Consolidated Statement of Comprehensive Income/(Loss) (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 income/(loss)	$ 1,077	$ 215	$ 1,602	$ 573
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax	(1,448)	173	(1,256)	294
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	204	182	34	129
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax	5	4	(23)	(13)
Other Comprehensive Income (Loss), Net of Tax	(1,239)	359	(1,245)	410
Comprehensive Income (Loss), Net of Tax, Attributable to Parent	$ (162)	$ 574	$ 357	$ 983