Fair value of ownership of equity method investment Equity Method Investment, Quoted Market Value Stock repurchase value Stock Repurchase Program, Authorized Amount Hedging Designation [Domain] Hedging Designation [Domain] Intangible Assets, at cost Finite-lived and Indefinite-lived Intangible Assets [Roll Forward] Finite-lived and Indefinite-lived Intangible Assets Amount released from accumulated other comprehensive losses in equity method transaction Losses/(gains) reclassified into net earnings Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net earnings attributable to Mondelēz International Net Income (Loss) Attributable to Parent Entity Emerging Growth Company Entity Emerging Growth Company Operating lease right of use assets Operating Lease, Right-of-Use Asset Schedule of Purchase Price Allocation of Net Tangible and Intangible Assets Acquired and Liabilities Assumed Schedule of Business Acquisitions, by Acquisition [Table Text Block] Schedule of Notional Values of Derivative Instruments Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Pre-tax gain (loss) on sale of equity method investment Equity Method Investment, Realized Gain (Loss) on Disposal Interest cost Defined Benefit Plan, Interest Cost Accrued employment costs Employee-related Liabilities, Current Interest rate contracts Interest Rate Contract [Member] Income Statement Location [Axis] Income Statement Location [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Long-term operating lease liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability, Noncurrent Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Operating Lease, Liability, Noncurrent Acquisition-related costs Acquisition-related costs Business Combination, Acquisition Related Costs Receivable Type [Axis] Receivable Type [Axis] 4.500% Notes due 2035 Four Point Five Percent Notes Due 2035 [Member] Four Point Five Percent Notes Due 2035 Entity Address, Address Line One Entity Address, Address Line One Curtailment credit Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Additional paid-in capital Additional Paid in Capital, Common Stock Entity Filer Category Entity Filer Category Impairment of intangible assets Asset impairments Impairment of Intangible Assets (Excluding Goodwill) Restructuring Type [Axis] Restructuring Type [Axis] Currency Translation and Highly Inflationary Accounting Foreign Currency Transactions and Translations Policy [Policy Text Block] Other assets Other Assets, Noncurrent Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Investment, Name [Axis] Investment, Name [Axis] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Segments [Axis] Segments [Axis] Retirement Benefits [Abstract] Retirement Benefits [Abstract] Proceeds from sale of equity method investment Proceeds from Sale of Equity Method Investments (Decrease)/Increase Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Postretirement Benefit Plans Postretirement Health Coverage [Member] Derivatives Not Designated as Hedging Instruments Not Designated as Hedging Instrument, Economic Hedge [Member] Aggregate intrinsic value options exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Options canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Schedule of Amounts Reclassified from Accumulated Other Comprehensive Earnings/(Losses) Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Document Fiscal Year Focus Document Fiscal Year Focus Intangibles acquired Acquisitions Intangible Assets Acquired Other Than Goodwill Intangible Assets Acquired Other Than Goodwill Subsequent Event Type [Domain] Subsequent Event Type [Domain] Deferred tax liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Comprehensive earnings/(losses): Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Amortization of intangible assets Amortization expense for intangible assets Amortization of intangible assets Amortization of Intangible Assets Schedule of Restructuring Program Liability Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Remaining share repurchase capacity Stock Repurchase Program, Remaining Authorized Repurchase Amount Long-term debt Long-term Debt and Lease Obligation Antidilutive Mondelēz International stock options excluded from the calculation of diluted EPS (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Components of Inventories Schedule of Inventory, Current [Table Text Block] Sale of Stock [Axis] Sale of Stock [Axis] Loss related to interest rate swaps Pre-tax loss on interest rate swaps included in interest and other expense, net Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net Business Combination and Asset Acquisition [Abstract] Cash, Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Weighted average grant date fair value of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Shares granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Business Acquisition [Axis] Business Acquisition [Axis] Cash flow hedges Cash Flow Hedging [Member] Property, plant and equipment, gross Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, before Accumulated Depreciation and Amortization Income Tax Authority, Name [Axis] Income Tax Authority, Name [Axis] Award Type [Domain] Award Type [Domain] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Credit Facility [Domain] Credit Facility [Domain] ASSETS Assets [Abstract] Currency Accounts Receivable, Allowance for Credit Loss, Foreign Currency Translation And Other Accounts Receivable, Allowance for Credit Loss, Foreign Currency Translation And Other Net loss from experience differences Amortization of net gains Defined Benefit Plan, Amortization of Gain (Loss) Finance lease right-of-use assets in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Finance Lease Liability Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Shares granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Goodwill and Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Concentration risk percentage Concentration Risk, Percentage Definite-lived intangible assets acquired Finite-lived Intangible Assets Acquired Repayments of commercial paper, maturities greater than 90 days Repayments of Commercial Paper Cash dividends declared Dividends, Cash Balance at January 1, 2021 (in shares) Balance at June 30, 2021 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Entity Address, City or Town Entity Address, City or Town Retained Earnings Retained Earnings [Member] Debt Instrument [Axis] Debt Instrument [Axis] Reallocation of previously approved capital expenditures to be spent on restructuring program cash costs Restructuring Reserve Reclassification Reclassification of planned restructuring program cash spending components. Debt Debt Instrument, Fair Value Disclosure Allowance for Trade Receivables Trade Accounts Receivable [Member] Stock Options and Performance Share Units Share-based Payment Arrangement, Option And Performance Share Units [Member] Share-based Payment Arrangement, Option And Performance Share Units Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Effective tax rate, excluding effects of equity method investment transaction Effective Income Tax Reconciliation, Percent, Excluding Effects Of