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Statement Of Changes In Consolidated Equity (USD $) In Millions	Preferred Stock [Member]	Common Stock [Member]	Additional Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Loss [Member]	Non-Controlling Interests [Member]	Total
Beginning balance at Jun. 30, 2010	$ 55	$ 1,141	$ 7,091	$ 10,892	$ (4,177)	$ (2,393)	$ 3,116	$ 15,725
Net (loss) income				61			48	109
Other comprehensive (loss) income						705	241	946
Cash dividends declared:
Preferred				(1)				(1)
Common				(30)				(30)
Stock-based compensation			20					20
Common stock issued: compensation plans			(17)		6			(11)
Distributions							(41)	(41)
Contributions							61	61
Ending balance at Sep. 30, 2010	55	1,141	7,094	10,922	(4,171)	(1,688)	3,425	16,778
Beginning balance at Dec. 31, 2009	55	1,097	6,608	11,020	(4,268)	(2,092)	3,100	15,520
Net (loss) income				(4)			104	100
Other comprehensive (loss) income						404	254	658
Cash dividends declared:
Preferred				(2)				(2)
Common				(92)				(92)
Stock-based compensation			70					70
Common stock issued: compensation plans			(118)		97			(21)
Issuance of common stock		44	556					600
Distributions							(154)	(154)
Contributions							125	125
Purchase of equity from noncontrolling interest			(2)				(4)	(6)
Other			(20)					(20)
Ending balance at Sep. 30, 2010	55	1,141	7,094	10,922	(4,171)	(1,688)	3,425	16,778
Beginning balance at Dec. 31, 2010	55	1,141	7,087	11,149	(4,146)	(1,675)	3,475	17,086
Net (loss) income				802			166	968
Other comprehensive (loss) income						(50)	(159)	(209)
Cash dividends declared:
Preferred				(2)				(2)
Common				(129)				(129)
Stock-based compensation			70					70
Common stock issued: compensation plans			(175)		192			17
Issuance of common stock		37	563					600
Distributions							(253)	(253)
Contributions							136	136
Other							(1)	(1)
Ending balance at Sep. 30, 2011	55	1,178	7,545	11,820	(3,954)	(1,725)	3,364	18,283
Beginning balance at Jun. 30, 2011	55	1,178	7,522	11,714	(3,959)	(858)	3,717	19,369
Net (loss) income				172			53	225
Other comprehensive (loss) income						(867)	(348)	(1,215)
Cash dividends declared:
Preferred				(1)				(1)
Common				(65)				(65)
Stock-based compensation			25					25
Common stock issued: compensation plans			(2)		5			3
Distributions							(66)	(66)
Contributions							8	8
Ending balance at Sep. 30, 2011	$ 55	$ 1,178	$ 7,545	$ 11,820	$ (3,954)	$ (1,725)	$ 3,364	$ 18,283

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