Stockholders' Equity - Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2016	Mar. 29, 2015
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, December 31, 2015	$ (622)
Other comprehensive income (loss), net of tax	3	$ (117)
Balance, April 3, 2016	(618)
Derivative
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, December 31, 2015	(2)
Other comprehensive income (loss), net of tax	0
Balance, April 3, 2016	(2)
Currency Translation Adjustment Net Unrealized Gain/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, December 31, 2015	(604)
Other comprehensive income (loss), net of tax	3
Balance, April 3, 2016	(601)
Benefit Plans Actuarial Gains/(Losses)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, December 31, 2015	(16)
Other comprehensive income (loss), net of tax	1
Balance, April 3, 2016	(15)
Accumulated Other Comp. Income/(Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance, December 31, 2015	(622)
Other comprehensive income (loss), net of tax	4	$ (118)
Balance, April 3, 2016	$ (618)