Restructuring and Cost Reduction Activities - Schedule of Restructuring and Cost Reduction Activities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 85	$ 92	$ 243	$ 224
Program costs to date	749		749
Employee related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	31	22	64	74
Program costs to date	261		261
Asset impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	21	18	21
Program costs to date	105		105
Asset related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15	6	62	16
Program costs to date	105		105
Other costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	39	43	99	113
Program costs to date	278		278
Operating Segments | U.S. Morning Foods
Restructuring Cost and Reserve [Line Items]
Restructuring charges	30	15	51	41
Program costs to date	211		211
Operating Segments | U.S. Snacks
Restructuring Cost and Reserve [Line Items]
Restructuring charges	15	32	34	42
Program costs to date	110		110
Operating Segments | U.S. Specialty
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1	1	3	2
Program costs to date	9		9
Operating Segments | North America Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	11	2	40	11
Program costs to date	67		67
Operating Segments | Europe
Restructuring Cost and Reserve [Line Items]
Restructuring charges	12	23	56	63
Program costs to date	155		155
Operating Segments | Latin America
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1	1	2	6
Program costs to date	14		14
Operating Segments | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2	11	10	22
Program costs to date	71		71
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges	13	$ 7	47	$ 37
Program costs to date	$ 112		$ 112