore Promissory notes receivable interest rate basis. Promissory Notes Receivable Interest Rate Basis Basis points Other Current Receivables Abstract Other Current Receivables [Abstract] Collateral held permitted to be sold or repledged in absence of default by owner of collateral, at fair value Chattel mortgages The disclosure of detailed information about non-current assets by country. Disclosure Of Detailed Information About Non Current Assets By Country Explanatory Summary of Non-current Assets by Country Description of accounting policy for termination benefits [text block] Provision for restructuring costs Lease commitments for short-term leases for which recognition exemption has been used Total lease commitments Weighted average exercise price of employee stock options outstanding in sharebased payment arrangement. Weighted Average Exercise Price Of Employee Stock Options Outstanding In Sharebased Payment Arrangement Exercise price Disclosure of inventories [text block] Inventories Initial public offering preparation and transaction costs. Initial Public Offering Preparation And Transaction Costs IPO preparation and transaction costs Borrowings, interest rate Interest rate Nominal coupon rate Classes of assets [axis] Classes of assets [axis] Consideration received in the form of shared assets. Consideration Received In The Form Of Shared Assets Consideration received in the form of shared assets Net deferred tax assets Deferred tax assets Net deferred tax assets Non-adjusting events after reporting period [domain] Reversal, allowance account for credit losses of financial assets Unused amount reversed Reversal, allowance account for credit losses of financial assets Percentage amount by which value assigned to long-term EBITDA margin must decrease in order for units recoverable amount to be equal to carrying amount. Percentage amount by which value assigned to long-term EBITDA margin must decrease in order for units recoverable amount to be equal to carrying amount. Percentage amount by which value assigned to long-term EBITDA margin must decrease in order for units recoverable amount to be equal to carrying amount Non-controlling interests Commitments initial margin percentage. Commitments initial margin percentage Cash flows from (used in) operating activities [abstract] Operating activities Foreign currency forward contracts undiscounted cash in flows. Foreign Currency Forward Contracts Undiscounted Cash In Flows Foreign currency forward contracts- inflows Convertible notes, maturity date. Convertible notes, maturity date Disclosure of nature and extent of risks arising from financial instruments [abstract] Entity Address, Country Entity Address, Country Oatly UK Ltd. Oatly U K Ltd [Member] Oatly UK Ltd Description of accounting policy for measuring inventories [text block] Inventories Level 2 of fair value hierarchy [member] Level 2 Tax losses for which deferred tax asset recognized. Tax Losses For Which Deferred Tax Asset Recognized Tax losses for which deferred tax asset recognized Borrowings after original issue discount and transaction costs. Borrowings After Original Issue Discount And Transaction Costs Liabilities to credit institutions balance, Net Disclosure of Leases. Disclosure Of Leases [Table] Disclosure Of Leases [Table] Earnings per share [text block] Summary of Loss per Share Subordinated bridge facilities agreement member. Subordinated Bridge Facilities Agreement [Member] Subordinated Bridge Facilities Agreement Comprehensive income, attributable to non-controlling interests Non-controlling interests Total comprehensive income, attributable to non-controlling interests Restricted stock units member. Restricted Stock Units [Member] Restricted Stock Units Disclosure of other current receivables. Disclosure Of Other Current Receivables Explanatory Other current receivables Disclosure of maturity analysis for non-derivative financial liabilities [abstract] Non-derivatives Increase (decrease) through other changes, liabilities arising from financing activities Other changes Significant accounting policies. Significant Accounting Policies [Line Items] Significant Accounting Policies [Line Items] Description of employees borrowing rate. Description Of Employees Borrowing Rate Description of employees borrowing rate SEK/GBP exchange rate. S E K Vs G B P Exchange Rate [Member] SEK/GBP Exchange Rate FINLAND Finland Other non-current assets Other non-current receivables Other costs related to discontinued construction of certain production facilities. Other costs related to discontinued construction of certain production facilities Other costs related to discontinued construction of certain production facilities (Note 26) Subclassifications of assets, liabilities and equities [abstract] Net Exchange Rate Differences Abstract Net Exchange Rate Differences [Abstract] Cash or cash equivalent unless restricted settling liability period. Cash Or Cash Equivalent Unless Restricted Settling Liability Period Cash or cash equivalent unless restricted settling liability period Major components of tax expense (income) [abstract] Consideration paid (received) Purchase price received Purchase price received Disclosure of subsidiaries [line items] Disclosure Of Significant Investments In Subsidiaries [Line Items] Lease term for production plants. Lease Term For Production Plants Lease term for production plants Disclosure of transactions between related parties [table] Disclosure Of Transactions Between Related Parties [Table] Convertible notes interest rate, payable description. Convertible Notes Interest Rate, Payable Description Convertible notes interest rate, payable description Employee stock options. Employee Stock Options [Member] Employee Stock Options Undrawn bank overdraft facilities. Undrawn Bank Overdraft Facilities Undrawn bank overdraft facilities American Depositary Shares. American Depositary Shares [member] American Depositary Shares Other foreign jurisdictions tax losses member. Other Foreign Jurisdictions Tax Losses [Member] Other Foreign Jurisdictions Tax Losses