Other Nonint Income and Expense (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other Noninterest Income And Expense [Line Items]
Gain on sale of Vantiv, Inc. IPO	$ (272)
Total	574	250	406
Loss (gain) on debt extinguishment	(143)
Intangible asset amortization	199	157	181
Total	1,374	1,224	1,394
Other noninterest income
Other Noninterest Income And Expense [Line Items]
Gain on sale of Vantiv, Inc. IPO	(272)
Net gain from warrant and put options associated with sale of the processing business	67	39	5
Equity method income from interest in Vantiv, LLC	61	57	26
Operating lease income	60	58	62
Card holder fees	46	41	36
BOLI income (loss)	35	41	194
Banking center income	32	27	22
Insurance investment income	28	28	38
Consumer loan and lease fees	27	31	32
Gain (loss) on loan sales	20	37	51
Revenue From Related Parties	1	21	49
Loss on swap associated with the sale of VISA, Inc. class B shares	(45)	(83)	(19)
Loss on sale of OREO	(57)	(71)	(78)
Other, net	27	24	(12)
Total	574	250	406
Other noninterest expense
Other Noninterest Income And Expense [Line Items]
Losses and adjustments	187	129	187
Loan and lease	183	195	211
Loss (gain) on debt extinguishment	(169)	8	(17)
Marketing	128	115	98
FDIC insurance and other taxes	114	201	242
Affordable Housing Investments Impairment	90	85	100
Professional services fees	56	58	77
Travel	52	52	51
Postage and courier	48	49	48
Operating Lease	43	41	41
Data processing	40	29	24
Recruitment and education	28	31	31
OREO expense	21	34	33
Insurance	18	25	42
Supplies	17	18	24
Intangible asset amortization	13	22	43
Provision for unfunded commitments and letters of credit	(2)	(46)	(24)
Other	169	194	149
Total	$ 1,374	$ 1,224	$ 1,394