Restructuring and Impairment Charges Restructuring and Impairment Charges (Summary of 2019 Productivity Plan Charges) (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
		Mar. 23, 2019	Mar. 24, 2018	Dec. 29, 2018
Restructuring Cost and Reserve [Line Items]
Cost of sales		$ 5,688	$ 5,655
Selling, General and Administrative Expense		5,188	5,100
Payments for Restructuring		(52)	(39)
Payment for Pension and Other Postretirement Benefits		260	$ 1,521
2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Cost of sales		8
Selling, General and Administrative Expense		23
Restructuring, Settlement and Impairment Provisions		26
Restructuring, Settlement and Impairment Provisions, After Tax		$ 23
Restructuring, Settlement and Impairment Provisions, Net of Tax, Per Share Amount		$ 0.02
Restructuring, Settlement and Impairment Provisions, less Other pension and retiree medical benefits expense		$ 31
Restructuring, Settlement and Impairment Provisions, less Other pension and retiree medical benefits expense, costs incurred to date		134
Restructuring and Related Cost, Cost Incurred to Date		164
Restructuring Reserve		123		$ 106
Payments for Restructuring	[1]	(10)
Restructuring Reserve, Settled without Cash		1
Payment for Pension and Other Postretirement Benefits		2
2019 Productivity Plan [Member] | Pension Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	[2]	(5)
Restructuring and Related Cost, Cost Incurred to Date		30
2019 Productivity Plan [Member] | Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions	[2]	(3)
Restructuring and Related Cost, Cost Incurred to Date		134
Restructuring Reserve		101		105
Payments for Restructuring	[1]	(7)
Restructuring Reserve, Settled without Cash		6
2019 Productivity Plan [Member] | Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		8
Restructuring and Related Cost, Cost Incurred to Date		8
Restructuring Reserve		0		0
Payments for Restructuring		0
Restructuring Reserve, Settled without Cash		(8)
2019 Productivity Plan [Member] | Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		21
Restructuring and Related Cost, Cost Incurred to Date	[3]	22
Restructuring Reserve		22		$ 1
Payments for Restructuring	[1]	(3)
Restructuring Reserve, Settled without Cash		3
2019 Productivity Plan [Member] | Frito Lay North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0
Restructuring and Related Cost, Cost Incurred to Date		31
2019 Productivity Plan [Member] | Quaker Foods North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0
Restructuring and Related Cost, Cost Incurred to Date		5
2019 Productivity Plan [Member] | PepsiCo Beverages North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		6
Restructuring and Related Cost, Cost Incurred to Date		46
2019 Productivity Plan [Member] | Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		0
Restructuring and Related Cost, Cost Incurred to Date		9
2019 Productivity Plan [Member] | Europe Sub-Saharan Africa [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		6
Restructuring and Related Cost, Cost Incurred to Date		14
2019 Productivity Plan [Member] | Asia Middle East and North Africa
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		11
Restructuring and Related Cost, Cost Incurred to Date		14
2019 Productivity Plan [Member] | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring, Settlement and Impairment Provisions		8
Restructuring and Related Cost, Cost Incurred to Date		$ 15

[1] Excludes cash expenditures of $2 million reported in the cash flow statement in pension and retiree medical contributions.

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

[3] Includes other costs associated with the implementation of our initiatives, including contract termination costs, consulting and other professional fees.