Loans and Leases - Total Loans and Leases Managed by the Bancorp (Details) - USD ($) $ in Millions		Mar. 31, 2021	Dec. 31, 2020
Assets that Continue to be Recognized, Securitized or Asset-backed Financing Arrangement Assets and any Other Financial Assets Managed Together
Carrying Value		$ 114,332	$ 113,523
90 Days Past Due and Still Accruing		124	163
Loans and leases held for sale	[1]	5,477	4,741
Total portfolio loans and leases	[2],[3]	108,855	108,782
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		21,173	20,393
90 Days Past Due and Still Accruing		73	70
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		69,028	68,997
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		49,165	49,895
90 Days Past Due and Still Accruing		8	39
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		10,490	10,609
90 Days Past Due and Still Accruing		7	8
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		6,198	5,815
90 Days Past Due and Still Accruing		1	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		3,255	2,954
90 Days Past Due and Still Accruing		0	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		39,827	39,785
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		4,815	5,183
90 Days Past Due and Still Accruing		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		14,336	13,653
90 Days Past Due and Still Accruing		8	10
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		1,810	2,007
90 Days Past Due and Still Accruing		25	31
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		3,090	3,014
90 Days Past Due and Still Accruing		$ 1	$ 2

[1] Includes $1,801 and $1,481 of residential mortgage loans held for sale measured at fair value and $9 and $0 of commercial loans held for sale measured at fair value at March 31, 2021 and December 31, 2020, respectively.

[2] Includes $153 and $161 of residential mortgage loans measured at fair value at March 31, 2021 and December 31, 2020, respectively.

[3] Includes $54 and $55 of other short-term investments, $633 and $756 of portfolio loans and leases, $(5) and $(7) of ALLL, $4 and $5 of other assets, $1 and $2 of other liabilities, and $540 and $656 of long-term debt from consolidated VIEs that are included in their respective captions above at March 31, 2021 and December 31, 2020, respectively. For further information, refer to Note 11.