Total Loans And Leases Managed By The Bancorp (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	$ 85,676		$ 85,782
Commercial and Industrial Loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	36,782		36,077
Balance of Loans 90 days or More Past Due	1		1
Net Credit Losses	25	54
Commercial Mortgage Loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	8,777		9,116
Balance of Loans 90 days or More Past Due			22
Net Credit Losses	26	30
Commercial Construction
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	699		707
Balance of Loans 90 days or More Past Due			1
Net Credit Losses	3	18
Commercial Leases
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	3,568		3,549
Residential Mortgage
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	14,713		14,873
Balance of Loans 90 days or More Past Due	74		75
Net Credit Losses	20	37
Home Equity
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	9,727		10,018
Balance of Loans 90 days or More Past Due	53		58
Net Credit Losses	30	46
Automobile Loan
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	11,741		11,972
Balance of Loans 90 days or More Past Due	7		8
Net Credit Losses	4	9
Credit Card
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	2,043		2,097
Balance of Loans 90 days or More Past Due	29		30
Net Credit Losses	20	20
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
Balance	317		312
Net Credit Losses	5	6
Loans Held-for-Sale
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	2,691		2,939
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
Balance	88,367		88,721
Balance of Loans 90 days or More Past Due	164		195
Net Credit Losses	$ 133	$ 220