Consolidated Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 67	$ 24
Derivatives qualifying as cash flow hedges:
Loss on derivatives qualifying as cash flow hedges, net of tax (benefit) of ($3) and $1, respectively	(8)	(1)
Less: Reclassification adjustment for loss on derivatives included in net income, net of tax (benefit) of ($1) and $0, respectively	(2)	(2)
Net derivatives qualifying as cash flow hedges	(6)	1
Pension and postretirement benefits:
Changes in pension and postretirement benefits, net of tax (benefit) of ($1) and $1, respectively	(3)	6
Less: Amortization of prior service credit (cost) included in net periodic pension cost, net of tax (benefit) of $0 and ($1), respectively	0	(1)
Net pension and postretirement benefits	(3)	7
Foreign currency translation:
Changes in foreign currency translation, net of tax of $0 in all periods	24	(34)
Other comprehensive income (loss), net of tax	15	(26)
Comprehensive income (loss)	$ 82	$ (2)