Equity Method Transaction Effective Income Tax Reconciliation, Percent, Excluding Effects Of Equity Method Transaction Prior service benefit Prior service credit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Distributions from equity method investments Proceeds from Equity Method Investment, Distribution Accrued capital expenditures unpaid Capital Expenditures Incurred but Not yet Paid Amount Redeemed Debt Instrument, Repurchased Face Amount Schedule of Interest and Other Expense Interest and Other Income and Expense Disclosure, Non Operating [Table Text Block] Interest and Other Income and Expense Disclosure, Non Operating [Table Text Block] Inventory Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Operating lease right-of-use assets obtained in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Long-term other liabilities Long-term other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Comprehensive earnings/(losses) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest 2.375% Notes due 2035 Two Point Three Seventy Five Percent Notes Due 2035 [Member] Two Point Three Seventy Five Percent Notes Due 2035 Net actuarial gain/(loss) arising during period Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax Credit Facility Expiring February 24, 2021 Senior Unsecured Revolving Credit Facility Maturing February 24, 2021 [Member] Senior Unsecured Revolving Credit Facility Maturing February 24, 2021 Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Other current assets Increase (Decrease) in Other Current Assets Entity Interactive Data Current Entity Interactive Data Current Multi-year Senior Unsecured Revolving Credit Facility Expiring February 27, 2024 Multi-year Senior Unsecured Revolving Credit Facility [Member] Multi-year Senior Unsecured Revolving Credit Facility Number of operating segments Number of Operating Segments Basic earnings per share attributable to Mondelēz International (in dollars per share) Earnings Per Share, Basic Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Pension and other benefit plans Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Percentage of consolidated net revenues Percent Of Consolidated Revenues The percentage of total company consolidated net revenues represented by the category, region, country, or other subset noted. Less: cash received Cash Acquired from Acquisition Balance at January 1, 2021 (in shares) Balance at June 30, 2021 (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Currency Restructuring Reserve, Foreign Currency Translation Gain (Loss) Document Type Document Type Foreign currency derivative loss related to redemption payment at time of extinguishment of debt Derivative, Loss on Derivative Interest expense, debt Interest Expense, Debt After-tax gain (loss) on sale of equity method investment Equity Method Investment, Realized Gain (Loss) On Disposal, After Tax Equity Method Investment, Realized Gain (Loss) On Disposal, After Tax Raw materials Inventory, Raw Materials, Gross Geographic Concentration Risk Geographic Concentration Risk [Member] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Unrealized gains/(losses) on hedging activities (mark-to-market impacts) Unrealized Gain (Loss) on Derivatives Fair Value Measurement [Domain] Fair Value Measurement [Domain] Definite-life intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Entity Current Reporting Status Entity Current Reporting Status Accrued pension costs Liability, Defined Benefit Pension Plan, Noncurrent Tax benefit due to new tax guidance Income Tax Reconciliation, Amended Tax Returns Due To New Guidance Income Tax Reconciliation, Amended Tax Returns Due To New Guidance Machinery and equipment Machinery and Equipment [Member] Prepaid pension assets Assets for Plan Benefits, Defined Benefit Plan Commercial paper Commercial Paper [Member] 4.000% Notes Due February 2024 Four Point Zero Percent Notes Due February 2024 [Member] Four Point Zero Percent Notes Due February 2024 Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Other non-cash items, net Other Noncash Income (Expense) Argentina ARGENTINA Share Repurchase Program Amended January 31, 2018 Share Repurchase Program [Member] Share Repurchase Program [Member] Book value of brands with fair value in excess of book value of 10% or less Book Value of Indefinite Lived Intangibles, Fair Value Over Book Value, Ten Percent Or Less Book Value of Indefinite Lived Intangibles, Fair Value Over Book Value, Ten Percent Or Less Cash Costs Charges Cash [Member] Charges Cash [Member] Total purchase price Business Combination, Consideration Transferred Current period provision for expected credit losses Accounts Receivable, Credit Loss Expense (Reversal) Net tax expense incurred in connection with equity method transaction Effective Income Tax Rate Reconciliation, Equity Method Transaction, Amount Effective Income Tax Rate Reconciliation, Equity Method Transaction, Amount Increase in share repurchase value Increase In Stock Repurchase Program Authorized Amount Increase In Stock Repurchase Program Authorized Amount Goodwill Goodwill [Roll Forward] Schedule of Hedges of Net Investments in International Operations Schedule of Net Investment Hedges in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Current portion of long-term debt Long-term Debt and Lease Obligation, Current 0.250% Notes due 2028 Zero Point Two Fifty Percent Notes Due 2028 [Member] Zero Point Two Fifty Percent Notes Due 2028 Level 1 Quoted Prices in Active Markets for Identical Assets (Level 1) Fair Value, Inputs, Level 1 [Member] CASH PROVIDED BY/(USED IN) INVESTING ACTIVITIES Net Cash Provided by (Used in) Investing Activities [Abstract] Goodwill impairment Asset impairments Goodwill, Impairment Loss Document Transition Report Document Transition Report Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Grenade Lion/Gemstone Topco Ltd ("Grenade") [Member] Lion/Gemstone Topco Ltd ("Grenade") TOTAL LIABILITIES AND EQUITY Liabilities and Equity Equity method investment transactions Equity Method Investment Transaction [Member] Equity Method Investment Transaction Derivative cash flow hedges Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Scenario [Axis] Scenario [Axis] Issuances of commercial paper, maturities greater than 90 days Proceeds from Issuance of Commercial Paper Options exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted-Average Aggregate Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Actual tax benefit realized and recorded in the provision for income taxes for the tax deductions from the option exercises Share-based Payment Arrangement, Exercise of Option, Tax Benefit Equity method investment transaction costs Sale Of Stock, Transaction Costs Sale Of Stock, Transaction Costs Give & Go Give & Go [Member] Give & Go Euro notes Euro Notes [Member] Euro Notes Member Accounts payable Increase (Decrease) in Accounts Payable Derivative [Line Items] Derivative [Line Items] Hedging Relationship [Domain] Hedging Relationship [Domain] Net investment hedge derivative contracts Net investment hedge contracts Interest Rate Swap [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Net benefit from