CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Sep. 30, 2011		Dec. 31, 2010		Sep. 30, 2010		Sep. 30, 2011 Preferred stock Series F	Dec. 31, 2010 Preferred stock Series F	Sep. 30, 2010 Preferred stock Series F	Sep. 30, 2011 Preferred Stock	Dec. 31, 2010 Preferred Stock	Sep. 30, 2010 Preferred Stock	Sep. 30, 2011 Preferred stock Series G	Dec. 31, 2010 Preferred stock Series G	Sep. 30, 2010 Preferred stock Series G	Sep. 30, 2011 Variable Interest Entities	Dec. 31, 2010 Variable Interest Entities	Sep. 30, 2010 Variable Interest Entities
Cash and due from banks	$ 2,348,000,000	[1]	$ 2,159,000,000	[1]	$ 2,215,000,000	[1]											$ 52,000,000
Other short-term investments	2,028,000,000	[1]	1,515,000,000	[1]	3,271,000,000	[1]										7,000,000	7,000,000
Commercial mortgage loans	10,330,000,000	[1]	10,845,000,000	[1]	10,985,000,000	[1]											29,000,000	29,000,000
Home equity	10,920,000,000	[1]	11,513,000,000	[1]	11,774,000,000	[1]										228,000,000	241,000,000	248,000,000
Automobile loans	11,593,000,000	[1]	10,983,000,000	[1]	10,738,000,000	[1]										334,000,000	648,000,000	771,000,000
Allowance for loan and lease losses	(2,439,000,000)	[1]	(3,004,000,000)	[1]	(3,194,000,000)	[1]										(10,000,000)	(14,000,000)	(15,000,000)
Other assets	9,163,000,000	[1]	8,400,000,000	[1]	8,704,000,000	[1]										3,000,000	7,000,000	7,000,000
Other liabilities	3,372,000,000	[1]	2,979,000,000	[1]	3,082,000,000	[1]										5,000,000	12,000,000	17,000,000
Long-term debt	9,800,000,000	[1]	9,558,000,000	[1]	10,953,000,000	[1]										270,000,000	692,000,000	834,000,000
Available-for-sale and other securities, amortized cost	15,427,000,000		14,919,000,000		15,308,000,000
Held-to-maturity securities, fair value	337,000,000		353,000,000		354,000,000
Loans held for sale, residential mortgage loans held for sale measured at fair value	1,593,000,000		1,892,000,000		1,879,000,000
Residential mortgage loans measured at fair value	62,000,000		46,000,000		42,000,000
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	919,778,512		796,272,522		796,283,198,000,000
Common stock, treasury shares	4,114,068		5,231,666		5,220,989
Preferred stock, Convertible													2,159.8272	2,159.8272	2,159.8272
Preferred stock, no par value										$ 0	$ 0	$ 0
Preferred stock, liquidation preference							$ 25,000	$ 25,000	$ 25,000				$ 25,000	$ 25,000	$ 25,000
Preferred stock, authorized										317,680	317,680	317,680	46,000	46,000	46,000
Preferred stock, issued					7		0	136,320	136,320	0	0	0	16,450	16,451	16,451
Preferred stock, outstanding							0	136,320	136,320				16,450	16,450	16,450
Capital surplus, warrants								239	239
Capital surplus, shares of common stock to purchase								43,617,747	43,617,747
Capital surplus, initial exercise price								$ 11.72	$ 11.72

[1] Includes $35, $52, and $56 of cash, $7, $7 and $7 of other short-term investments, $29, $29 and $29 of commercial mortgage loans, $228, $241 and $248 of home equity loans, $334, $648 and $771 of automobile loans, ($10), ($14) and ($15) of ALLL, $3, $7 and $7 of other assets, $5, $12 and $17 of other liabilities and $270, $692 and $834 of long-term debt from consolidated VIEs that are included in their respective captions above at September 30, 2011, December 31, 2010 and September 30, 2010, respectively. See Note 9.