Loans and Leases - Total Loans and Leases Managed by the Bancorp (Details) - USD ($) $ in Millions		Sep. 30, 2024	Dec. 31, 2023
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		$ 117,280	$ 117,612
90 Days Past Due and Still Accruing		40	36
Loans held for sale		612	378
Total portfolio loans and leases	[1]	116,668	117,234
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		71,130	72,746
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		50,930	53,311
90 Days Past Due and Still Accruing		10	8
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		11,428	11,276
90 Days Past Due and Still Accruing		3	0
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		5,997	5,621
90 Days Past Due and Still Accruing		0	0
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		2,875	2,582
90 Days Past Due and Still Accruing		1	0
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		45,538	44,488
Consumer | 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		17,678	17,360
90 Days Past Due and Still Accruing		8	7
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		4,074	3,916
90 Days Past Due and Still Accruing		0	0
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		15,942	14,965
90 Days Past Due and Still Accruing		0	0
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		1,703	1,865
90 Days Past Due and Still Accruing		18	21
Consumer | Solar energy installation loans
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		4,078	3,728
90 Days Past Due and Still Accruing		0	0
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		2,575	2,988
90 Days Past Due and Still Accruing		$ 0	$ 0

[1] Includes $50 and $55 of other short-term investments, $1,131 and $1,573 of portfolio loans and leases, $(21) and $(28) of ALLL, $8 and $10 of other assets, $13 and $14 of other liabilities and $1,008 and $1,409 of long-term debt from consolidated VIEs that are included in their respective captions above at September 30, 2024 and December 31, 2023, respectively. For further information, refer to Note 12.