the release of uncertain tax positions due to expiration of statutes of limitations, audit settlements Income Tax Reconciliation, Tax Settlements And Expiration Of Statute Of Limitations Income tax reconciliation, tax settlements and expiration of statute of limitations. Income Tax Contingency [Table] Income Tax Contingency [Table] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Tax expense/(benefit) on reclassifications Reclassification from AOCI, Current Period, Tax Earnings per Share Earnings Per Share [Text Block] Common Stock repurchased Common shares repurchased Treasury Stock, Value, Acquired, Cost Method Average cost of shares repurchased (in dollars per share) Treasury Stock Acquired, Average Cost Per Share Schedule of Cash Flow Hedges Effect on Accumulated Other Comprehensive Earnings/(Losses), Net of Taxes Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Equity method investment, ownership percentage Equity Method Investment, Ownership Percentage Number of brands with fair value in excess of book value of 10% or less Number Of Indefinite Lived Intangibles Fair Value Over Book Value Ten Percent Or Less Number Of Indefinite Lived Intangibles Fair Value Over Book Value 10% or Less Non-U.S. Plans Foreign Plan [Member] Estimated amortization expense of intangibles in 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Four Schedule of Intangible Assets Disclosure Schedule Of Intangible Assets [Table Text Block] Schedule Of Intangible Assets [Table Text Block] Minimum Minimum [Member] Candy Candy [Member] Candy COVID-19 COVID-19 Pandemic [Member] COVID-19 Pandemic Gross profit Gross Profit Borrowed Amount Long-term Line of Credit Effect of exchange rate changes on cash, cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Balance Sheet Location [Domain] Balance Sheet Location [Domain] less: Comprehensive earnings/(losses) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Earnings before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Selling, general and administrative expenses Selling, General and Administrative Expense Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Benefit plan non-service income Benefit plan non-service income Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component Europe Europe Segment [Member] Europe Segment Restructuring reserve Liability balance, January 1, 2021 Liability balance, June 30, 2021 Restructuring Reserve Tax (expense)/benefit before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Trading Symbol Trading Symbol Loss contingency, damages sought Loss Contingency, Damages Sought, Value Percentage of interest acquired Business Acquisition, Percentage of Voting Interests Acquired Deferred income taxes Deferred Income Tax Assets, Net U.K. UNITED KINGDOM Receivable [Domain] Receivable [Domain] 1.625% Notes due 2027 One Point Six Twenty Five Percent Notes Due 2027 [Member] One Point Six Twenty Five Percent Notes Due 2027 Acquisitions, net of cash received Closing cash consideration, net of cash received Net Cash Paid Payments to Acquire Businesses, Net of Cash Acquired Currency translation adjustments Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Debt and Borrowing Arrangements Debt Disclosure [Text Block] Restructuring Plan [Domain] Restructuring Plan [Domain] Bank loans Line of Credit Line of Credit [Member] Scenario, Plan Scenario, Plan [Member] Stock Plans Share-based Payment Arrangement [Text Block] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Non-cash asset write-downs Non-cash settlements/adjustments Restructuring Reserve, Settled without Cash Inventories Inventory Disclosure [Text Block] Accumulated depreciation Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, Accumulated Depreciation and Amortization Accounting Policies [Abstract] Accounting Policies [Abstract] Average remaining contractual term Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Derivative Instrument [Axis] Derivative Instrument [Axis] Trading Activity, by Type [Domain] Trading Activity, by Type [Domain] Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Goodwill and Intangible Assets Disclosure [Line Items] Goodwill and Intangible Assets Disclosure [Line Items] Goodwill and Intangible Assets Disclosure [Line Items] Dong Suh Foods Corporation Dong Suh Foods Corporation [Member] Dong Suh Foods Corporation Schedule of Net Revenues by Product Category Revenue from External Customers by Products and Services [Table Text Block] Common Stock, no par value (5,000,000,000 shares authorized and 1,996,537,778 shares issued at June 30, 2021 and December 31, 2020) Common Stock, Value, Issued Interest and other expense, net Nonoperating Income (Expense) Implementation costs Implementation Costs Restructuring Costs Implementation Cost Restructuring costs, implementation cost Balance at January 1, 2021 (in dollars per share) Balance at June 30, 2021 (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Goodwill acquired Acquisitions Goodwill, Acquired During Period Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Performance share units Performance Shares [Member] Commitments and Contingencies (Note 12) Commitments and Contingencies Accumulated other comprehensive losses Accumulated Other Comprehensive Income (Loss), Net of Tax Schedule of Derivative Instruments Fair Value and Measurement Inputs Fair Value, by Balance Sheet Grouping [Table Text Block] Trade receivables, allowances Accounts Receivable, Allowance for Credit Loss, Current Schedule of Performance Share Units and Stock-Based Awards Activity Share-based Payment Arrangement, Activity [Table Text Block] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] 1.000% Notes Due March 2022 One Point Zero Percent Notes Due March 2022 [Member] One Point Zero Percent Notes Due March 2022 Schedule of Debt Redemptions Debt Instrument Redemption [Table Text Block] Document Period End Date Document Period End Date Gourmet Food Gourmet Food Holdings Pty Ltd [Member] Gourmet Food Holdings Pty Ltd Plus incremental shares from assumed conversions of stock options and long-term incentive plan shares (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Unrealized (loss)/gain in fair value After-tax gains/(losses) recognized in other comprehensive earnings/(losses) Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Class of Stock [Axis] Class of Stock [Axis] Entity Registrant Name Entity Registrant Name Treasury stock, at cost (in shares) Treasury Stock, Shares Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Income Tax Authority [Axis] Income Tax Authority [Axis] JDE Jacobs Douwe Egberts [Member] Jacobs Douwe Egberts. Impaired Assets to be Disposed of by Method Other than Sale [Line Items] Impaired Assets to be Disposed of by Method Other than Sale [Line Items] Gain on acquisition Pre-tax gain to step up investment to fair value and consolidate the company Gain on acquisition Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Prior to January 1, 2021 Prior Periods [Member] Prior Periods [Member] Financial Instrument [Axis] Financial Instrument [Axis] Short-term Debt [Line Items] Short-term Debt [Line Items] Selling, general and administrative expenses Selling, General