Basis of Presentation and Our Divisions (Segment Reporting Information by Total Assets and Capital Spending) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020	Dec. 28, 2019
Segment Reporting Information [Line Items]
Total Assets	$ 92,377	$ 92,918
Capital Spending	4,625	4,240	$ 4,232
Frito Lay North America [Member]
Segment Reporting Information [Line Items]
Total Assets	9,763	8,730
Capital Spending	1,411	1,189	1,227
Quaker Foods North America [Member]
Segment Reporting Information [Line Items]
Total Assets	1,101	1,021
Capital Spending	92	85	104
PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Total Assets	37,801	37,079
Capital Spending	1,275	1,245	1,053
Africa, Middle East and South Asia [Member]
Segment Reporting Information [Line Items]
Total Assets	6,125	5,942
Capital Spending	325	252	267
Asia Pacific, Australia and New Zealand, and China Region [Member]
Segment Reporting Information [Line Items]
Total Assets	5,654	5,770
Capital Spending	203	230	195
Latin America
Segment Reporting Information [Line Items]
Total Assets	7,272	6,977
Capital Spending	461	390	557
Europe
Segment Reporting Information [Line Items]
Total Assets	18,472	17,917
Capital Spending	752	730	613
Operating Segments [Member]
Segment Reporting Information [Line Items]
Total Assets	86,188	83,436
Capital Spending	4,519	4,121	4,016
Corporate
Segment Reporting Information [Line Items]
Total Assets	6,189	9,482
Capital Spending	$ 106	$ 119	$ 216