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Other than 2019 Productivity Plan Interest Rate Fair Value Hedge Liability at Fair Value Interest Rate Fair Value Hedge Liability at Fair Value Restructuring Plan [Axis] Restructuring Plan [Axis] Common stock, par value 12/3¢ per share (authorized 3,600 shares; issued, net of repurchased common stock at par value: 1,366 and 1,367 shares, respectively) Common Stock, Value, Issued Latin America Foods (Segment) [Member] Latin America Foods (Segment) [Member] Latin America Foods (Segment) Withholding tax payments on restricted stock units (RSUs) and performance stock units (PSUs) converted Payment, Tax Withholding, Share-Based Payment Arrangement Net interest expense and other Interest Expense, Operating and Nonoperating Payments for (Proceeds from) Short-term investments, three months or less, net Payments for (Proceeds from) Short-term investments, three months or less, net Payments for (Proceeds from) Short-term investments, three months or less, net Pension and Retiree Medical Benefits 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(Losses) Included in Cost of Sales Sales of property, plant and equipment Proceeds from Sale of Productive Assets Amendment Flag Amendment Flag Collateral Received or Posted against our Asset or Liability Positions Collateral Received or Posted against our Asset or Liability Positions Collateral Received or Posted against our Asset or Liability Positions Current Liabilities Liabilities, Current [Abstract] Restructuring and impairment charges Restructuring Costs and Asset Impairment Charges 0.875% Senior Notes Due 2028 Zero Point Eight Seven Five Percent Notes Due 2028 [Member] Zero Point Eight Seven Five Percent Notes Due 2028 [Member] Schedule of Notional Amounts of Financial Instruments Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Tax amounts Other Comprehensive Income, Other, Taxes Other Comprehensive Income, Other, Taxes Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Restructuring Charges, After Tax 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Instruments Asset, at Fair Value Net Cash Used for Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Acquisitions & Divestitures [Abstract] Acquisitions & Divestitures [Abstract] Acquisitions & Divestitures [Abstract] Total Financial Liabilities At Fair Value Total Financial Liabilities At Fair Value The fair value of the entity's total financial liabilities. Debt Instrument, Face Amount Debt Instrument, Face Amount Restructuring and Related Cost, Cost Incurred to Date Restructuring and Related Cost, Cost Incurred to Date Name of Exchange on which Security is Registered Security Exchange Name Cross-currency contracts - Liability Cross-currency contracts - Liability Cross-currency contracts - Liability Restructuring and Related Cost, Percentage of Expect Costs Restructuring and Related Cost, Percentage of Expect Costs Restructuring and Related Cost, Percentage of Expect Costs Derivatives designated as hedging instruments, Assets, Total Cash Flow Hedge Derivative Instrument Assets at Fair Value Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] PEP Equity Performance Unit PEP Equity Performance Unit [Member] Performance Stock Unit [Member] Fiscal Period, Policy Fiscal Period, Policy [Policy Text Block] Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent Supplier Finance Program Supplier Finance Program [Text Block] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Amounts reclassified from accumulated other comprehensive loss Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Net Income Attributable to PepsiCo per Common Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Beginning balance Ending balance AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax Net Income Attributable to PepsiCo per Common Share Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Asset Impairment Charges, after-tax Asset, Impairment Loss, after tax Asset, Impairment Loss, after tax Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Accounts and notes receivable Increase (Decrease) in Accounts and Notes Receivable Total Liabilities Liabilities Trading Symbol Trading Symbol Black Scholes valuation assumptions [Abstract] Black Scholes valuation assumptions [Abstract] Black Scholes valuation assumptions [Abstract] Cost of sales (a) Cost Of Goods And Services Sold - Restructuring [Member] Cost Of Goods And Services Sold - Restructuring Foreign Exchange Forward contracts Foreign Currency Cash Flow Hedge Liability at Fair Value Rockstar Rockstar [Member] Rockstar Geographical [Domain] Geographical [Domain] Other Indefinite-Lived Intangible Assets Intangible Asset, Excluding 