and Administrative Expenses [Member] Cash dividends declared (in dollars per share) Common Stock, Dividends, Per Share, Declared Dividends paid Payments of Dividends 2.125% Notes Due April 2023 Two Point One Twenty Five Percent Notes Due April 2023 [Member] Two Point One Twenty Five Percent Notes Due April 2023 Asset Derivatives Derivative Asset, Fair Value, Gross Asset Including Not Subject to Master Netting Arrangement Equity [Abstract] Equity [Abstract] Fair Value, Hierarchy [Axis) Fair Value Hierarchy and NAV [Axis] Carrying Value Reported Value Measurement [Member] Consolidation Items [Domain] Consolidation Items [Domain] Cash spent in restructuring Cash spent Payments for Restructuring After-tax gain/(loss) on NIH contracts Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Common Stock Common Stock [Member] Segment Reporting Segment Reporting Disclosure [Text Block] North America North America Segment [Member] North America Segment Operating income Operating Income (Loss) Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Less: other comprehensive (earnings)/loss attributable to noncontrolling interests Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Estimated amortization expense of intangibles in 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Two Hedging Designation Hedging Designation [Axis] Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Stock-based compensation expense Share-based Payment Arrangement, Noncash Expense Restructuring Program Restructuring and Related Activities Disclosure [Text Block] Additional Paid-in Capital Additional Paid-in Capital [Member] Cash, cash equivalents and restricted cash: Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect [Abstract] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Incremental net revenues from acquisition Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Treasury Stock Treasury Stock [Member] Curtailment credit Accumulated Defined Benefit Plans Adjustment, Curtailment Credits Attributable to Parent [Member] Accumulated Defined Benefit Plans Adjustment, Curtailment Credits Attributable to Parent Asset impairments and accelerated depreciation Total Asset Impairment Charges Notional Amount Derivative, aggregate notional value Derivative, Notional Amount Net tax expense from increase in deferred tax liability resulting from tax legislation Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Interest and other expense, net Interest and other expense, net Other Nonoperating Income (Expense) Currency Intangible Assets (Excluding Goodwill) Foreign Currency Translation Gain (Loss) Reflects net changes to intangible assets for foreign currency translation adjustments. Other Payments for (Proceeds from) Other Investing Activities Summary of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Summary Of Significant Accounting Policies [Line Items] Capital expenditures Capital expenditures Payments to Acquire Property, Plant, and Equipment Other current liabilities Other Liabilities, Current Total derivatives Derivative, Fair Value, Net Currency impact Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax Employer contribution Defined Benefit Plan, Plan Assets, Contributions by Employer Maximum Maximum [Member] Share-based Payment Arrangement [Abstract] Share-based Payment Arrangement [Abstract] Entity Information [Line Items] Entity Information [Line Items] Schedule of Debt Issuances Schedule Of Debt Issuances [Table Text Block] Schedule Of Debt Issuances Restructuring Program Charges Restructuring Costs [Member] Restructuring Costs [Member] TOTAL LIABILITIES Liabilities Legal Entity [Axis] Legal Entity [Axis] Intercompany loans and forecasted interest payments Intercompany Loans And Forecasted Interest Payments [Member] Intercompany Loans and Forecasted Interest Payments [Member] Receivables, net Increase (Decrease) in Receivables Award Type [Axis] Award Type [Axis] Estimated amortization expense of intangibles in 2022 Finite-Lived Intangible Asset, Expected Amortization, Year One Options granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price CASH PROVIDED BY/(USED IN) FINANCING ACTIVITIES Net Cash Provided by (Used in) Financing Activities [Abstract] Aggregate intrinsic value Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Latin America Latin America Segment [Member] Latin America Segment Derivative Derivative [Member] Consolidation Items [Axis] Consolidation Items [Axis] Total Mondelēz International Shareholders’ Equity Stockholders' Equity Attributable to Parent Credit Facility Expiring February 27, 2024 Senior Unsecured Revolving Credit Facility Maturing February 27, 2024 [Member] Senior Unsecured Revolving Credit Facility Maturing February 27, 2024 Gourmet Food, Hu and Grenade Hu Master Holdings, Grenade And Gourmet Food Holdings Pty [Member] Hu Master Holdings, Grenade And Gourmet Food Holdings Pty Common stock, shares issued (in shares) Common Stock, Shares, Issued Number of impaired brands Impaired Intangible Asset, Number Impaired Intangible Asset, Number Indefinite-life intangible assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets Equity Method Investments Equity Method Investments and Joint Ventures Disclosure [Text Block] Derivatives designated as accounting hedges Designated as Hedging Instrument [Member] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Loss on early extinguishment of debt Net loss on extinguishment of debt Gain (Loss) on Extinguishment of Debt Repurchase of Common Stock Payments for Repurchase of Common Stock AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Biscuit Biscuits Biscuits [Member] Biscuits Income Tax Authority, Name [Domain] Income Tax Authority, Name [Domain] Accrued postretirement health care costs Liability, Other Postretirement Defined Benefit Plan, Noncurrent Balance Sheet Location [Axis] Balance Sheet Location [Axis] Schedule of Short-term Debt [Table] Schedule of Short-term Debt [Table] Long-term operating lease liabilities Operating Lease, Liability, Noncurrent Gross Proceeds Debt Instrument, Face Amount Weighted-Average Rate Short-term Debt, Weighted Average Interest Rate, at Point in Time Net periodic benefit cost (credit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) City Area Code City Area Code Retained earnings Retained Earnings (Accumulated Deficit) Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Operating Segments Operating Segments [Member] Litigation Case [Domain] Litigation Case [Domain] Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Schedule of Segment Net Revenues and Earnings Reconciliation of Revenue from Segments to Consolidated [Table Text Block] Swiss franc notes Franc Notes [Member] Franc Notes [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Schedule of Effects of Derivative Instruments Derivative Instruments, Gain (Loss) [Table Text Block] Share Repurchase Program [Axis] Share Repurchase Program [Axis] 2014-2018 Restructuring Program Two Thousand Fourteen To Two Thousand Eighteen Restructuring Program [Member] Two Thousand Fourteen To Two Thousand Eighteen Restructuring Program [Member] Net issuances of other short-term borrowings Proceeds From (Repayments Of) Other