Goodwill and Other Intangible Assets (Intangible Assets Subject to Amortization) (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 28, 2014		Jun. 29, 2013
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	$ 164
Currency translation adjustment	0
Gross carrying amount, ending balance	164
Accumulated amortization, beginning balance	62	[1]
Amortization expense	4		3
Accumulated amortization, ending balance	66
Intangible assets subject to amortization net, beginning balance	102
Currency translation adjustment	0
Amortization expense	(4)		(3)
Intangible assets subject to amortization net, ending balance	98
U.S. Morning Foods [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	28
Currency translation adjustment	0
Gross carrying amount, ending balance	28
Accumulated amortization, beginning balance	28
Amortization expense	0
Accumulated amortization, ending balance	28
Intangible assets subject to amortization net, beginning balance	0
Currency translation adjustment	0
Amortization expense	0
Intangible assets subject to amortization net, ending balance	0
U.S. Snacks [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	70
Currency translation adjustment	0
Gross carrying amount, ending balance	70
Accumulated amortization, beginning balance	16
Amortization expense	2
Accumulated amortization, ending balance	18
Intangible assets subject to amortization net, beginning balance	54
Currency translation adjustment	0
Amortization expense	(2)
Intangible assets subject to amortization net, ending balance	52
U.S. Specialty [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	0
Currency translation adjustment	0
Gross carrying amount, ending balance	0
Accumulated amortization, beginning balance	0
Amortization expense	0
Accumulated amortization, ending balance	0
Intangible assets subject to amortization net, beginning balance	0
Currency translation adjustment	0
Amortization expense	0
Intangible assets subject to amortization net, ending balance	0
North America Other [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	5
Currency translation adjustment	0
Gross carrying amount, ending balance	5
Accumulated amortization, beginning balance	4
Amortization expense	0
Accumulated amortization, ending balance	4
Intangible assets subject to amortization net, beginning balance	1
Currency translation adjustment	0
Amortization expense	0
Intangible assets subject to amortization net, ending balance	1
Europe [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	44
Currency translation adjustment	0
Gross carrying amount, ending balance	44
Accumulated amortization, beginning balance	6
Amortization expense	2
Accumulated amortization, ending balance	8
Intangible assets subject to amortization net, beginning balance	38
Currency translation adjustment	0
Amortization expense	(2)
Intangible assets subject to amortization net, ending balance	36
Latin America [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	7
Currency translation adjustment	0
Gross carrying amount, ending balance	7
Accumulated amortization, beginning balance	7
Amortization expense	0
Accumulated amortization, ending balance	7
Intangible assets subject to amortization net, beginning balance	0
Currency translation adjustment	0
Amortization expense	0
Intangible assets subject to amortization net, ending balance	0
Asia Pacific [Member]
Finite Lived Intangible Assets [Roll Forward]
Gross carrying amount, beginning balance	10
Currency translation adjustment	0
Gross carrying amount, ending balance	10
Accumulated amortization, beginning balance	1
Amortization expense	0
Accumulated amortization, ending balance	1
Intangible assets subject to amortization net, beginning balance	9
Currency translation adjustment	0
Amortization expense	0
Intangible assets subject to amortization net, ending balance	$ 9

[1] Condensed from audited financial statements.