Significant accounting judgments estimates and assessments. Significant Accounting Judgments Estimates And Assessments [Abstract] Percentage amount by which value assigned to pre-tax discount rate must increase in order for unit's recoverable amount to be equal to carrying amount. Percentage Amount by which Value Assigned to Pre-Tax Discount Rate Must Increase in Order for Unit's Recoverable Amount to be Equal to Carrying Amount Percentage amount by which value assigned to pre-tax discount rate must increase in order for unit's recoverable amount to be equal to carrying amount Allowance for credit losses of financial assets. Allowance for Credit Losses of Financial Assets As at December 31 As at January 1 Allowance for expected credit losses As at December 31 As at January 1 Less: allowance for expected credit losses Disclosure of impairment loss and reversal of impairment loss [line items] SOFR With Floor Rate. S O F R With Floor Rate [Member] SOFR with Floor Rate Measurement [axis] Measurement [axis] Financial assets Financial assets at end of period Financial assets at beginning of period Total financial assets Total financial assets Other current prepaid expenses. Other Current Prepaid Expenses Other Depreciation and amortisation expense Total depreciation/amortization Depreciation and amortization Total depreciation/amortization Oatly EMEA AB. Oatly E M E A A B [Member] Oatly EMEA AB Last four quarters consolidated group ebitda. Last Four Quarters Consolidated Group EBITDA Last four quarters consolidated group EBITDA Disposals, property, plant and equipment Disposals Oatly Thousands of Island Co Ltd Oatly Thousands Of Island Co Ltd [Member] Oatly Thousands of Island Co Ltd Current portion of non-current borrowings Current liabilities to credit institutions Disclosure of expenses arising from share-based payment transactions explanatory. Disclosure Of Expenses Arising From Share Based Payment Transactions Explanatory Summary of Expenses Arising from Share-based Payment Transactions Disclosure of classes of share capital [abstract] Issued capital [member] Share Capital Disclosure Of Trade Receivables [Abstract] Disclosure of trade receivables. Oatly US Inc Oatly U S Inc [Member] Oatly US Inc Sustainable revolving credit facility agreement. Sustainable Revolving Credit Facility Agreement [Member] SRCF Agreement Sustainable Revolving Credit Facility Agreement Disclosure of trade receivables explanatory. Disclosure Of Trade Receivables Explanatory Trade receivables Maturity period of loans issued to employees. Maturity Period Of Loans Issued To Employees Maturity period of loans issued to employees Percentage of impact of decreasing share price. Percentage Of Impact Of Decreasing Share Price Percentage of impact of decreasing share price Other current liabilities Other current liabilities Total Other current liabilities Disclosure of other operating income (expense) [text block] Other operating income and (expenses), net Market interest rate decrease in fair value of convertible notes. Market interest rate decrease in fair value of convertible notes Market interest rate decrease 1 percentage point Average number of members of management. Average number of members of management Average number of members of management Dallas-Fort Worth, Texas [Member] Dallas-Fort Worth, Texas [Member] Dallas-Fort Worth, Texas Floating charges securities. Floating charges securities Floating charges aggregate amount CHINA China Disclosure of detailed information about major components of income tax expense. Disclosure Of Detailed Information About Major Components Of Income Tax Expense Explanatory Major Components of Income Tax (Expense) Benefit Expenses related to new product launch issue. Expenses related to new product launch issue New product launch issue Percentage of impact of increasing Risk-free interest rate on convertible notes. Percentage point of impact of increasing Risk-free interest rate on convertible notes Payment period by customer in transfer of goods or services. Payment Period By Customer In Transfer Of Goods Or Services Payment period by the customer in transfer of goods or services Other non-current receivables Total China, Yuan Renminbi CNY Promissory notes receivable nominal interest rate for first year. Promissory Notes Receivable Nominal Interest Rate For First Year Maturity Trade and other non-current receivables [abstract] Employee benefits expense Total employee benefits expense Employee benefits expense Total Decommissioning and other exit costs Restructuring costs Restructuring and other exit costs Restructuring costs Adjustments to reconcile profit (loss) [abstract] Adjustments to reconcile net loss to net cash flows Convertible notes interest rate, payable start date. Convertible Notes Interest Rate, Payable Start Date Convertible notes interest rate, payable start date Employee Benefits Expenses By Function Employee benefits expenses by function. Employee benefits expenses by function Current assets Total current assets Liabilities arising from financing activities [axis] Liabilities arising from financing activities [axis] Potentially dilutive instruments not included in computation of diluted loss per share. Potentially Dilutive Instruments Not Included In Computation Of Diluted Loss Per Share Potentially dilutive securities not included in computation of diluted loss per share Key management personnel of entity or parent [member] Board of Directors Executive Officers, Board of Directors Levels of fair value hierarchy [domain] Disclosure of information about key inputs and assumptions used in the valuation model for fair value of the Convertible Note explanatory Disclosure of information about key inputs and assumptions used in the valuation model for fair value of the Convertible Note explanatory Summary of Key Inputs and Assumptions Used in the Valuation Model for Fair Value of the Convertible Note Voting power description. Voting Power Description Voting power description SWEDEN Sweden Losses on litigation settlements Losses on litigation settlements Legal settlement