Share-Based Payments - Components of Share-Based Compensation Expense (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 02, 2017	Jul. 03, 2016	Jul. 02, 2017	Jul. 03, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct	[1],[2]	$ 11	$ 10	$ 22	$ 19
Additional share-based compensation expense					1
Stock options / stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		2	3	5	5
RSUs / DSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		7	6	13	12
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		$ 2	$ 1	$ 4	$ 2

[1] For the three and six months ended July 2, 2017, and July 3, 2016, amounts capitalized to inventory were insignificant.

[2] For the three and six months ended July 2, 2017, and three months ended July 3, 2016, the additional share-based compensation expense as a result of accelerated vesting of the outstanding stock options and the settlement, on a pro-rata basis, of other equity awards of terminated employees in connection with our operational efficiency initiative and supply network strategy, which is included in Restructuring charges/(reversals) and certain acquisition-related costs, were insignificant. For the six months ended July 3, 2016, additional share-based compensation expense was approximately $1 million.