Basis of Presentation and Our Divisions (Segment Reporting Information by Amortization of Intangible Assets and Depreciation and Other Amortization) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	$ 81	$ 69	$ 68
Depreciation and Other Amortization	2,351	2,330	2,301
Frito Lay North America [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	7	7	7
Depreciation and Other Amortization	492	457	449
Quaker Foods North America [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	0	0	0
Depreciation and Other Amortization	44	45	47
PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	29	31	31
Depreciation and Other Amortization	857	821	780
Latin America [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	5	5	5
Depreciation and Other Amortization	270	253	245
Europe [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	37	23	22
Depreciation and Other Amortization	341	319	317
Africa, Middle East and South Asia [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	2	2	2
Depreciation and Other Amortization	116	169	170
Asia Pacific, Australia and New Zealand, and China Region [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	1	1	1
Depreciation and Other Amortization	76	80	99
Operating Segments [Member]
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	81	69	68
Depreciation and Other Amortization	2,196	2,144	2,107
Corporate
Segment Reporting Information [Line Items]
Amortization of Intangible Assets	0	0	0
Depreciation and Other Amortization	$ 155	$ 186	$ 194