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)	$ (2,626)		$ 484
Other Comprehensive Income (Loss), net of taxes
Reclassification of previously deferred derivative losses to (gains) losses on derivatives, net (1)	1	[1]	2	[1]
Amortization of net actuarial (gain) loss to general and administrative expense (2)	5	[2]	19	[2]
Total	6		21
Comprehensive Income (Loss)	(2,620)		505
Comprehensive income attributable to noncontrolling interests	43		24
Comprehensive Income (Loss) Attributable to Common Stockholders	$ (2,663)		$ 481

[1] Net of income tax benefit (expense) of $(1) million for the three months ended March 31, 2014 and 2013.

[2] Net of income tax benefit (expense) of $(2) million for the three months ended March 31, 2014, and $(10) million for the three months ended March 31, 2013.