Other Income (Loss), Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	$ 27	$ (27)
Realized and unrealized gain (loss) on derivatives, net
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	(1)	(51)
Gain on disposition of assets
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	10	11
Loss on extinguishment of debt
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	0	(2)
Equity earnings from non-consolidated affiliates
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	15	14
Foreign currency translation loss
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	(3)	(2)
Other
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	$ 6	$ 3