Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Oct. 31, 2015	Sep. 30, 2015	Jan. 31, 2015	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013
Business Acquisition [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired				$ 161	$ 0	$ 0
Bisco Misr [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross			$ 125
Payments to Acquire Businesses, Net of Cash Acquired			$ 117
Payments to Noncontrolling Interests	$ 13
Noncontrolling Interest, Ownership Percentage by Parent				95.00%
MassFoods [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross		$ 46
Payments to Acquire Businesses, Net of Cash Acquired		$ 44