Total Loans And Leases Managed By The Bancorp (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	$ 90,624		$ 90,624		$ 88,614
Commercial and Industrial Loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	41,111		41,111		39,347
Net Credit Losses	50	44	177	102
Commercial Mortgage Loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	7,566		7,566		8,069
Balance of Loans 90 days or More Past Due	1		1
Net Credit Losses	5	2	16	39
Commercial Construction
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	1,704		1,704		1,041
Net Credit Losses		(2)	12	1
Commercial Leases
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	3,555		3,555		3,626
Net Credit Losses				1
Residential Mortgage
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	13,520		13,520		13,570
Balance of Loans 90 days or More Past Due	57		57		66
Net Credit Losses	9	12	31	47
Home Equity
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	8,987		8,987		9,246
Net Credit Losses	14	19	49	71
Automobile Loan Securitizations
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	12,121		12,121		11,984
Balance of Loans 90 days or More Past Due	8		8		8
Net Credit Losses	7	6	20	15
Credit Card
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	2,317		2,317		2,294
Balance of Loans 90 days or More Past Due	21		21		29
Net Credit Losses	23	19	62	57
Other Consumer Loans and Leases
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	384		384		381
Net Credit Losses	7	9	17	20
Loans Held-for-Sale
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	641		641		944
Loans and Leases Managed and Securitized
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	91,265		91,265		89,558
Balance of Loans 90 days or More Past Due	87		87		103
Net Credit Losses	$ 115	$ 109	$ 384	$ 353