Merger and Acquisition Recognized Identified Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions		9 Months Ended
	Jul. 02, 2015	Sep. 27, 2015	Sep. 28, 2014	Dec. 28, 2014
Business Combinations [Abstract]
Cash	$ 314
Other current assets	3,893
Property, plant and equipment	4,215
Identifiable intangible assets	44,107
Other non-current assets	661
Trade and other payables	(3,370)
Long-term debt	(9,286)
Net postemployment benefits and other noncurrent liabilities	(4,731)
Deferred income tax liabilities	(15,812)
Net assets acquired	19,991
Goodwill on acquisition	32,646	$ 46,750		$ 14,959
Total consideration exchanged	52,637
Preliminary fair value of shares exchanged and equity awards	42,855
Total cash consideration paid to Kraft shareholders	9,782
Acquisition of business, net of cash on hand	$ 9,468	$ 9,468	$ 0