CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 31, 2012		Dec. 31, 2011		Mar. 31, 2011
Cash and due from banks	$ 2,235	[1]	$ 2,663	[1]	$ 2,121	[1]
Other short-term investments	1,628	[1]	1,781	[1]	2,481	[1]
Commercial mortgage loans	9,909	[1]	10,138	[1]	10,510	[1]
Home equity	10,493	[1]	10,719	[1]	11,222	[1]
Automobile loans	11,832	[1]	11,827	[1]	11,129	[1]
Allowance for loan and lease losses	(2,126)	[1]	(2,255)	[1]	(2,805)	[1]
Other assets	8,504	[1]	8,863	[1]	7,967	[1]
Other liabilities	3,066	[1]	3,270	[1]	2,948	[1]
Long-term debt	9,648	[1]	9,682	[1]	10,555	[1]
Available-for-sale and other securities, amortized cost	15,341		14,614		14,707
Held-to-maturity securities, fair value	321		322		346
Residential mortgage loans held for sale	1,429		2,751		1,017
Residential mortgage loans measured at fair value	67		65		54
Common stock, stated value	$ 2.22		$ 2.22		$ 2.22
Common stock, authorized	2,000,000,000		2,000,000,000		2,000,000,000
Common stock, outstanding	920,056,340		919,804,436		918,728,008
Common stock, treasury shares	3,836,240		4,088,145		5,164,573
Variable Interest Entities
Cash and due from banks	19		30		54
Other short-term investments	4		7		7
Commercial mortgage loans	50		50		29
Home equity	217		223		236
Automobile loans	105		259		529
Allowance for loan and lease losses	(7)		(10)		(12)
Other assets	3		4		5
Other liabilities	3		4		10
Long-term debt	$ 125		$ 191		$ 492
Preferred Stock
Preferred stock, authorized	317,680		317,680		317,680
Preferred stock Series G
Preferred stock, Convertible	2,159.8272		2,159.8272		2,159.8272
Preferred stock, liquidation preference	$ 25,000		$ 25,000		$ 25,000
Preferred stock, authorized	46,000		46,000		46,000
Preferred stock, issued	16,450		16,451		16,451
Preferred stock, outstanding	16,450		16,451		16,451

[1] Includes $19, $30 and $54 of cash, $4, $7 and $7of other short-term investments, $50, $50 and $29 of commercial mortgage loans, $217, $223 and $236 of home equity loans, $105, $259 and $529 of automobile loans, ($7), ($10) and ($12) of ALLL, $3, $4 and $5 of other assets, $3, $4 and $10 of other liabilities, $125, $191and $492 of long-term debt from consolidated VIEs that are included in their respective captions above at March 31, 2012, December 31, 2011 and March 31, 2011, respectively. See Note 8.