Intangible Assets (Schedule of Change in Book Value of Nonamortizable Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	$ 36,369	$ 30,111	$ 28,989
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	6,395	785
Acquisitions	(137)	337
Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	805	461	458
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	343	(3)
Acquisitions	1	6
PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	23,954	19,267	18,734
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	4,696	484
Acquisitions	(9)	49
Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	999	307	308
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	615	0
Acquisitions	77	(1)
Quaker Foods North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	189	200	209
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	(8)
Acquisitions	(11)	(1)
Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,310	446	437
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	743	11
Acquisitions	121	(2)
Europe
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	8,546	8,804	8,207
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(2)	301
Acquisitions	(256)	296
Latin America
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	566	626	636
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	(60)	(10)
Goodwill [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	18,757	15,501	14,808
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	3,308	520
Acquisitions	(52)	173
Goodwill [Member] | Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	465	299	297
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	164	(3)
Acquisitions	2	5
Goodwill [Member] | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	12,189	9,898	9,813
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	2,280	66
Acquisitions	11	19
Goodwill [Member] | Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	554	207	207
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	306	0
Acquisitions	41	0
Goodwill [Member] | Quaker Foods North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	189	189	184
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	6
Acquisitions	0	(1)
Goodwill [Member] | Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,096	446	437
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	560	11
Acquisitions	90	(2)
Goodwill [Member] | Europe
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	3,806	3,961	3,361
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(2)	440
Acquisitions	(153)	160
Goodwill [Member] | Latin America
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	458	501	509
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	(43)	(8)
Reacquired Franchise Rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,603	7,594	7,555
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	9	39
Reacquired Franchise Rights | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	7,107	7,089	7,058
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	18	31
Reacquired Franchise Rights | Europe
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	496	505	497
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	(9)	8
Brands [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	8,301	5,342	4,955
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	3,071	265
Acquisitions	(112)	122
Brands [Member] | Frito Lay North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	340	162	161
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	179	0
Acquisitions	(1)	1
Brands [Member] | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	3,122	763	353
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	2,400	418
Acquisitions	(41)	(8)
Brands [Member] | Asia Pacific, Australia and New Zealand, and China Region [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	445	100	101
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	309	0
Acquisitions	36	(1)
Brands [Member] | Quaker Foods North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	0	11	25
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	(14)
Acquisitions	(11)	0
Brands [Member] | Africa, Middle East and South Asia [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	214	0	0
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	183	0
Acquisitions	31	0
Brands [Member] | Europe
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	4,072	4,181	4,188
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	(139)
Acquisitions	(109)	132
Brands [Member] | Latin America
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	108	125	127
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	(17)	(2)
Acquired Franchise Rights
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,708	1,674	1,671
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	16	0
Acquisitions	18	3
Acquired Franchise Rights | PepsiCo Beverages North America [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	1,536	1,517	1,510
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	16	0
Acquisitions	3	7
Acquired Franchise Rights | Europe
Indefinite-lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets	172	157	$ 161
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Acquisitions	$ 15	$ (4)