Segment Reporting Information by Net Revenue and Operating Profit (Detail) $ in Millions	3 Months Ended
Mar. 21, 2020 USD ($) segment	Mar. 23, 2019 USD ($)
Segment Reporting Information [Line Items]
Number of Reportable Segments \| segment	7
Net Revenue	$ 13,881	$ 12,884
Operating Profit	$ 1,924	$ 2,008
Disaggregation of Net Revenue - Beverages	45.00%
Disaggregation of Net Revenue - Food/Snack	55.00%	55.00%
Disaggregation of beverage revenue from company-owned bottlers	40.00%	40.00%
Charges Related to Novel Coronavirus (COVID-19)	$ 143
Accounts Receivable, Credit Loss Expense (reversal) Novel Coronavirus (COVID-19) Impact	68
Inventory Write-down Novel Coronavirus (COVID-19) Impact	26
Charges Related to Novel Coronavirus (COVID-19) Impact - Other	5
Frito Lay North America [Member]
Segment Reporting Information [Line Items]
Net Revenue	4,074	$ 3,815
Operating Profit	1,202	1,159
Accounts Receivable, Credit Loss Expense (reversal) Novel Coronavirus (COVID-19) Impact	21
Inventory Write-down Novel Coronavirus (COVID-19) Impact	3
Charges Related to Novel Coronavirus (COVID-19) Impact - Other	3
Quaker Foods North America [Member]
Segment Reporting Information [Line Items]
Net Revenue	634	594
Operating Profit	150	138
Accounts Receivable, Credit Loss Expense (reversal) Novel Coronavirus (COVID-19) Impact	2
PepsiCo Beverages North America [Member]
Segment Reporting Information [Line Items]
Net Revenue	4,838	4,510
Operating Profit	297	389
Accounts Receivable, Credit Loss Expense (reversal) Novel Coronavirus (COVID-19) Impact	41
Prepaid Incentives Novel Coronavirus (COVID-19 ) Impact	44
Inventory Write-down Novel Coronavirus (COVID-19) Impact	22
Charges Related to Novel Coronavirus (COVID-19) Impact - Other	1
Latin America [Member]
Segment Reporting Information [Line Items]
Net Revenue	1,310	1,241
Operating Profit	$ 231	$ 230
Disaggregation of Net Revenue - Food/Snack	90.00%	90.00%
Europe [Member]
Segment Reporting Information [Line Items]
Net Revenue	$ 1,839	$ 1,620
Operating Profit	$ 146	$ 115
Disaggregation of Net Revenue - Beverages	55.00%	55.00%
Disaggregation of Net Revenue - Food/Snack	45.00%	45.00%
Accounts Receivable, Credit Loss Expense (reversal) Novel Coronavirus (COVID-19) Impact	$ 4
Africa, Middle East and South Asia [Member]
Segment Reporting Information [Line Items]
Net Revenue	631	$ 579
Operating Profit	$ 134	$ 105
Disaggregation of Net Revenue - Beverages	35.00%	35.00%
Disaggregation of Net Revenue - Food/Snack	65.00%	65.00%
Asia Pacific, Australia and New Zealand, and China Region [Member]
Segment Reporting Information [Line Items]
Net Revenue	$ 555	$ 525
Operating Profit	$ 142	$ 106
Disaggregation of Net Revenue - Beverages	20.00%	20.00%
Disaggregation of Net Revenue - Food/Snack	80.00%	80.00%
Inventory Write-down Novel Coronavirus (COVID-19) Impact	$ 1
Charges Related to Novel Coronavirus (COVID-19) Impact - Other	1
Operating Segments [Member]
Segment Reporting Information [Line Items]
Operating Profit	2,302	$ 2,242
Corporate Unallocated [Member]
Segment Reporting Information [Line Items]
Operating Profit	$ (378)	$ (234)
United States and Canada [Member]
Segment Reporting Information [Line Items]
Fiscal Period Duration	84 days

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