CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2011		Dec. 31, 2010
Cash and due from banks	$ 2,663	[1]	$ 2,159	[1]
Other short-term investments	1,781		1,515
Commercial mortgage loans	10,138	[1]	10,845	[1]
Home equity	10,719	[1]	11,513	[1]
Automobile loans	11,827	[1]	10,983	[1]
Allowance for loan and lease losses	(2,255)	[1]	(3,004)	[1]
Other assets	8,863	[1]	8,400	[1]
Other liabilities	3,270	[1]	2,979	[1]
Long-term debt	9,682	[1]	9,558	[1]
Available-for-sale and other securities, amortized cost	14,614		14,919
Held-to-maturity securities, fair value	322		353
Residential mortgage loans held for sale	2,751		1,892
Residential mortgage loans measured at fair value	65		46
Common stock, stated value	$ 2.22		$ 2.22
Common stock, authorized	2,000,000,000		2,000,000,000
Common stock, outstanding	919,804,436		796,272,522
Common stock, treasury shares	4,088,145		5,231,666
Capital surplus, warrants			239
Capital surplus, shares of common stock to purchase			43,617,747
Capital surplus, initial exercise price			$ 11.72
Variable Interest Entities
Cash and due from banks	30		52
Other short-term investments	7
Commercial mortgage loans	50		29
Home equity	223		241
Automobile loans	259		648
Allowance for loan and lease losses	(10)		(14)
Other assets	4		7
Other liabilities	4		12
Long-term debt	$ 191		$ 692
Preferred stock Series F
Preferred stock, liquidation preference	$ 25,000		$ 25,000
Preferred stock, issued			136,320
Preferred stock, outstanding			136,320
Preferred Stock
Preferred stock, Convertible	2,159.8272		2,159.8272
Preferred stock, authorized	317,680		317,680
Preferred stock Series G
Preferred stock, liquidation preference	$ 25,000		$ 25,000
Preferred stock, authorized	46,000		46,000
Preferred stock, issued	16,450		16,451
Preferred stock, outstanding	16,450		16,451

[1] At December 31, 2011 and 2010, includes $30 and $52 of cash, $7 of other short-term investments, $50 and $29 of commercial mortgage loans, $223 and $241 of home equity loans, $259 and $648 of automobile loans, ($10) and ($14) of ALLL, $4 and $7 of other assets, $4 and $12 of other liabilities, $191 and $692 of long-term debt from consolidated VIEs that are included in their respective captions. See Note 11.