Short-term Debt Proceeds From (Repayments Of) Other Short-term Debt Equity method investments Equity Method Investments Income Statement [Abstract] Income Statement [Abstract] Amendment Flag Amendment Flag Fair Value Estimate of Fair Value Measurement [Member] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Number of countries in which entity operates (more than) Number of Countries in which Entity Operates Accounts receivables Receivables Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables Cash dividends received from equity method investments Proceeds from Dividends Received Simplify to Grow Program Two Thousand Fourteen to Two Thousand Twenty Two Restructuring Program [Member] Two Thousand Fourteen to Two Thousand Twenty Two Restructuring Program Amount of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination Business Combination, Step Acquisition, Equity Interest In Acquiree, Amount Business Combination, Step Acquisition, Equity Interest In Acquiree, Amount Cash received from options exercised Proceeds from Stock Options Exercised Indefinite-life intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) 1.625% Notes Due January 2023 One Point Six Twenty Five Percent Notes Due January 2023 [Member] One Point Six Twenty Five Percent Notes Due January 2023 Options canceled (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] TOTAL EQUITY Balance at beginning of period Balance at end of period Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Income tax provision Income Tax Expense (Benefit) Trade receivables (net of allowances of $41 at June 30, 2021 and $42 at December 31, 2020) Accounts Receivable, after Allowance for Credit Loss, Current Long-term debt proceeds Proceeds from Issuance of Long-term Debt Equity Components [Axis] Equity Components [Axis] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract] 2.375% Notes Due January 2021 Two Point Three Seventy Five Percent Notes Due 2021 [Member] Two Point Three Seventy Five Percent Notes Due 2021 Antidilutive Securities [Axis] Antidilutive Securities [Axis] Total current assets Assets, Current Sale of Stock [Domain] Sale of Stock [Domain] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Inventories, net Inventories, net Inventory, Net After-tax gains/(losses) reclassified from accumulated other comprehensive income into earnings/(losses) Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax Net benefit related to release in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Options granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Entity File Number Entity File Number Other (income)/expense, net Other Nonoperating Income Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Chipita, S.A. Chipita, S.A. [Member] Chipita, S.A. Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] China State Administration of Taxation, China [Member] Fair value of contingent consideration obligation Business Combination, Contingent Consideration, Liability, Noncurrent Transfers of Financial Assets Transfers and Servicing of Financial Assets, Policy [Policy Text Block] Product and Service [Axis] Product and Service [Axis] Exercise of stock options and issuance of other stock awards Shares Granted, Value, Share-based Payment Arrangement, after Forfeiture Long-Lived Tangible Asset [Domain] Long-Lived Tangible Asset [Domain] Hu Hu Master Holdings [Member] Hu Master Holdings Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Accounts Receivable, Allowance for Credit Loss [Roll Forward] Entity Small Business Entity Small Business After-tax loss on interest rate swaps included in interest and other expense, net Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net, After Tax Gain (Loss) from Components Excluded from Assessment of Cash Flow Hedge Effectiveness, Net, After Tax Schedule of Debt Repayments Schedule of Extinguishment of Debt [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Net Revenues Revenue Benchmark [Member] Equity Component [Domain] Equity Component [Domain] Currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Multiemployer plan, withdrawal liability Multiemployer Plans, Withdrawal Obligation Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Summary of Significant Accounting Policies [Table] Summary Of Significant Accounting Policies [Table] Summary of significant accounting policies [Table] Multiemployer plan, accreted interest on the long-term liability Multiemployer Plans, Withdrawal Obligation, Accreted Interest Multiemployer Plans, Withdrawal Obligation, Accreted Interest Gum Gum [Member] Gum Statement [Line Items] Statement [Line Items] General corporate expenses Segment Reporting General Corporate Expenses Segment reporting, general corporate expenses Litigation Case [Axis] Litigation Case [Axis] Net monetary assets Net Monetary Assets (Liabilities) Net Monetary Assets (Liabilities). Other current liabilities Increase (Decrease) in Other Current Liabilities Property, plant and equipment, net Property, plant and equipment, net Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Domestic Plan Domestic Plan [Member] Goodwill and Intangible Assets Disclosure [Table] Goodwill and Intangible Assets Disclosure [Table] Goodwill and Intangible Assets Disclosure [Table] Weighted- Average Exercise or Grant Price Per Share Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] U.S. Domestic Tax Authority [Member] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Short-term Debt, Type [Axis] Short-term Debt, Type [Axis] LIABILITIES Liabilities [Abstract] JDEP JDE Peet's JDE Peet’s N.V. [Member] JDE Peet’s N.V. Schedule of Fair Value of Debt Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Total intangible assets, gross Balance at January 1, 2021 Balance at June 30, 2021 Intangible Assets, Gross (Excluding Goodwill) Debt Disclosure [Abstract] Debt Disclosure [Abstract] Entity Address, State or Province Entity Address, State or Province Loss contingency, filing date Loss Contingency, Lawsuit Filing Date Payments for capital expenditures accrued in the prior year Payments to Acquire Property Plant and Equipment Accrued for In Prior Year Payments to Acquire Property Plant and Equipment Accrued for In Prior Year Allowances for Credit Losses Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] Significant Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Schedule of Changes in Goodwill and Intangible Assets Schedule of Intangible Assets and Goodwill [Table Text Block] Property, Plant and Equipment, Type Long-Lived Tangible Asset [Axis] Discrete net tax expense (benefit) Effective Tax Rate Net Tax Benefits Effective Tax Rate Net Tax Benefits Derivatives instruments, pre-tax gains/(losses) recognized in earnings Derivative, Gain (Loss) on Derivative, Net Corporate Corporate, Non-Segment [Member] Segment Reporting [Abstract] Segment Reporting [Abstract] Type of Restructuring [Domain] Type of Restructuring [Domain] Entity [Domain] Entity [Domain] Useful life of definite-lived intangible assets acquired Finite-Lived Intangible Asset, Useful Life Share Repurchase Program Amended December 2, 2020 Share Repurchase Program Amended December 2, 2020 [Member] Share Repurchase Program