Loans & Leases - Total Loans And Leases Managed By The Bancorp (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	$ 110,488		$ 110,488		$ 95,872
Balance of Loans 90 days or More Past Due	128		128		93
Net Charge-Offs	78	$ 94	156	$ 175
Commercial and Industrial Loans | Commercial Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	51,275		51,275		44,407
Balance of Loans 90 days or More Past Due	19		19		4
Net Charge-Offs	20	47	38	74
Commercial mortgage loans | Commercial Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	10,720		10,720		6,977
Balance of Loans 90 days or More Past Due	11		11		2
Net Charge-Offs		2	(1)	2
Net Recoveries	0
Commercial construction loans | Commercial Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	5,264		5,264		4,657
Balance of Loans 90 days or More Past Due	1		1		0
Net Charge-Offs	0	0	0	0
Commercial leases | Commercial Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	3,677		3,677		3,600
Balance of Loans 90 days or More Past Due	0		0		0
Net Charge-Offs	3	0	3	0
Residential Mortgage | 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	17,808		17,808		16,041
Balance of Loans 90 days or More Past Due	47		47		38
Net Charge-Offs	(1)		0	4
Net Recoveries		2
Home Equity | Consumer Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	6,325		6,325		6,402
Balance of Loans 90 days or More Past Due	1		1		0
Net Charge-Offs	3	2	6	7
Indirect secured consumer loans | Consumer Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	10,403		10,403		8,976
Balance of Loans 90 days or More Past Due	11		11		12
Net Charge-Offs	7	8	20	19
Credit Card | Consumer Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	2,436		2,436		2,470
Balance of Loans 90 days or More Past Due	37		37		37
Net Charge-Offs	35	26	68	52
Other Consumer Loans | Consumer Portfolio Segment
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together [Line Items]
Balance	2,580		2,580		2,342
Balance of Loans 90 days or More Past Due	1		1		0
Net Charge-Offs	11	$ 7	22	$ 17
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	1,205		1,205		607
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	$ 109,283		$ 109,283		$ 95,265