Assets and Liabilities Measured at Fair Value on a Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	$ 2,672	[1]	$ 3,243	[1]
Loans carried at fair value	360	[2]	379	[2]
Servicing Asset at Fair Value, Amount	1,025		899
Deposits, Fair Value Disclosure	810		832
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	6,250		6,049
Loans Held-for-sale, Fair Value Disclosure	2,672		3,243
Loans carried at fair value	360		379
Servicing Asset at Fair Value, Amount	1,025		899
Other Assets, Fair Value Disclosure	120	[3]	178	[3]
Trading Liabilities, Fair Value Disclosure	1,348		1,161
Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	7,025		6,779
Available-for-sale Securities, Fair Value Disclosure	23,823		21,953
Trading Liabilities, Fair Value Disclosure	2,622		2,420
Deposits, Fair Value Disclosure	810		832
Debt Instrument, Fair Value Disclosure	1,632		1,622
Other Liabilities, Fair Value Disclosure	59	[3],[4]	46	[3],[4]
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	357		394
Available-for-sale Securities, Fair Value Disclosure	918		291
Loans Held-for-sale, Fair Value Disclosure	0		0
Loans carried at fair value	0		0
Servicing Asset at Fair Value, Amount	0		0
Other Assets, Fair Value Disclosure	0		2
Trading Liabilities, Fair Value Disclosure	561		591
Deposits, Fair Value Disclosure	0		0
Debt Instrument, Fair Value Disclosure	0		0
Other Liabilities, Fair Value Disclosure	0		0
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	6,601		6,327
Available-for-sale Securities, Fair Value Disclosure	21,956		20,748
Loans Held-for-sale, Fair Value Disclosure	2,666		3,235
Loans carried at fair value	0		0
Servicing Asset at Fair Value, Amount	0		0
Other Assets, Fair Value Disclosure	21	[3]	44	[3]
Trading Liabilities, Fair Value Disclosure	2,061		1,829
Deposits, Fair Value Disclosure	810		832
Debt Instrument, Fair Value Disclosure	1,632		1,622
Other Liabilities, Fair Value Disclosure	28	[3],[4]	15	[3],[4]
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	67		58
Available-for-sale Securities, Fair Value Disclosure	949		914
Loans Held-for-sale, Fair Value Disclosure	6		8
Loans carried at fair value	360		379
Servicing Asset at Fair Value, Amount	1,025		899
Other Assets, Fair Value Disclosure	99	[3]	132	[3]
Trading Liabilities, Fair Value Disclosure	0		0
Deposits, Fair Value Disclosure	0		0
Debt Instrument, Fair Value Disclosure	0		0
Other Liabilities, Fair Value Disclosure	31	[3],[4]	31	[3],[4]
Residential Mortgage, Loans Held For Sale [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	2,357		2,924
Residential Mortgage, Loans Held For Sale [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0		0
Residential Mortgage, Loans Held For Sale [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	2,351		2,916
Residential Mortgage, Loans Held For Sale [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	6		8
Corporate and Other [Member] | Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	315		319
Corporate and Other [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0		0
Corporate and Other [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	315		319
Corporate and Other [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Loans Held-for-sale, Fair Value Disclosure	0		0
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	152		111
Available-for-sale Securities, Fair Value Disclosure	820		222
Trading Liabilities, Fair Value Disclosure	555		582
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	152		111
Available-for-sale Securities, Fair Value Disclosure	820		222
Trading Liabilities, Fair Value Disclosure	555		582
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Trading Liabilities, Fair Value Disclosure	0		0
US Treasury Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Trading Liabilities, Fair Value Disclosure	0		0
US Government Agencies Debt Securities | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	646		462
Available-for-sale Securities, Fair Value Disclosure	2,285		2,069
US Government Agencies Debt Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
US Government Agencies Debt Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	646		462
Available-for-sale Securities, Fair Value Disclosure	2,285		2,069
US Government Agencies Debt Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	105		34
Available-for-sale Securities, Fair Value Disclosure	290		320
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	105		34
Available-for-sale Securities, Fair Value Disclosure	243		274
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	47		46
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	324		432
Available-for-sale Securities, Fair Value Disclosure	19,255		18,169
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	324		432
Available-for-sale Securities, Fair Value Disclosure	19,255		18,169
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	202		209
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0		0
