Restructuring and Impairment Charges - (Summary of 2019 Productivity Plan Charges) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 23, 2024	Mar. 25, 2023
Restructuring Cost and Reserve [Line Items]
Cash payments	$ (60)	$ (64)
2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Liability as of December 30, 2023	197
2024 restructuring charges	96	$ 112
Cash payments	(60)
Non-cash charges and translation	(7)
Liability as of March 23, 2024	$ 226
Impact on net income attributable to PepsiCo per common share	$ (0.05)	$ (0.07)
Restructuring and Related Cost, Cost Incurred to Date	$ 1,996
2019 Productivity Plan | FLNA
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	22	$ 7
Restructuring and Related Cost, Cost Incurred to Date	274
2019 Productivity Plan | QFNA
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	4	0
Restructuring and Related Cost, Cost Incurred to Date	23
2019 Productivity Plan | PBNA
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	10	5
Restructuring and Related Cost, Cost Incurred to Date	277
2019 Productivity Plan | AMESA
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	0	5
Restructuring and Related Cost, Cost Incurred to Date	97
2019 Productivity Plan | APAC
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	0	1
Restructuring and Related Cost, Cost Incurred to Date	85
2019 Productivity Plan | LatAm
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	5	5
Restructuring and Related Cost, Cost Incurred to Date	205
2019 Productivity Plan | Europe
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	18	89
Restructuring and Related Cost, Cost Incurred to Date	584
Other than 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	0
Corporate | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	30	1
Restructuring and Related Cost, Cost Incurred to Date	347
Severance and Other Employee Costs | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Liability as of December 30, 2023	188
2024 restructuring charges	72	92
Cash payments	(39)
Non-cash charges and translation	(5)
Liability as of March 23, 2024	216
Restructuring and Related Cost, Cost Incurred to Date	1,122
Asset Impairments | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Liability as of December 30, 2023	0
2024 restructuring charges	1	0
Cash payments	0
Non-cash charges and translation	(1)
Liability as of March 23, 2024	0
Restructuring and Related Cost, Cost Incurred to Date	193
Other Costs | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
Liability as of December 30, 2023	9
2024 restructuring charges	23	20
Cash payments	(21)
Non-cash charges and translation	(1)
Liability as of March 23, 2024	10
Restructuring and Related Cost, Cost Incurred to Date	681
Cost of sales | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	6	3
Selling, general and administrative expenses | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	83	110
Other pension and retiree medical benefits expense/(income) (a) | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	7	(1)
Restructuring and Related Cost, Cost Incurred to Date	104
Restructuring, Settlement and Impairment Provisions, less Other pension and retiree medical benefits expense | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	89	113
Restructuring and Related Cost, Cost Incurred to Date	1,892
After-tax amount | 2019 Productivity Plan
Restructuring Cost and Reserve [Line Items]
2024 restructuring charges	$ 76	$ 98