Variable Interest Entities - Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets (Details) - USD ($) $ in Millions		Jun. 30, 2023		Mar. 31, 2023	Dec. 31, 2022		Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Assets
Other short-term investments	[1]	$ 10,943			$ 8,351
ALLL		(2,327)	[1]	$ (2,215)	(2,194)	[1]	$ (2,014)	$ (1,908)	$ (1,892)
Other assets	[1]	12,973			13,459
Total Assets		207,276			207,452
Liabilities
Other liabilities	[1]	5,316			5,881
Long-term debt	[1]	12,278			13,714
Total Liabilities		189,467			190,125
Variable Interest Entity, Primary Beneficiary | Automobile And Solar Loan
Assets
Other short-term investments		1			17
Indirect secured consumer loans		0			141
Other consumer loans		42			44
ALLL		(1)			(2)
Other assets		0			2
Total Assets		42			202
Liabilities
Other liabilities		9			9
Long-term debt		37			118
Total Liabilities		$ 46			$ 127

[1] Includes $1 and $17 of other short-term investments, $42 and $185 of portfolio loans and leases, $(1) and $(2) of ALLL, $0 and $2 of other assets, $9 and $9 of other liabilities, and $37 and $118 of long-term debt from consolidated VIEs that are included in their respective captions above at June 30, 2023 and December 31, 2022, respectively. For further information, refer to Note 11.