Income Taxes Change in Valuation Allowance Against Deferred Tax Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016		Jan. 02, 2016	Jan. 03, 2015
Operating Loss Carryforwards [Line Items]
Valuation Allowances and Reserves, Period Increase (Decrease)	$ 26
Balance at beginning of year	63		$ 51	$ 61
Additions charged to income tax expense	70	[1]	23	9
Reductions credited to income tax expense	(4)		(7)	(3)
Currency translation adjustments	2		(4)	(16)
Balance at end of year	131		$ 63	$ 51
2014 Loss Carryforward [Member]
Operating Loss Carryforwards [Line Items]
Valuation Allowances and Reserves, Period Increase (Decrease)	$ 34

[1] (a) During 2016, the Company increased its deferred tax assets by $34 million relating to a revision of 2014 foreign loss carryforwards. The entire adjustment of $34 million was offset by a corresponding adjustment in the valuation allowance because it is not expected to be used in the future. These adjustments are not considered material to the previously issued or current year financial statements. Also during 2016, the Company increased its deferred tax assets by $26 million related to a foreign loss carryforward. The entire amount was offset by a corresponding valuation allowance because it is not expected to be used in the future.