Other Income (Loss), Net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	$ 13	$ 19	$ 40	$ (8)
Realized and unrealized gain (loss) on derivatives, net
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	(2)	(13)	(3)	(64)
Gain on disposition of assets
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	1	9	11	20
Loss on extinguishment of debt
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	(5)	0	(5)	(2)
Equity earnings from non-consolidated affiliates
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	21	18	36	32
Gain on acquisition [Member]
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	0	3	0	3
Foreign currency translation loss
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	1	0	(2)	(2)
Other
Component of Other Income (Loss), Net [Line Items]
Other income (loss), net	$ (3)	$ 2	$ 3	$ 5