Amended December 2, 2020 Commodity contracts Commodity Contract [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] British pound sterling notes Sterling Notes [Member] Sterling notes Member Gross proceeds from equity method investment transaction Sale of Stock, Consideration Received Per Transaction Benefit Plans Retirement Benefits [Text Block] Schedule of Calculation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Entity Shell Company Entity Shell Company Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Local Phone Number Local Phone Number Other comprehensive earnings/(losses) attributable to Mondelēz International Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Asset impairment and exit costs Restructuring, Settlement and Impairment Provisions Estimated annual effective tax rate Estimated Annual Effective Tax Rate From Continuing Operations Estimated Annual Effective Tax Rate From Continuing Operations Expected transfer of unrealized losses (net of taxes) for interest rate cash flow hedges to earnings during the next 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Current liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities Tax (expense)/benefit Other Comprehensive Income (Loss), Tax TOTAL ASSETS Assets JDEP and KDP Keurig Dr Pepper Inc. and JDE Peets, B.V. [Member] Keurig Dr Pepper Inc. and JDE Peets, B.V. Investment, Name [Domain] Investment, Name [Domain] Multiemployer plan, withdrawal obligation term Multiemployer Plans, Withdrawal Obligation Term Multiemployer Plans, Withdrawal Obligation Term Common stock, shares authorized (in shares) Common Stock, Shares Authorized Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Chocolate Chocolate [Member] Chocolate [Member] Approved restructuring program cost Restructuring and Related Cost, Expected Cost Geographical [Domain] Geographical [Domain] After-tax gain to step up investment to fair value and consolidate the company Business Combination, Step Acquisition, Equity Interest In Acquiree, Re-measurement Gain After Tax Business Combination, Step Acquisition, Equity Interest In Acquiree, Re-measurement Gain After Tax Product and Service [Domain] Product and Service [Domain] Non-controlling Interest Noncontrolling Interest [Member] Deferred stock units Deferred Stock Units D S Us [Member] Deferred Stock Units D S Us [Member] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Interest Rate Debt Instrument, Interest Rate, Stated Percentage KDP Keurig Dr Pepper Inc. [Member] Keurig Dr Pepper Inc. Schedule of Changes in Allowances for Credit Losses Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Derivative Contract [Domain] Derivative Contract [Domain] Uncommitted credit facilities Uncommitted Credit Facility [Member] Uncommitted Credit Facility Remeasurement loss due to inflationary accounting Amount Recognized in Income Due to Inflationary Accounting Noncontrolling interest earnings Noncontrolling interest earnings Net Income (Loss) Attributable to Noncontrolling Interest Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Schedule of Uncommitted and Committed Credit Lines Available Schedule of Line of Credit Facilities [Table Text Block] Revolving Credit Agreement Revolving Credit Facility [Member] Basis of Presentation Significant Accounting Policies [Text Block] Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Short-term borrowings Amount Outstanding Short-term Debt Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Entity Tax Identification Number Entity Tax Identification Number Other receivables (net of allowances of $53 at June 30, 2021 and $42 at December 31, 2020) Other Receivables, Net, Current Geographical [Axis] Geographical [Axis] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Weighted-average shares for basic EPS (in shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings per share attributable to Mondelēz International (in dollars per share) Earnings Per Share, Diluted Segments [Domain] Segments [Domain] Stock sale price (in dollars per share) Sale of Stock, Price Per Share Decrease in equity method investment ownership percentage Equity Method Investment, Decrease In Ownership Percentage Equity Method Investment, Decrease In Ownership Percentage Service cost Defined Benefit Plan, Service Cost Net investment hedge debt Net investment hedges Net Investment Hedging [Member] Hedging Relationship [Axis] Hedging Relationship [Axis] Acquisitions and Divestitures Mergers, Acquisitions and Dispositions Disclosures [Text Block] Assets acquired Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets Grant Date Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Grant Date Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Grant Date Interest and other expense, net Interest Expense [Member] Average Remaining Contractual Term Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Remaining Contractual Term [Abstract] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Intangible assets, net Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Comprehensive earnings/(losses) attributable to Mondelēz International Comprehensive Income (Loss), Net of Tax, Attributable to Parent Severance and Related Costs Severance and related costs Employee Severance [Member] Operating right of use assets Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Operating Lease, Right-Of-Use Asset Business Combination, Recognized Identifiable Assets Acquired And Liabilities Assumed, Operating Lease, Right-Of-Use Asset Goodwill expected to be deductible for income tax purposes Business Acquisition, Goodwill, Expected Tax Deductible Amount Amortization of experience losses and prior service costs Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Treasury stock, at cost (597,038,419 shares at June 30, 2021 and 577,363,557 shares at December 31, 2020) Treasury Stock, Value Other comprehensive earnings/(losses), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Approved capital expenditures Capital Expenditures, Authorized Amount Capital Expenditures, Authorized Amount Dong Suh Oil & Fats Co. Ltd. Dong Suh Oil & Fats Co. Ltd. [Member] Dong Suh Oil & Fats Co. Ltd. Deferred income taxes Deferred Income Tax Liabilities, Net Notes Payable Loans Payable [Member] Other liabilities Long-term other liabilities Other Noncurrent Liabilities [Member] Outstanding principal amount of receivables sold under factoring arrangement Accounts Receivable Sold Under Factoring Program Principal Amount Outstanding Accounts Receivable Sold Under Factoring Program Principal Amount Outstanding Equity method investment net earnings Equity method investment net earnings Income (Loss) from Equity Method Investments Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Property, plant and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Performance Share Units and Other Stock-Based Awards Deferred Stock Units, Performance Units and Restricted Stock [Member] Deferred Stock Units, Performance Units and Restricted Stock [Member] Grant Date Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options [Abstract] Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options [Abstract] Restructuring charges Charges Restructuring