Segment Reporting Information by Operating Profit (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 12, 2021	Jun. 13, 2020	Jun. 12, 2021	Jun. 13, 2020
Segment Reporting Information [Line Items]
Operating Profit	$ 3,129	$ 2,319	$ 5,441	$ 4,243
Debt and Equity Securities, Realized Gain (Loss)	(39)		69
Debt and Equity Securities, Realized Gain (Loss) - After Tax	$ (30)		$ 52
Debt and Equity Securities, Realized Gain (Loss) - After Tax PerShare	$ (0.02)		$ 0.04
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Profit	$ 3,528	2,689	$ 5,979	4,991
Corporate Unallocated [Member]
Segment Reporting Information [Line Items]
Operating Profit	(399)	(370)	(538)	(748)
Frito Lay North America [Member]
Segment Reporting Information [Line Items]
Operating Profit	1,382	1,278	2,622	2,480
Quaker Foods North America [Member]
Segment Reporting Information [Line Items]
Operating Profit	128	196	278	346
PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Operating Profit	809	397	1,175	694
Latin America (Segment)
Segment Reporting Information [Line Items]
Operating Profit	356	219	574	450
Europe (Segment)
Segment Reporting Information [Line Items]
Operating Profit	405	351	536	497
Africa, Middle East and South Asia [Member]
Segment Reporting Information [Line Items]
Operating Profit	256	59	394	193
Asia Pacific, Australia and New Zealand, and China Region [Member]
Segment Reporting Information [Line Items]
Operating Profit	$ 192	$ 189	$ 400	$ 331