Consolidated Balance Sheets (Parenthetical) (USD $)	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2011 Variable Interest Entity, Primary Beneficiary	Dec. 31, 2010 Variable Interest Entity, Primary Beneficiary
Loans held for sale	$ 2,141,000,000	[1]	$ 3,168,000,000	[1]
Loans held for sale (loans at fair value: $2,141 and $3,168 as of December 31, 2011 and 2010, respectively)	2,353,000,000	[1]	3,501,000,000	[1]	315,000,000	316,000,000
Loans carried at fair value	433,000,000	[2]	492,000,000	[2]
Loans (loans at fair value: $433 and $492 as of December 31, 2011 and 2010, respectively)	122,495,000,000	[2]	115,975,000,000	[2]	3,322,000,000	2,869,000,000
Other intangible assets, MSRs at fair value	921,000,000		1,439,000,000
Long-term debt (debt at fair value: $1,997 and $2,837 as of December 31, 2011 and 2010, respectively)	10,908,000,000	[3]	13,648,000,000	[3]	722,000,000	764,000,000
Brokered deposits	1,018,000,000		1,213,000,000
Long-term debt, fair value	1,997,000,000	[3]	2,837,000,000	[3]	289,000,000	290,000,000
Common stock, par value	$ 1.00		$ 1.00
Treasury Stock, Value	(792,000,000)	[4]	(888,000,000)	[4]
Noncontrolling Interest, Increase from Equity Issuance or Sale of Parent Equity Interest	$ 107,000,000		$ 129,000,000

[1] Includes loans held for sale, at fair value, of consolidated VIEs $315 $316

[2] Includes loans of consolidated VIEs $3,322 $2,869

[3] Includes debt of consolidated VIEs ($289 and $290 at fair value at December 31, 2011 and 2010, respectively) $722 $764

[4] Includes $107 million $129 million as of December 31, 2011 and 2010, respectively, related to noncontrolling interest held.