Restructuring and Cost Reduction Activities - Schedule of Restructuring and Cost Reduction Activities (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 02, 2016	Apr. 04, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 52	$ 68
Program costs to date	881
Employee related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	14	17
Program costs to date	273
Asset impairment
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0
Program costs to date	105
Asset related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	10	23
Program costs to date	156
Other costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges	28	28
Program costs to date	347
Operating Segments | U.S. Morning Foods
Restructuring Cost and Reserve [Line Items]
Restructuring charges	5	8
Program costs to date	223
Operating Segments | U.S. Snacks
Restructuring Cost and Reserve [Line Items]
Restructuring charges	20	9
Program costs to date	146
Operating Segments | U.S. Specialty
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2	1
Program costs to date	13
Operating Segments | North America Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	9	6
Program costs to date	99
Operating Segments | Europe
Restructuring Cost and Reserve [Line Items]
Restructuring charges	14	19
Program costs to date	187
Operating Segments | Latin America
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	0
Program costs to date	16
Operating Segments | Asia Pacific
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0	5
Program costs to date	74
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring charges	2	$ 20
Program costs to date	$ 123