Change in Book Value of Nonamortizable Intangible Assets (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 19, 2022	Mar. 20, 2021	Dec. 25, 2021
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 34,715		$ 35,508
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(793)
Brand portfolio impairment charges	241	$ 0
Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	800		798
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	2
QFNA
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	189		189
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	23,148		23,127
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	21
Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,290		1,268
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	22
Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,041		1,040
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	1
Latin America (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	553		533
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	20
Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,694		8,553
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(859)
Goodwill
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	18,112		18,381
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(269)
Goodwill | Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	460		458
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	2
Goodwill | QFNA
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	189		189
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
Goodwill | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	11,980		11,974
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	6
Goodwill | Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,079		1,063
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	16
Goodwill | Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	564		564
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
Goodwill | Latin America (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	448		433
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	15
Goodwill | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	3,392		3,700
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(308)
Brands
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,382		7,883
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(501)
Brands | Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	340		340
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
Brands | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	2,508		2,508
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
Brands | Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	211		205
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	6
Brands | Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	477		476
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	1
Brands | Latin America (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	105		100
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	5
Brands | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	3,741		4,254
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(513)
Reacquired Franchise Rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,525		7,548
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(23)
Reacquired Franchise Rights | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,120		7,107
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	13
Reacquired Franchise Rights | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	405		441
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	(36)
Acquired franchise rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,696		1,696
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	0
Acquired franchise rights | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,540		1,538
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	2
Acquired franchise rights | Europe (Segment)
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	156		$ 158
Indefinite-lived Intangible Assets [Roll Forward]
Translation and Other	$ (2)