Exit or Disposal Activities (Restructuring and Cost Reduction Charges Incurred) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		25 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014	Jun. 29, 2013	Jun. 28, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 78	$ 7	$ 132	$ 20
Restructuring and related costs incurred to date					374
U.S. Morning Foods [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	15	2	26	5
Restructuring and related costs incurred to date					136
U.S. Snacks [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	3	3	10	6
Restructuring and related costs incurred to date					37
U.S. Specialty [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	0	1	1	2
Restructuring and related costs incurred to date					6
North America Other [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	6	1	9	1
Restructuring and related costs incurred to date					21
Europe [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	28	0	40	0
Restructuring and related costs incurred to date					67
Latin America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	1	0	5	0
Restructuring and related costs incurred to date					12
Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	5	0	11	6
Restructuring and related costs incurred to date					35
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	20	0	30	0
Restructuring and related costs incurred to date					60
Employee related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	35	1	52	5
Restructuring and related costs incurred to date					161
Asset related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	7	0	10	5
Restructuring and related costs incurred to date					19
Asset Impairment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and related costs incurred to date					66
Other costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	36	6	70	10
Restructuring and related costs incurred to date					128
Selling General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	47	4	76	9
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 31	$ 3	$ 56	$ 11