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. 29, 2018		Dec. 30, 2017	Dec. 31, 2016
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	[1]	1,429	[2]	1,481	1,743
Weighted-average grant-date fair value of options granted		$ 9.80		$ 8.25	$ 6.94
Total intrinsic value of options exercised (a)	[1]	$ 224,663		$ 327,860	$ 290,131
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested in Period, Fair Value	[1]	15,506		23,122	$ 18,840
LiabilityAwards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
LiabilityAwardsNonvestedNumber	[3]	54,710	[4]	$ 33,200
LiabilityAwardsNonvestedBalanceSheetFairValue	[3],[4]	$ 55,809
LiabilityAwardsNonvestedRemainingContractualTerm		1 year 2 months 19 days
Equity Instruments Other Than Options
LiabilityAwardsGranted	[3],[5]	$ 20,926
LiabilityAwardsForfeituresExpirations	[3]	$ (2,292)
Share-based Compensation Arrangement by Share-Based Payment Award, Equity instruments other than options, Performance Assumption Adjustment, Shares	[3],[6]	2,876
LiabilityAwardsExpectedtoVest,Outstanding,Number	[3]	$ 51,159
LiabilityAwardsExpectedtoVest,BalanceSheetFairValue	[3]	$ 52,148
LiabilityAwardsExpectedtoVest,RemainingContractualTerm		1 year 2 months 1 day
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	[1]	2,634		2,824	3,054
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value		$ 108.75	[7]	$ 109.92	$ 99.06
Total intrinsic value of converted units	[1]	$ 260,287		$ 380,269	$ 359,401
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	[1]	232,141		264,923	257,648
PepsiCo Equity Performance Unit [Domain]
Equity Instruments Other Than Options
Total intrinsic value of converted units	[1]	30,147		39,782	38,558
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	[1]	9,430		$ 18,833	$ 16,572
Minimum Award Level [Domain] | PEP_LiabilityAwardsPerformanceBased [Member]
Equity Instruments Other Than Options
LiabilityAwardsPerformanceAssumptionAdjustmentAwardsOutstanding		0
Maximum | PEP_LiabilityAwardsPerformanceBased [Member]
Equity Instruments Other Than Options
LiabilityAwardsPerformanceAssumptionAdjustmentAwardsOutstanding		74,500
Target Award Level [Domain] [Domain] | PEP_LiabilityAwardsPerformanceBased [Member]
Equity Instruments Other Than Options
LiabilityAwardsPerformanceAssumptionAdjustmentAwardsOutstanding		$ 37,300

[1] In thousands

[2] Options are in thousands and include options previously granted under the PBG plan. No additional options or shares were granted under the PBG plan after 2009.

[3] In thousands.

[4] The outstanding long-term cash awards for which the performance period has not ended as of December 29, 2018, at the threshold, target and maximum award levels were zero, 37.3 million and 74.5 million, respectively.

[5] Grant activity for all long-term cash awards are disclosed at target.

[6] Reflects the net number of long-term cash awards above and below target levels based on actual performance measured at the end of the performance period.

[7] Grant activity for all PSUs are disclosed at target.