Basis of Presentation and Our Divisions (Schedule of Segment Reporting Information, by Segment) (Details) - USD ($) $ in Millions	3 Months Ended						4 Months Ended		12 Months Ended
	Sep. 07, 2019	Jun. 15, 2019	Mar. 23, 2019	Sep. 08, 2018	Jun. 16, 2018	Mar. 24, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Segment Reporting Information [Line Items]
Net Revenue	$ 17,188	$ 16,449	$ 12,884	$ 16,485	$ 16,090	$ 12,562	$ 20,640	$ 19,524	$ 67,161	$ 64,661	$ 63,525
Operating Profit	$ 2,855	$ 2,729	$ 2,008	$ 2,844	$ 3,028	$ 1,807	$ 2,699	$ 2,431	$ 10,291	10,110	10,276
Disaggregation of Net Revenue - Food/Snack									55.00%
Disaggregation of beverage revenue from company-owned bottlers									40.00%
Frito Lay North America [Member]
Segment Reporting Information [Line Items]
Net Revenue									$ 17,078	16,346	15,798
Operating Profit									5,258	5,008	4,793
Quaker Foods North America [Member]
Segment Reporting Information [Line Items]
Net Revenue									2,482	2,465	2,503
Operating Profit									544	637	640
PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Net Revenue									21,730	21,072	20,936
Operating Profit									2,179	2,276	2,700
Latin America [Member]
Segment Reporting Information [Line Items]
Net Revenue									7,573	7,354	7,208
Operating Profit									$ 1,141	1,049	924
Disaggregation of Net Revenue - Food/Snack									90.00%
Europe [Member]
Segment Reporting Information [Line Items]
Net Revenue									$ 11,728	10,973	10,522
Operating Profit									$ 1,327	1,256	1,199
Disaggregation of Net Revenue - Beverages									55.00%
Disaggregation of Net Revenue - Food/Snack									45.00%
Africa, Middle East and South Asia [Member]
Segment Reporting Information [Line Items]
Net Revenue									$ 3,651	3,657	3,674
Operating Profit									$ 671	661	789
Disaggregation of Net Revenue - Beverages									40.00%
Disaggregation of Net Revenue - Food/Snack									60.00%
Asia Pacific, Australia and New Zealand, and China Region [Member]
Segment Reporting Information [Line Items]
Net Revenue									$ 2,919	2,794	2,884
Operating Profit									$ 477	619	401
Disaggregation of Net Revenue - Beverages									25.00%
Disaggregation of Net Revenue - Food/Snack									75.00%
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Profit									$ 11,597	11,506	11,446
Corporate
Segment Reporting Information [Line Items]
Net Revenue									0	0	0
Operating Profit									$ (1,306)	$ (1,396)	$ (1,170)