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Diluted Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Cross-currency contracts Cross Currency Interest Rate Contract [Member] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Total identifiable net assets Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less) Underlying Security Market Price Change Underlying Security Market Price Change, Percent Net change on available-for-sale debt securities and other Other Comprehensive Income, Other, Net of Tax Deferred income taxes and other tax charges/credits Deferred Income Taxes and Tax Credits Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Short-term debt obligations Short-Term Debt Price Risk Cash Flow Hedge (Gain) Loss Reclassified to Earnings, Net Price Risk Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Line of Credit Facility, Current Borrowing Capacity Line of Credit Facility, Current Borrowing Capacity Defined Benefit Plan, Plan Assets, Contributions by Employer Defined Benefit Plan, Plan Assets, Contributions by Employer Gross profit Gross Profit Acquisitions & Divestitures [Line Items] Acquisitions & Divestitures [Line Items] [Line Items] for Acquisitions & Divestitures [Table] Foreign Exchange Forward contracts Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Asset at Fair Value Award Timing Predetermined Award Timing Predetermined [Flag] Total, AFS debt securities Total, AFS debt securities [Member] Total, AFS debt securities Repurchased Common Stock Treasury Stock, Common Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Debt Securities, Available-for-Sale [Line Items] Debt Securities, Available-for-Sale [Line Items] Percent Of Equity Awards Granted To Certain Senior Executives Percent Of Equity Awards Granted To Certain Senior Executives Percent Of Equity Awards Granted To Certain Senior Executives Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Share-based compensation expense APIC, Share-Based Payment Arrangement, Increase for Cost Recognition 1.125% Senior Notes Due 2031 One Point One Two Five Percent Notes Due 2031 [Member] One Point One Two Five Percent Notes Due 2031 [Member] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Business Combination, Contingent Consideration, Range of Outcomes, Minimum, Amount Business Combination, Contingent Consideration, Range of Outcomes, Minimum, Amount United States and Canada United States and Canada [Member] United States and Canada [Member] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Indefinite-lived Intangible Assets, Major Class Name [Domain] Intangible Asset, Indefinite-Lived, Class [Domain] Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Debt Securities, Available-for-Sale [Abstract] Debt Securities, Available-for-Sale [Abstract] Other pension and retiree medical benefits expense [Member] Other pension and retiree medical benefits expense [Member] Other pension and retiree medical benefits expense [Member] Selling, general and administrative expenses Selling, General and Administrative Expenses - Restructuring [Member] Selling, General and Administrative Expenses - Restructuring All Executive Categories All Executive Categories [Member] Foreign Exchange Forward contracts Foreign Currency Cash Flow Hedge Asset at Fair Value Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Net of taxes decrease to opening balance of accumulated other comprehensive loss attributable to Pepsico Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Post retirement Plans Taxes The total taxes related to net (gain) loss, prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost. Accounting Changes and Error Corrections [Abstract] Accounting Changes and Error Corrections [Abstract] Schedule of Basic And Diluted Net Income Per Common Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] PepsiCo Beverages North America [Member] PepsiCo Beverages North America [Member] PepsiCo Beverages North America [Member] Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Beginning balance Ending balance Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax More than three months - maturities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-Sale Investment Type [Axis] Investment Type [Axis] Expiration Date Trading Arrangement Expiration Date Derivative Instruments, (Gain) Loss by Hedging Relationship Hedging Relationship [Axis] Summary of Segment Reporting Information by Percentage of Disaggregated Net Revenue Disaggregation of Revenue [Table Text Block] Effect of exchange rate changes on cash and cash equivalents and restricted cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total Equity Balance, beginning of period Balance, end of