Restructuring and Impairment Charges Restructuring and Impairment Charges (Summary of 2014 Productivity Plan Charges (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
		Mar. 23, 2019	Mar. 24, 2018
Restructuring Cost and Reserve [Line Items]
Payments for Restructuring		$ 52	$ 39
Selling, General and Administrative Expense		5,188	5,100
2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost		1,300
Restructuring and Related Cost, Expected Cash Expenditures		960
Payments for Restructuring		42
Restructuring Reserve		$ 70
Selling, General and Administrative Expense			8
Restructuring, Settlement and Impairment Provisions			12
Restructuring, Settlement and Impairment Provisions, After Tax			$ 11
Restructuring, Settlement and Impairment Provisions, Net of Tax, Per Share Amount			$ 0.01
Frito Lay North America [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			$ 5
Quaker Foods North America [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			1
PepsiCo Beverages North America [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			3
Latin America [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			9
Europe Sub-Saharan Africa [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			4
Asia Middle East and North Africa | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			2
Corporate, Non-Segment [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	[1]		(12)
Pension Costs [Member] | 2014 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions			$ 4

[1] Income amount represents adjustments for changes in estimates of previously recorded amounts.