Basis of Presentation and Our Divisions Basis of Presentation and Our Divisions (Share-Based Compensation Expense) (Details)	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Frito Lay North America [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	13.00%	13.00%	13.00%
Quaker Foods North America [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	1.00%	1.00%	1.00%
PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	17.00%	18.00%	18.00%
Latin America [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	7.00%	8.00%	7.00%
Europe [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	17.00%	9.00%	9.00%
Africa, Middle East and South Asia [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	3.00%	4.00%	5.00%
Asia Pacific, Australia and New Zealand, and China Region [Member]
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	5.00%	4.00%	4.00%
Corporate
Segment Reporting Information [Line Items]
Share Based Compensation Percentage Allocation by Division	37.00%	43.00%	43.00%