Share-Based Compensation Share-Based Compensation (Other Stock-Based Compensation Data) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	1,286	1,429	1,481
Weighted-average grant-date fair value of options granted	$ 10.89	$ 9.80	$ 8.25
Total intrinsic value of options exercised (a)	$ 275,745	$ 224,663	$ 327,860
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	9,838	15,506	$ 23,122
LiabilityAwards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
LiabilityAwardsNonvestedNumber	44,224	$ 54,710
LiabilityAwardsNonvestedBalanceSheetFairValue	$ 45,875
LiabilityAwardsNonvestedRemainingContractualTerm	1 year 1 month 6 days
Equity Instruments Other Than Options
LiabilityAwardsGranted	$ 16,112
Liability Awards Vested	(15,438)
LiabilityAwardsForfeituresExpirations	$ (9,465)
Share-based Compensation Arrangement by Share-Based Payment Award, Equity instruments other than options, Performance Assumption Adjustment, Shares	(1,695)
LiabilityAwardsExpectedtoVest,Outstanding,Number	$ 42,998
LiabilityAwardsExpectedtoVest,BalanceSheetFairValue	$ 44,557
LiabilityAwardsExpectedtoVest,RemainingContractualTerm	1 year 1 month 6 days
Restricted Stock Units (RSUs)
Equity Instruments Other Than Options
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	2,754	2,634	2,824
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 116.87	$ 108.75	$ 109.92
Total intrinsic value of converted units	$ 333,951	$ 260,287	$ 380,269
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	275,234	232,141	264,923
PepsiCo Equity Performance Unit [Domain]
Equity Instruments Other Than Options
Total intrinsic value of converted units	0	30,147	39,782
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	0	$ 9,430	$ 18,833
Minimum Award Level [Domain] \| PEP_LiabilityAwardsPerformanceBased [Member]
Equity Instruments Other Than Options
LiabilityAwardsPerformanceAssumptionAdjustmentAwardsOutstanding	0
Maximum \| PEP_LiabilityAwardsPerformanceBased [Member]
Equity Instruments Other Than Options
LiabilityAwardsPerformanceAssumptionAdjustmentAwardsOutstanding	57,100
Target Award Level [Domain] [Domain] \| PEP_LiabilityAwardsPerformanceBased [Member]
Equity Instruments Other Than Options
LiabilityAwardsPerformanceAssumptionAdjustmentAwardsOutstanding	$ 28,500

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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