Share-Based Payments - Components of Share-Based Compensation Expense (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—total	[1],[2]	$ 10	$ 11	$ 19	$ 21
Capitalized share-based compensation expense to inventory			1
Amount of accelerated vesting				1
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		3	5	5	11
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		6	5	12	9
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation expense—direct		$ 1	$ 1	$ 2	$ 1

[1] For the three and six months ended July 3, 2016, amounts capitalized to inventory were insignificant. For the three and six months ended June 28, 2015, we capitalized $1 million of share-based compensation expense to inventory.

[2] Includes 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 for the six months ended July 3, 2016, of approximately $1 million, which is included in Restructuring (benefits)/charges and certain acquisition-related costs. For the three months ended July 3, 2016, and the three and six months ended June 28, 2015, the amounts were insignificant.