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	0		0
Mortgage-backed Securities, Issued by Private Enterprises [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale Securities, Fair Value Disclosure	202		209
Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	64		55
Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	3		3
Collateralized Debt Obligations [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	61		52
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	5		36
Available-for-sale Securities, Fair Value Disclosure	156		216
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		31
Available-for-sale Securities, Fair Value Disclosure	133		195
Asset-backed Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	5		5
Available-for-sale Securities, Fair Value Disclosure	23		21
Corporate And Other Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	647		567
Available-for-sale Securities, Fair Value Disclosure	45		46
Trading Liabilities, Fair Value Disclosure	256		173
Corporate And Other Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Trading Liabilities, Fair Value Disclosure	0		0
Corporate And Other Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	646		566
Available-for-sale Securities, Fair Value Disclosure	40		41
Trading Liabilities, Fair Value Disclosure	256		173
Corporate And Other Debt Securities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	1		1
Available-for-sale Securities, Fair Value Disclosure	5		5
Trading Liabilities, Fair Value Disclosure	0		0
Commercial Paper [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	296		28
Commercial Paper [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Commercial Paper [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	296		28
Commercial Paper [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Equity Securities | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	100		100
Available-for-sale Securities, Fair Value Disclosure	770	[5]	702	[5]
Trading Liabilities, Fair Value Disclosure	6		9
Equity Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	100		100
Available-for-sale Securities, Fair Value Disclosure	98	[5]	69	[5]
Trading Liabilities, Fair Value Disclosure	6		9
Equity Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	0		0
Trading Liabilities, Fair Value Disclosure	0		0
Equity Securities | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Available-for-sale Securities, Fair Value Disclosure	672	[5]	633	[5]
Trading Liabilities, Fair Value Disclosure	0		0
Trading Loans [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	2,200		2,319
Trading Loans [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Trading Loans [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	2,200		2,319
Trading Loans [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Netting [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	775	[6]	730	[6]
Trading Liabilities, Fair Value Disclosure	1,300	[6]	1,300	[7]
Derivative Financial Instruments, Assets | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	2,486		2,635
Derivative Financial Instruments, Assets | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	105		183
Derivative Financial Instruments, Assets | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	2,381		2,452
Derivative Financial Instruments, Assets | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Account Assets, Fair Value Disclosure	0		0
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Liabilities, Fair Value Disclosure	1,805		1,656
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Liabilities, Fair Value Disclosure	0		0
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Liabilities, Fair Value Disclosure	1,805		1,656
Derivative Financial Instruments, Liabilities [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Trading Liabilities, Fair Value Disclosure	$ 0		$ 0

[1] 1 Includes loans held for sale, at fair value, of consolidated VIEs315 319

[2] 2 Includes loans of consolidated VIEs355 365

[3] These amounts include IRLCs and derivative financial instruments entered into by the Mortgage line of business to hedge its interest rate risk.

[4] These amounts include the derivative associated with the Company's sale of Visa shares during the year ended December 31, 2009, certain CDS, and contingent consideration obligations related to acquisitions.

[5] Includes $268 million of FHLB of Atlanta stock, $402 million of Federal Reserve Bank stock, $98 million in mutual fund investments, and $2 million of other equity securities.

[6] Amount represents the cash collateral received from or deposited with derivative counterparties. Amount is offset with derivatives in the Consolidated Balance Sheets at March 31, 2013.

[7] Amount represents the cash collateral received from or deposited with derivative counterparties. Amount is offset with derivatives in the Consolidated Balance Sheets at December 31, 2012.