Stockholders' Equity - Changes in Each Component of Accumulated Other Comprehensive Income of the Parent (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		$ (997)
Other comprehensive income (loss):
Other comprehensive income (loss) attributable to the parent company		(177)	$ (270)	$ 69
Ending Balance		(1,174)	(997)
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		(427)	(242)	(198)
Other comprehensive income (loss):
Currency translation adjustments		(179)	$ (185)	$ (40)
Holding loss on net investment hedge		$ (2)
Tax (expense) benefit
Other comprehensive income (loss) attributable to the parent company		$ (181)	$ (185)	$ (40)
Adjustments to accumulated other comprehensive income				(4)
Ending Balance		(608)	(427)	(242)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		(9)	0	3
Other comprehensive income (loss):
Holding gains (losses)		(14)	(12)	4
Reclassification of amount to net income	[1]	20	2	$ (8)
Tax (expense) benefit		(1)	1
Other comprehensive income (loss) attributable to the parent company		5	(9)	$ (4)
Adjustments to accumulated other comprehensive income				1
Ending Balance		(4)	(9)	0
Accumulated Net Investment Gain (Loss) Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		5	3	12
Other comprehensive income (loss):
Holding gains (losses)		$ (3)	3	(1)
Reclassification of amount to net income	[1]		$ (1)	$ (8)
Tax (expense) benefit
Other comprehensive income (loss) attributable to the parent company		$ (3)	$ 2	$ (9)
Ending Balance		2	5	3
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		(566)	(488)	(610)
Other comprehensive income (loss):
Venezuelan bolivar devaluation			4	2
Net actuarial gains (losses)		(28)	(156)	101
Reclassification adjustment for net actuarial losses included in net periodic benefit cost	[2]	25	60	24
Elimination of net prior service cost and actuarial losses of disposal group		10
Other			3
Tax (expense) benefit		(5)	11	(5)
Other comprehensive income (loss) attributable to the parent company		2	(78)	122
Ending Balance		(564)	(566)	(488)
AOCI Attributable to Parent [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		(997)	(727)	(793)
Other comprehensive income (loss):
Currency translation adjustments		(179)	(185)	(40)
Holding loss on net investment hedge		(2)
Holding gains (losses)		(17)	(9)	3
Reclassification of amount to net income	[1]	20	1	(16)
Venezuelan bolivar devaluation			4	2
Net actuarial gains (losses)		(28)	(156)	101
Reclassification adjustment for net actuarial losses included in net periodic benefit cost	[2]	25	60	24
Elimination of net prior service cost and actuarial losses of disposal group		10
Other			3
Tax (expense) benefit		(6)	12	(5)
Other comprehensive income (loss) attributable to the parent company		(177)	(270)	69
Adjustments to accumulated other comprehensive income				(3)
Ending Balance		$ (1,174)	$ (997)	$ (727)

[1] Foreign currency contract and investment reclassifications are included in other income, net.

[2] See Note 10 for additional details.