Total Loans And Leases Managed By The Bancorp (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 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	$ 87,231		$ 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	38,260		36,077
Balance of Loans 90 days or More Past Due	3		1
Net Credit Losses	102	129
Commercial Mortgage Loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	8,058		9,116
Balance of Loans 90 days or More Past Due			22
Net Credit Losses	39	83
Commercial Construction
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	879		707
Balance of Loans 90 days or More Past Due			1
Net Credit Losses	1	22
Commercial Leases
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	3,572		3,549
Net Credit Losses	1	8
Residential Mortgage
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	13,832		14,873
Balance of Loans 90 days or More Past Due	73		75
Net Credit Losses	47	99
Home Equity
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	9,356		10,018
Balance of Loans 90 days or More Past Due	46		58
Net Credit Losses	71	122
Automobile Loan
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	12,072		11,972
Balance of Loans 90 days or More Past Due	8		8
Net Credit Losses	15	23
Credit Card
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Balance	2,157		2,097
Balance of Loans 90 days or More Past Due	26		30
Net Credit Losses	57	56
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	375		312
Net Credit Losses	20	15
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	1,330		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	88,561		88,721
Balance of Loans 90 days or More Past Due	156		195
Net Credit Losses	$ 353	$ 557