Segment Reporting Information by COVID-19 Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 19, 2022	Mar. 20, 2021
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	$ 36	$ 61
Frito Lay North America [Member]
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	14	24
Quaker Foods North America [Member]
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	1	2
PepsiCo Beverages North America [Member]
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	10	13
Latin America (Segment)
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	6	15
Europe (Segment)
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	1	6
Africa, Middle East and South Asia [Member]
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	2	(1)
Asia Pacific, Australia and New Zealand, and China Region [Member]
Unusual or Infrequent Item, or Both [Line Items]
Charges Related to Novel Coronavirus (COVID-19)	$ 2	$ 2