CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Millions		Total		Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interests [Member]
Balance at Dec. 31, 2010		$ 21,439		$ 51	$ 7,496	$ 14,449	$ (763)	$ (549)	$ 755
Net income (loss)		(2,568)				(2,649)			81
Common stock issued		161			161
Dividends—common stock		(181)				(181)
Repurchase of common stock		(41)					(41)
Subsidiary equity transactions		301			32				269
Conversion of subordinated limited partner units to common units (1)	[1]				162				(162)
Distributions to noncontrolling interest owners		(82)							(82)
Contributions from noncontrolling interest owners		17							17
Reclassification of previously deferred derivative losses to (gains) losses on derivatives, net		10	[2]					10
Adjustments for pension and other postretirement plans		(73)						(73)
Balance at Dec. 31, 2011		18,983		51	7,851	11,619	(804)	(612)	878
Net income (loss)		2,445				2,391			54
Common stock issued		249			249
Dividends—common stock		(181)				(181)
Repurchase of common stock		(37)					(37)
Subsidiary equity transactions		547			130				417
Distributions to noncontrolling interest owners		(112)							(112)
Contributions from noncontrolling interest owners		16							16
Reclassification of previously deferred derivative losses to (gains) losses on derivatives, net		8	[2]					8
Adjustments for pension and other postretirement plans		(36)						(36)
Balance at Dec. 31, 2012		21,882		51	8,230	13,829	(841)	(640)	1,253
Net income (loss)		941				801			140
Common stock issued		293		1	292
Dividends—common stock		(274)				(274)
Repurchase of common stock		(54)					(54)
Subsidiary equity transactions		661			107				554
Distributions to noncontrolling interest owners		(156)							(156)
Contributions from noncontrolling interest owners		2							2
Reclassification of previously deferred derivative losses to (gains) losses on derivatives, net		7	[2]					7
Adjustments for pension and other postretirement plans		348						348
Balance at Dec. 31, 2013		$ 23,650		$ 52	$ 8,629	$ 14,356	$ (895)	$ (285)	$ 1,793

[1] Includes $92 million of tax associated with subsidiary equity transactions that occurred prior to the conversion of subordinated limited partner units to common units.

[2] Net of income tax benefit (expense) of $(4) million in 2013, $(4) million in 2012, and $(5) million in 2011.