period Equity, Including Portion Attributable to Noncontrolling Interest Notes Due 2038 Notes Due 2038 [Member] Notes Due 2038 Disaggregation of Net Revenue - Convenient Food Disaggregation of Net Revenue - Convenient Food Disaggregation of Net Revenue - Convenient Food Aggregate Grant Date Fair Value of Equity Award Amounts 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Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Segment Reporting [Line Items] Segment Reporting [Line Items] Acquired Franchise Rights Acquired Franchise Rights [Member] Acquired Franchise Rights [Member] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Interest Rate Swap [Member] Interest Rate Swap [Member] Asia Pacific Foods (Segment) [Member] Asia Pacific Foods (Segment) [Member] Asia Pacific Foods (Segment) Proceeds from Sale of Debt Securities, 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Interest Rate Contract Matured Notional Amount of USD for EUR Cross Currency Interest Rate Contract [Member] Matured Notional Amount of USD for EUR Cross Currency Interest Rate Contract PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Foreign Currency Contract, Asset, Fair Value Disclosure Foreign Currency Contract, Asset, Fair Value Disclosure Foreign Exchange Contract Foreign Exchange Contract [Member] Adoption Date Trading Arrangement Adoption Date Impairment and Other Charges - after tax Impairment and Other Charges - after tax Impairment and Other Charges - after tax Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Text Block [Abstract] Cash dividends declared - common Dividends, Common Stock, Cash Total PepsiCo Common Shareholders’ Equity Equity, Attributable to Parent Short-term investments, by original maturity: Short-Term Investments [Abstract] Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement Restructuring Type [Axis] Restructuring Type [Axis] Total, AFS debt securities [Axis] Total, AFS debt securities [Axis] Total, AFS debt securities ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Foreign Currency Cash Flow Hedge (Gain) Loss Reclassified to Earnings, Net Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Insider Trading Policies and Procedures [Line Items] Accounts and notes receivable, allowance Accounts Receivable, Allowance for Credit Loss, Current Other financing Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Celsius & Other AFS Derivative Instruments, Loss (Gain) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Selling, general and administrative expenses Selling, General and Administrative Expense Business Combination [Domain] Business Combination [Domain] Type of Restructuring [Domain] Type of Restructuring [Domain] Impairment Effect on Earnings Per Share, after Tax Impairment Effect on Earnings Per Share, after Tax Foreign Exchange Forward contracts Foreign Currency Derivative Instruments Not Designated as Hedging Instruments, Liability at Fair Value Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Fair Value Hedge, (Gain) Loss on Interest Rate Swap Contract Fair Value Hedge, Gain (Loss) on Interest Rate Swap Contract Fair Value Hedge, Gain (Loss) on Interest Rate Swap Contract Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount RSUs and PSUs Restricted Stock Units (RSUs) [Member] Entity Central Index Key Entity Central Index Key Accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Capital in excess of par value Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Other, net Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Other Item Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Business Combination [Axis] Business Combination [Axis] More than three months - proceeds Proceeds from Short-Term Debt, Maturing in More than Three Months Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net Cash Provided by Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Celsius, AFS debt securities [Domain] Celsius, AFS debt securities [Domain] Celsius, AFS debt securities [Domain] Legal Matters and Contingencies Legal Matters and Contingencies [Text Block] Reacquired Franchise Rights Reacquired Franchise Rights [Member] Reacquired Franchise Rights [Member] Other, net Stockholders' Equity, Other PepsiCo Common Shareholders’ 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Amount, Change in Designation Non-derivative, Notional Amount, Change in Designation Non-derivative, Notional Amount, Change in Designation Retirement Plan Type [Domain] Retirement Plan Type [Domain] Capital in Excess of Par Value Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Supplemental Non-Cash Activity Supplemental Cash Flow Elements [Abstract] 3.300% Senior Notes Due 2034 Three Point Three Percent