CONSOLIDATED STATEMENT 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, 2014	$ 22,318	$ 52	$ 9,005	$ 12,125	$ (940)	$ (517)	$ 2,593
Net income (loss)	(3,236)			(3,268)			32
Common stock issued	50		50
Dividends—common stock	(139)			(139)
Repurchase of common stock	(36)				(36)
Subsidiary equity transactions	34		(10)				44
Distributions to noncontrolling interest owners	(67)						(67)
Reclassification of previously deferred derivative losses to (gains) losses on derivatives, net	1					1
Adjustments for pension and other postretirement plans	9					9
Balance at Mar. 31, 2015	$ 18,934	$ 52	$ 9,045	$ 8,718	$ (976)	$ (507)	$ 2,602