Consolidated Statements of Changes in Stockholder's Equity (USD $) In Millions	Total	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
BALANCE, beginning at Dec. 31, 2012	$ 12,725	$ 136	$ 5,994	$ 6,845	$ (514)	$ 264
Net income (loss)	283			290		(7)
Other comprehensive income (loss), net of tax	(365)				(365)
Compensation-restricted stock units	(15)		(15)
Other	13					13
Net change	(84)		(15)	290	(365)	6
BALANCE, ending at Jun. 30, 2013	12,641	136	5,979	7,135	(879)	270
BALANCE, beginning at Dec. 31, 2013	14,468	136	7,191	7,512	(624)	253
Net income (loss)	415			424		(9)
Other comprehensive income (loss), net of tax	183				183
Compensation-restricted stock units	(7)		(7)
Net change	591		(7)	424	183	(9)
BALANCE, ending at Jun. 30, 2014	$ 15,059	$ 136	$ 7,184	$ 7,936	$ (441)	$ 244