CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) (UNAUDITED) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Net loss	$ (137)	$ (1,061)	$ (550)	$ (1,130)
Net change in unrealized gains (losses), net of tax, on:
Derivatives designated as cash flow hedges	34	(56)	84	4
Securities available-for-sale, not other-than-temporarily impaired	15	43	22	40
Other-than-temporarily impaired debt securities available-for-sale				(1)
Pension and postretirement benefit plan adjustments			1	1
Foreign currency translation adjustments, net of tax	4	(11)	4	(5)
Other comprehensive income (loss)	53	(24)	111	39
Total comprehensive income (loss)	$ (84)	$ (1,085)	$ (439)	$ (1,091)