Accumulated Other Comprehensive Loss Attributable to PepsiCo - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended						8 Months Ended
	Sep. 03, 2022	Jun. 11, 2022	Mar. 19, 2022	Sep. 04, 2021	Jun. 12, 2021	Mar. 20, 2021	Sep. 03, 2022	Sep. 04, 2021
Reclassification Adjustments out of Accumulated Other Comprehensive Income [Line Items]
Amounts reclassified from accumulated other comprehensive loss	$ 0	$ 0	$ 0	$ 0	$ 0	$ 18	$ 0	$ 18
Cash flow hedges:
Amounts reclassified from accumulated other comprehensive loss	44	(30)	(62)	14	(53)	(1)	(48)	(40)
Tax amounts	(12)			(3)			5	10
Net losses/(gains) after tax	32			11			(43)	(30)
Pension and retiree medical items:
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), Reclassification Adjustment from AOCI, before Tax	(9)			(10)			(26)	(30)
Amortization of net losses	40			67			114	196
Settlement/curtailment losses	59			10			188	10
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, before Tax	90	161	25	67	57	52	276	176
Tax amounts	(19)			(14)			(60)	(37)
Net losses after tax	71			53			216	139
Total net losses reclassified, net of tax	103			64			173	127
Net other comprehensive (loss)/income	(147)	(137)	138	(31)	122	96
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax	(44)	$ 30	$ 62	(14)	$ 53	$ 1	48	40
Tax amounts	(12)			(3)			5	10
Net losses/(gains) after tax	32			11			(43)	(30)
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement
Cash flow hedges:
Losses/(gains) on cash flow hedges	44			14			(48)	(40)
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Foreign exchange contracts
Cash flow hedges:
Losses/(gains) on cash flow hedges	1			27			(20)	67
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Foreign exchange contracts | Revenue, Net
Cash flow hedges:
Losses/(gains) on cash flow hedges	(5)			2			(9)	6
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Foreign exchange contracts | Cost of sales
Cash flow hedges:
Losses/(gains) on cash flow hedges	6			25			(11)	61
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Interest rate derivatives
Cash flow hedges:
Losses/(gains) on cash flow hedges	94			53			175	2
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Commodity contracts
Cash flow hedges:
Losses/(gains) on cash flow hedges	(51)			(66)			(203)	(109)
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Commodity contracts | Cost of sales
Cash flow hedges:
Losses/(gains) on cash flow hedges	(45)			(65)			(191)	(108)
Losses/ (Gaines) Reclassed from Accumulated Other Comprehensive Loss into Income Statement | Commodity contracts | Selling, general and administrative expenses
Cash flow hedges:
Losses/(gains) on cash flow hedges	$ (6)			$ (1)			$ (12)	$ (1)