Costs Restructuring Charges Accounts payable Accounts Payable, Current Trading Activity [Axis] Trading Activity [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Dividends paid on noncontrolling interest and other activities Dividends Paid on Non-controlling Interest and Other Activities Amount of decrease in total shareholders' equity, including but not limited to, additional paid in capital and noncontrolling interest resulting from dividends paid. Estimated amortization expense of intangibles in 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Three Common stock, no par value (in dollars per share) Common Stock, No Par Value Entities [Table] Entities [Table] Canadian dollar notes Canadian notes Canadian Dollar Notes [Member] Canadian Dollar Notes Gum & Candy Gum and Candy [Member] Gum and Candy [Member] Accumulated Other Comprehensive Earnings/(Losses) Accumulated other comprehensive income attributable to Mondelēz International AOCI Attributable to Parent [Member] Estimated amortization expense of intangibles in 2021 Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year Inventories, net Increase (Decrease) in Inventories Schedule of Restructuring Charges Related to Property, Plant and Equipment Schedule of Restructuring and Implementation Costs by Segment Restructuring and Related Costs [Table Text Block] Financial Instruments [Domain] Financial Instruments [Domain] Derivative [Table] Derivative [Table] Percentage of equity method investment ownership after the settlement Sale of Stock, Percentage of Ownership after Transaction Cost of sales Cost of Goods and Services Sold Weighted average grant date fair value of shares granted Weighted Average Grant Date Fair Value Stock Granted Weighted Average Grant Date Fair Value Stock Granted Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Unusual or Infrequent Item, or Both [Domain] Unusual or Infrequent Item, or Both [Domain] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Beverages Beverages [Member] Beverages [Member] U.S. Commodity Futures Trading Commission (CFTC) Litigation Case One [Member] Litigation Case One [Member] Shares Subject to Option Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Credit Facility Expiring February 23, 2022 Senior Unsecured Revolving Credit Facility Maturing February 23, 2022 [Member] Senior Unsecured Revolving Credit Facility Maturing February 23, 2022 Schedule of Components of Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Accrued marketing Accrued Advertising, Current Income Statement Location [Domain] Income Statement Location [Domain] EQUITY Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Increase in approved restructuring program costs Restructuring And Related Cost, Expected Cost, Increase Restructuring And Related Cost, Expected Cost, Increase Customer Relationships Customer Relationships [Member] Incentive payment charges and other expenses related to frozen benefit plan Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits Additional shares granted Additional Shares Granted [Member] Additional Shares Granted [Member] Non-cash Costs Charges Noncash [Member] Charges Noncash [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Property, Plant and Equipment Property, Plant and Equipment Disclosure [Text Block] Land and land improvements Land and Land Improvements [Member] Long-term debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Other liabilities Other Liabilities, Noncurrent 0.750% Notes due 2033 One Point Seven Fifty Percent Notes Due 2033 [Member] One Point Seven Fifty Percent Notes Due 2033 Number of shares repurchased (in shares) Treasury Stock, Shares, Acquired Loss on debt extinguishment and related expenses Gains (Losses) On Extinguishment Of Debt And Related Expenses Gains (Losses) On Extinguishment Of Debt And Related Expenses Debt Instrument [Line Items] Debt Instrument [Line Items] Long-term debt repaid Amount Repayments of Long-term Debt Allowance for Other Current Receivables Other Current Receivables [Member] Other Current Receivables Per share data: Earnings Per Share [Abstract] 1.375% Notes due 2041 One Point Three Seventy Five Percent Notes Due 2041 [Member] One Point Three Seventy Five Percent Notes Due 2041 Annual grant to eligible employees Group One [Member] Group One [Member] Gain on equity method investment transactions Gain on equity method investment transactions Gain on equity method investment transaction Equity Method Investment, Realized Gain (Loss) On Transaction Equity Method Investment, Realized Gain (Loss) On Transaction Balance at January 1, 2021 Balance at June 30, 2021 Accounts Receivable, Allowance for Credit Loss Inventories, gross Inventory, Gross Document Quarterly Report Document Quarterly Report Net revenues Revenues Derivative Cash Flow Hedges Derivative Cash Flow Hedges Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Transfer of realized losses/(gains) in fair value to earnings Losses reclassified from accumulated other comprehensive earnings/(losses) to net earnings Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Brands Trademarks [Member] Other current liabilities Other Current Liabilities [Member] 3.875% Notes due 2045 Three Point Eight Seventy Five Percent Notes Due 2045 [Member] Three Point Eight Seventy Five Percent Notes Due 2045 Currency exchange contracts Foreign Exchange Contract [Member] Finished product Inventory, Finished Goods, Gross Balance at January 1, 2021 (in dollars per share) Balance at June 30, 2021 (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Proceeds from divestitures including equity method investments Proceeds From Sale Of Equity Method Investments And Divestiture Of Businesses, Net Of Cash Divested Proceeds From Sale Of Equity Method Investments And Divestiture Of Businesses, Net Of Cash Divested Number of director positions Number Of Nominated Directors Number of Director, Right To Nominate Unusual or Infrequent Item, or Both [Axis] Unusual or Infrequent Item, or Both [Axis] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Weighted-average grant date fair value per share Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Percentage of equity method investment exchanged Sale of Stock, Percentage of Ownership before Transaction Effective tax rate Effective Income Tax Rate Reconciliation, Percent Net earnings Net earnings Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restricted cash Restricted Cash, Current Inventory reserves Inventory Valuation Reserves Settlement losses and other expenses Defined Benefit Plan, Settlement Gains (Losses) And Other Income (Expenses) Defined Benefit Plan, Settlement Gains (Losses) And Other Income (Expenses) Construction in progress Construction in Progress [Member] Class A Common Stock, no par value Common Class A [Member] Balance at beginning of period Balance at end of period Cash, cash equivalents and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents U.S. Plans UNITED STATES Number of shares of equity method investment sold (in shares) Sale of Stock, Number of Shares Issued in Transaction Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Cheese & Grocery Cheese and Grocery [Member] Cheese and Grocery [Member] Change in pension and postretirement assets and liabilities, net Increase Decrease In Pension Assets And Obligations And Postretirement Obligations The net change in the beginning and end of period Prepaid Pension costs and the net change during the reporting period in the amount due to fund pension and non-pension benefits to employees, retired and disabled former employees. Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Other Proceeds from (Payments for) Other Financing Activities Definite-life intangible assets Finite-Lived Intangible Assets, Gross Entity Central Index Key Entity Central Index Key Postemployment Benefit Plans Post Employment Benefit Plans [Member] Post Employment Benefit Plans [Member] Net investment hedge derivative contracts excluded from hedge effectiveness Amounts excluded from the assessment of hedge effectiveness Gain (Loss) on Components Excluded from Assessment of Foreign Currency Cash Flow Hedge Effectiveness Security Exchange Name Security Exchange Name Postemployment Benefits [Abstract] Postemployment Benefits [Abstract] Liability Derivatives Derivative Liability, Fair Value, Gross Liability Including Not Subject to Master Netting Arrangement Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Options exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Weighted-average shares for diluted EPS (in shares) Weighted Average Number of Shares Outstanding, Diluted Total other comprehensive earnings/(losses) Other comprehensive earnings/(losses), net of income taxes Other Comprehensive Income (Loss), Net of Tax Income Taxes Income Tax Disclosure [Text Block] Over-allotment option Over-Allotment Option [Member] Other receivables, allowances Allowance for Credit Loss, Receivable, Other, Current Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Stock Options Activity Share-based Payment Arrangement, Option, Activity [Table Text Block] Write-offs charged against the allowance Accounts Receivable, Allowance for Credit Loss, Writeoff Schedule of Components of Net Benefit Costs/(Credits) Schedule of Net Benefit Costs [Table Text Block] Measurement Basis [Axis] Measurement Basis [Axis] Total shareholders' equity, excluding accumulated other comprehensive earnings/(losses) Shareholders Equity Excluding Accumulated Other Comprehensive Earnings Losses Total shareholders' equity, excluding accumulated other comprehensive earnings / (losses) Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Asset Write-downs Asset Write Downs [Member] Asset Write-Downs [Member] Class of Stock [Line Items] Class of Stock [Line Items] Derivatives not designated as accounting hedges Not Designated as Hedging Instrument [Member] Credit Facility [Axis] Credit Facility [Axis] Impaired Assets to be Disposed of by Method Other than Sale [Table] Impaired Assets to be Disposed of by Method Other than Sale [Table] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Increase in approved capital expenditures Capital Expenditures, Authorized Amount, Increase Capital Expenditures, Authorized Amount, Increase Buildings and building improvements Building and Building Improvements [Member] Change in assets and liabilities, net of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other CASH PROVIDED BY/(USED IN) OPERATING ACTIVITIES Net Cash Provided by (Used in) Operating Activities [Abstract] Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Principles of Consolidation Consolidation, Policy [Policy Text Block] Schedule of Short-Term Borrowings and Related Weighted-Average Interest Rates Schedule of Short-term Debt [Table Text Block] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Total current liabilities Liabilities, Current Class of Stock [Domain] Class of Stock [Domain] Closing cash consideration Payments to Acquire Businesses, Gross Forecasted transactions Forecasted Transactions [Member] Forecasted Transactions [Member] United Kingdom and Ireland United Kingdom and Ireland [Member] United Kingdom and Ireland Facility Amount Line of Credit Facility, Maximum Borrowing Capacity Currency Goodwill, Foreign Currency Translation Gain (Loss) Number of countries in which products are sold (more than) Number Of Countries In Which Products Are Sold Number Of Countries In Which Products Are Sold Loss Contingencies [Table] Loss Contingencies [Table] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Reclassifications from Accumulated Other Comprehensive Income Disclosure of Reclassification Amount [Text Block] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Title of 12(b) Security Title of 12(b) Security Statement [Table] Statement [Table] Other current assets Other Assets, Current AMEA Asia, Middle East and Africa Segment [Member] Asia, Middle East and Africa Segment Restructuring and implementation charges Total Restructuring And Implementation Costs Restructuring and implementation costs, total After-tax gains/(losses) related to hedges of net investments in international operations Gain (Loss) on Derivative Used in Net Investment Hedge, after Tax New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Statistical Measurement [Axis] Statistical Measurement [Axis] Hedged forecasted transaction period Derivative, Remaining Maturity Incremental operating income (loss) from acquisition Business Combination, Pro Forma Information, Operating Income (Loss) Of Acquiree Since Acquisition Date, Actual Business Combination, Pro Forma Information, Operating Income (Loss) Of Acquiree Since Acquisition Date, Actual Subsequent Event Subsequent Event [Member] Cover [Abstract] Cover [Abstract] Additional options issued Group Two [Member] Group Two [Member] Each Additional Violation of the Commodity Exchange Act Additional [Member] Additional [Member] Goodwill Balance at January 1, 2021 Balance at June 30, 2021 Goodwill Actual tax benefit/(expense) realized for the tax deductions from the shares vested Share-Based Compensation, Tax Benefit Realized From Stock Awards Vesting Disclosure of the aggregate tax benefit realized from stock awards that vested. Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Cost of sales Cost of Sales [Member] Allowance for Long-Term Receivables Other Long-term Receivables [Member] Other Long-term Receivables Settlement losses and other expenses Accumulated Defined Benefit Plans Adjustment, Settlement Adjustments Attributable to Parent [Member] Accumulated Defined Benefit Plans Adjustment, Settlement Adjustments Attributable to Parent Schedule of Goodwill by Segment Schedule of Goodwill [Table Text Block] Scenario [Domain] Scenario [Domain] Adjustments to reconcile net earnings to operating cash flows: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Pension Plans Pension Plan [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Schedule of Fair Value of Derivatives Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Estimated future employer contributions over the remainder of 2021 Defined Benefit Plan, Expected Future Benefit Payment, Remainder of Fiscal Year Pension and Other Benefits Plans Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract] Deferred income tax provision/(benefit) Deferred Income Tax Expense (Benefit)