Income Taxes Deferred tax assets and deferred tax liabilities (Details) - USD ($) $ in Millions	Jan. 02, 2016	Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Deferred Income Tax [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 13	$ 10
Deferred Tax Liabilities Us State Income Taxes	43	49
Deferred Tax Assets Advertising And Promotion Related	15	21
Deferred Tax Assets Wages And Payroll Taxes	21	36
Deferred Tax Assets, Inventory	31	0
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Benefits	366	305
Tax benefits of carryforwards	55	54
Deferred Tax Assets, Hedging Transactions	43	48
Deferred Tax Liabilities, Property, Plant and Equipment	345	352
Deferred Tax Liabilities, Intangible Assets	576	555
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Employee Compensation	35	35
Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost	42	38
Deferred taxes related to foreign earnings not considered indefinitely reinvested	0	1	$ 2
Deferred Tax Assets, Other	86	84
Deferred Tax Assets, Gross	707	631
Deferred Tax Liabilities, Gross	964	957
Deferred Tax Liabilities, Net	964	957
Deferred Tax Assets, Valuation Allowance	(63)	(51)	$ (61)	$ (59)
Deferred Tax Assets, Net of Valuation Allowance	644	580
Deferred Tax Assets, Net	(320)	(377)
Other Current Assets [Member]
Deferred Income Tax [Line Items]
Deferred Tax Assets, Net	227	184
Other Current Liabilities [Member]
Deferred Income Tax [Line Items]
Deferred Tax Assets, Net	(9)	(10)
Other Assets [Member]
Deferred Income Tax [Line Items]
Deferred Tax Assets, Net	147	175
Other Liabilities [Member]
Deferred Income Tax [Line Items]
Deferred Tax Assets, Net	$ (685)	$ (726)