Property, Plant and Equipment and Intangible Assets (Schedule of Change in Book Value of Nonamortizable Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	$ 30,111	$ 28,989	$ 27,314
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	785	2,693
Finite-Lived Intangible Assets, Net	1,433	1,644
Finite-Lived Intangible Assets, Gross	3,088	3,209
Finite-Lived Intangible Assets, Accumulated Amortization	(1,655)	(1,565)
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	337	(1,018)
Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	15,501	14,808	14,744
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	520	563
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	173	(499)
Reacquired Franchise Rights
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	7,594	7,555	7,675
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	(1)
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	39	(119)
Acquired Franchise Rights
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	1,674	1,671	1,720
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	(25)
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	3	(24)
Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	5,342	4,955	3,175
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	265	2,156
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	122	(376)
Frito Lay North America [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	461	458	305
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(3)	166
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	6	(13)
Frito Lay North America [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	299	297	280
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(3)	28
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	5	(11)
Frito Lay North America [Member] | Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	162	161	25
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	138
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	1	(2)
Quaker Foods North America [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	200	209	175
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(8)	34
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(1)	0
Quaker Foods North America [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	189	184	175
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	6	9
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(1)
Quaker Foods North America [Member] | Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	11	25
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(14)	25
PepsiCo Beverages North America [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	19,267	18,734	18,858
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	484	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	49	(124)
PepsiCo Beverages North America [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	9,898	9,813	9,854
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	66	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	19	(41)
PepsiCo Beverages North America [Member] | Reacquired Franchise Rights
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	7,089	7,058	7,126
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	31	(68)
PepsiCo Beverages North America [Member] | Acquired Franchise Rights
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	1,517	1,510	1,525
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	7	(15)
PepsiCo Beverages North America [Member] | Acquired Franchise Rights
Property, Plant and Equipment [Line Items]
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period		0
PepsiCo Beverages North America [Member] | Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	763	353	353
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	418	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(8)
Latin America [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	626	636	696
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(10)	(60)
Latin America [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	501	509	555
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(8)	(46)
Latin America [Member] | Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	125	127	141
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(2)	(14)
Europe [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	8,804	8,207	6,491
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	301	2,493
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	296	(777)
Europe [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	3,961	3,361	3,202
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	440	526
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	160	(367)
Europe [Member] | Reacquired Franchise Rights
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	505	497	549
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	(1)
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	8	(51)
Europe [Member] | Acquired Franchise Rights
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	157	161	195
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(4)	(9)
Europe [Member] | Acquired Franchise Rights
Property, Plant and Equipment [Line Items]
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period		(25)
Europe [Member] | Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	4,181	4,188	2,545
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	(139)	1,993
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	132	(350)
Africa, Middle East and South Asia [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	446	437	437
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	11	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(2)	0
Africa, Middle East and South Asia [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	446	437	437
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	11	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(2)
Asia Pacific, Australia and New Zealand, and China Region [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	307	308	352
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	(1)	(44)
Asia Pacific, Australia and New Zealand, and China Region [Member] | Goodwill [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	207	207	241
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)		(34)
Asia Pacific, Australia and New Zealand, and China Region [Member] | Brands [Member]
Property, Plant and Equipment [Line Items]
Indefinite-Lived Intangible Assets	100	101	$ 111
Goodwill and Indefinite-lived Intangible Assets, Acquired (Divested) During Period	0	0
Intangible Assets (Including Goodwill) [Roll Forward]
Acquisitions/ (Divestitures)	$ (1)	(10)
Minimum | Brands [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum | Brands [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Asset, Useful Life	40 years
Other Identifiable Intangibles
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets, Net	$ 484	671
Finite-Lived Intangible Assets, Gross	810	959
Finite-Lived Intangible Assets, Accumulated Amortization	(326)	(288)
Brands [Member]
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets, Net	260	274
Finite-Lived Intangible Assets, Gross	1,326	1,306
Finite-Lived Intangible Assets, Accumulated Amortization	(1,066)	(1,032)
Acquired Franchise Rights
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets, Net	688	698
Finite-Lived Intangible Assets, Gross	846	838
Finite-Lived Intangible Assets, Accumulated Amortization	(158)	(140)
Reacquired Franchise Rights
Property, Plant and Equipment [Line Items]
Finite-Lived Intangible Assets, Net	1	1
Finite-Lived Intangible Assets, Gross	106	106
Finite-Lived Intangible Assets, Accumulated Amortization	$ (105)	$ (105)