Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (93)	$ 634
Other Comprehensive Income(Loss), Net of Tax [Abstract]
Foreign currency translation adjustments	24	4
Pension and OPEB adjustments	(1)	3
Net unrealized gain (loss) on cash flow hedges	0	10	[1]
Other comprehensive income, net of tax	23	17
Comprehensive income	(70)	651
Less: Comprehensive Income Attributable to Noncontrolling Interests	5
Comprehensive Income (Loss), Net of Tax, Attributable to Parent, Total	$ (75)	$ 651

[1] Net of $4 million tax expense in 2013.