Loans and Leases - Total Loans and Leases Managed by the Bancorp (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		$ 120,702		$ 120,702		$ 122,487
90 Days Past Due and Still Accruing		29		29		40
Loans and leases held for sale	[1]	614		614		1,007
Total portfolio loans and leases	[2],[3]	120,088		120,088		121,480
Total net charge-offs		124	$ 62	292	$ 159
Residential mortgage loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		17,826		17,826		18,562
90 Days Past Due and Still Accruing		6		6		7
Total net charge-offs		0	(1)	0	(2)
Commercial
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Total portfolio loans and leases		75,118		75,118		76,389
Commercial | Commercial and industrial loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		55,819		55,819		57,305
90 Days Past Due and Still Accruing		3		3		11
Total net charge-offs		65	34	127	76
Commercial | Commercial mortgage loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		11,122		11,122		11,020
90 Days Past Due and Still Accruing		0		0		0
Total net charge-offs		0	0	0	(1)
Commercial | Commercial construction loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		5,634		5,634		5,433
90 Days Past Due and Still Accruing		0		0		0
Total net charge-offs		0	(1)	1	2
Commercial | Commercial leases
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		2,624		2,624		2,704
90 Days Past Due and Still Accruing		0		0		2
Total net charge-offs		(1)	(1)	(1)	(1)
Consumer
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Total portfolio loans and leases		44,970		44,970		45,091
Consumer | Home equity
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		3,898		3,898		4,039
90 Days Past Due and Still Accruing		0		0		1
Total net charge-offs		0	(1)	1	(2)
Consumer | Indirect secured consumer loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		15,434		15,434		16,552
90 Days Past Due and Still Accruing		0		0		0
Total net charge-offs		19	10	48	23
Consumer | Credit card
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		1,817		1,817		1,874
90 Days Past Due and Still Accruing		20		20		18
Total net charge-offs		15	12	46	39
Consumer | Other consumer loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		6,528		6,528		4,998
90 Days Past Due and Still Accruing		0		0		$ 1
Total net charge-offs		$ 26	$ 10	$ 70	$ 25

[1] Includes $497 and $600 of residential mortgage loans held for sale measured at fair value at September 30, 2023 and December 31, 2022, respectively.

[2] Includes $113 and $123 of residential mortgage loans measured at fair value at September 30, 2023 and December 31, 2022, respectively.

[3] Includes $59 and $17 of other short-term investments, $1,728 and $185 of portfolio loans and leases, $(27) and $(2) of ALLL, $11 and $2 of other assets, $15 and $9 of other liabilities, and $1,553 and $118 of long-term debt from consolidated VIEs that are included in their respective captions above at September 30, 2023 and December 31, 2022, respectively. For further information, refer to Note 12.