Goodwill and Other Intangible Assets - Intangible Assets Not Subject to Amortization (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Apr. 02, 2016	Oct. 01, 2016
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	$ 2,199	$ 2,199
Additions		21
Contribution to joint venture		(5)
Currency translation adjustment		8
Intangible assets not subject to amortization, ending balance		2,223
U.S. Morning Foods
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	0	0
Additions		0
Contribution to joint venture		0
Currency translation adjustment		0
Intangible assets not subject to amortization, ending balance		0
U.S. Snacks
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	1,625	1,625
Additions		0
Contribution to joint venture		0
Currency translation adjustment		0
Intangible assets not subject to amortization, ending balance		1,625
U.S. Specialty
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	0	0
Additions		0
Contribution to joint venture		0
Currency translation adjustment		0
Intangible assets not subject to amortization, ending balance		0
North America Other
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	158	158
Additions		18
Contribution to joint venture		0
Currency translation adjustment		1
Intangible assets not subject to amortization, ending balance		177
Europe
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	416	416
Additions		3
Contribution to joint venture		(5)
Currency translation adjustment		7
Intangible assets not subject to amortization, ending balance		421
Latin America
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	0	0
Additions		0
Contribution to joint venture		0
Currency translation adjustment		0
Intangible assets not subject to amortization, ending balance		0
Asia Pacific
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets not subject to amortization, beginning balance	0	0
Additions		0
Contribution to joint venture		0
Currency translation adjustment		0
Intangible assets not subject to amortization, ending balance		$ 0
Tolaram
Indefinite-lived Intangible Assets [Roll Forward]
Contribution to joint venture	$ (5)