Restructuring and Impairment Charges (Summary of 2019 Productivity Plan Charges) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 11, 2022	Jun. 12, 2021	Jun. 11, 2022	Jun. 12, 2021
Restructuring Cost and Reserve [Line Items]
Cash payments			$ (82)	$ (104)
2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Liability as of December 25, 2021			71
Restructuring Charges	$ 48	$ 34	75	$ 77
Cash payments			(82)
Non-cash charges and translation			(4)
Liability as of June 11, 2022	$ 60		$ 60
Impact on net income attributable to PepsiCo per common share	$ (0.03)	$ (0.02)	$ (0.04)	$ (0.05)
Restructuring and Related Cost, Cost Incurred to Date	$ 1,119		$ 1,119
2019 Productivity Plan [Member] | Frito Lay North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	3	$ 3	6	$ 18
Restructuring and Related Cost, Cost Incurred to Date	170		170
2019 Productivity Plan [Member] | Quaker Foods North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	0	0	0
Restructuring and Related Cost, Cost Incurred to Date	12		12
2019 Productivity Plan [Member] | PepsiCo Beverages North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	2	1	5	5
Restructuring and Related Cost, Cost Incurred to Date	163		163
2019 Productivity Plan [Member] | Africa, Middle East and South Asia [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	3	3	5	4
Restructuring and Related Cost, Cost Incurred to Date	75		75
2019 Productivity Plan [Member] | Asia Pacific, Australia and New Zealand, and China Region [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	3	1	4	1
Restructuring and Related Cost, Cost Incurred to Date	65		65
2019 Productivity Plan [Member] | Latin America (Segment)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	8	6	14	8
Restructuring and Related Cost, Cost Incurred to Date	153		153
2019 Productivity Plan [Member] | Europe (Segment)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	12	15	19	26
Restructuring and Related Cost, Cost Incurred to Date	253		253
Other than 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Charges			0
Corporate Unallocated [Member] | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	14	6	19	10
Restructuring and Related Cost, Cost Incurred to Date	158		158
Severance and Other Employee Costs | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Liability as of December 25, 2021			64
Restructuring Charges	20	15	31	49
Cash payments			(37)
Non-cash charges and translation			(3)
Liability as of June 11, 2022	55		55
Restructuring and Related Cost, Cost Incurred to Date	595		595
Asset Impairments | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	1	0	1
Restructuring and Related Cost, Cost Incurred to Date	157		157
Other Costs | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Liability as of December 25, 2021			7
Restructuring Charges	28	18	44	27
Cash payments			(45)
Non-cash charges and translation			(1)
Liability as of June 11, 2022	5		5
Restructuring and Related Cost, Cost Incurred to Date	367		367
Cost of sales | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	0	2	5	4
Selling, General and Administrative Expenses [Member] | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	45	33	67	68
Other pension and retiree medical benefits expense/(income) | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	3	(1)	3	5
Restructuring and Related Cost, Cost Incurred to Date	70		70
After-tax amount | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	40	29	61	64
Restructuring, Settlement and Impairment Provisions, less Other pension and retiree medical benefits expense [Member] | 2019 Productivity Plan [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	45	$ 35	72	$ 72
Restructuring and Related Cost, Cost Incurred to Date	$ 1,049		$ 1,049