Notes Due 2034 [Member] Three Point Three Percent Notes Due 2034 Indefinite-lived Intangible Assets [Axis] Intangible Asset, Indefinite-Lived, Class [Axis] Short-term investments Short-term Investments Short-Term Investments Credit-Risk-Related Contingent Features Triggered Credit-Risk-Related Contingent Features Triggered Credit-Risk-Related Contingent Features Triggered Celsius, AFS debt security Celsius, AFS debt security [Member] Celsius, AFS debt security Business Combination, Contingency Recognized at Acquisition Date, Liability Assumed, Fair Value 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[Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Schedule of Debt Issuances Schedule of Debt Issuances [Table Text Block] Schedule of Debt Issuances [Table Text Block] Notional Amount of THB for USD Cross Currency Interest Rate Contract Notional Amount of THB for USD Cross Currency Interest Rate Contract [Member] Notional Amount of THB for USD Cross Currency Interest Rate Contract Derivatives Designated As Fair Value Hedging Instruments Liabilities [Member] Derivatives Designated As Fair Value Hedging Instruments Liabilities [Member] Derivatives Designated As Fair Value Hedging Instruments Liabilities [Member] Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Current Assets Assets, Current [Abstract] Total Financial Assets At Fair Value Total Financial Assets At Fair Value The fair value of the entity's total financial assets. Derivative Liability Derivative Liability Non-PEO NEO Non-PEO NEO [Member] Amortization of net losses Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, before Tax Entity Address, Address Line One Entity Address, Address Line One Right-of-use assets obtained in exchange for lease obligations Right-of-Use Asset Obtained in Exchange for Operating Lease Liability North America North America [Member] Provision for income taxes Income Tax Expense (Benefit) Fair Value Hedging Fair Value Hedging [Member] Dilutive Securities [Abstract] Dilutive Securities, Effect on Basic Earnings Per Share [Abstract] Percent of Liability Awards Granted to Certain Senior Executives Percent of Liability Awards Granted to Certain Senior Executives Percent of liability awards granted Certain Senior Executives Cost of sales Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Net Increase/(Decrease) in Cash and Cash Equivalents and Restricted Cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Cross Currency Contracts Cash Flow Hedge (Gain) Loss Reclassified to Earnings, Net Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net Accounts and Financing Receivable, after Allowance for Credit Loss, Current Accounts and Financing Receivable, after Allowance for Credit Loss, Current Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Business Combination, Contingent Consideration, Range of Outcomes, Maximum, Amount Defined Benefit Plan, Amortization of Gain (Loss) Defined Benefit Plan, Amortization of Gain (Loss) Recently Issued Accounting Pronouncements Accounting Standards Update and Change in Accounting Principle [Text Block] Net Income Attributable to PepsiCo Net income attributable to PepsiCo Net Income (Loss) Attributable to Parent Fair Value, Recurring Basis, Unobservable Input Reconciliation, Asset (Liability), Gain (Loss), OCI Fair Value, Recurring Basis, Unobservable Input Reconciliation, Asset (Liability), Gain (Loss), OCI Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Proceeds from exercises of stock options Proceeds from Stock Options Exercised Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Net Investment Hedges Derivative Instruments and Hedging Activities Disclosures [Line Items] Acquisition and divestiture-related charges [Axis] Acquisition and divestiture-related charges [Axis] Acquisition and divestiture-related charges Commodity Contracts Price Risk Cash Flow Hedge Asset, at Fair Value Selling, General and Administrative Expenses - AOCL Selling, General and Administrative Expenses - AOCL [Member] Selling, General and Administrative Expenses - AOCL Derivatives Designated As Fair Value Hedging Instruments Assets [Member] Derivatives Designated As Fair Value Hedging Instruments Assets [Member] Derivatives Designated As Fair Value Hedging Instruments Assets 3.700% Senior Notes Due 2038 3.700% Notes Due February 2038 [Member] Three Point Seven Percent Notes Due 2038 [Member] Three Point Seven Percent Notes Due 2038 Collateral Already Posted, Aggregate Fair Value Collateral Already Posted, Aggregate Fair Value Assets Assets [Member] Unusual or Infrequent Item, or Both [Line Items] Unusual or Infrequent Item, or Both [Line Items] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]