Reportable Segments (Details) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 04, 2015 USD ($)	Jun. 28, 2014 USD ($)	Jul. 04, 2015 USD ($) segment	Jun. 28, 2014 USD ($)
Segment Reporting Information [Line Items]
Number of operating segments | segment				9
Number of remaining reportable segments based on geographical locations | segment				3
Net sales		$ 3,498	$ 3,685	$ 7,054	$ 7,427
Operating profit (loss)		412	467	796	1,081
Non-cash gain from deconsolidation				49	0
Venezuela remeasurement expense				152	0
Mark-to-market adjustments for pension plans, commodity and foreign currency contracts		35	(12)	(32)	104
Operating Profit [Member]
Segment Reporting Information [Line Items]
Non-cash gain from deconsolidation		67		67
Venezuela remeasurement expense		103		103
Operating Segments
Segment Reporting Information [Line Items]
Operating profit (loss)		398	500	866	1,011
Operating Segments | U.S. Morning Foods
Segment Reporting Information [Line Items]
Net sales		742	759	1,518	1,558
Operating profit (loss)		131	137	258	263
Operating Segments | U.S. Snacks
Segment Reporting Information [Line Items]
Net sales		835	851	1,689	1,715
Operating profit (loss)	[1]	160	124	240	210
Operating Segments | U.S. Specialty
Segment Reporting Information [Line Items]
Net sales		270	276	631	648
Operating profit (loss)		59	63	137	150
Operating Segments | North America Other
Segment Reporting Information [Line Items]
Net sales		439	464	872	946
Operating profit (loss)		37	74	96	157
Operating Segments | Europe
Segment Reporting Information [Line Items]
Net sales		650	767	1,257	1,472
Operating profit (loss)		57	50	118	115
Operating Segments | Latin America
Segment Reporting Information [Line Items]
Net sales		328	320	623	598
Operating profit (loss)	[2]	(56)	47	(5)	95
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Net sales		234	248	464	490
Operating profit (loss)		10	5	22	21
Corporate
Segment Reporting Information [Line Items]
Operating profit (loss)	[3]	$ 14	$ (33)	$ (70)	$ 70

[1] Includes a non-cash gain of $67 million associated with the deconsolidation of a VIE during the quarter and year-to-date periods ended July 4, 2015.

[2] Includes a non-cash loss of $103 million associated with the remeasurement of the financial statements of the Company's Venezuela subsidiary during the quarter and year-to-date periods ended July 4, 2015.

[3] Includes mark-to-market adjustments for pension plans, commodity and foreign currency contracts totaling $35 million and ($12) million for the quarters ended July 4, 2015 and June 28, 2014, respectively. Includes mark-to-market adjustments for pension plans, commodity and foreign currency contracts totaling ($32) million and $104 million for the year-to-date periods ended July 4, 2015 and June 28, 2014, respectively.