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, 2022		Mar. 31, 2022	Dec. 31, 2021		Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Assets
Other short-term Investments	[1]	$ 7,419			$ 34,572
ALLL		(2,014)	[1]	$ (1,908)	(1,892)	[1]	$ (2,033)	$ (2,208)	$ (2,453)
Other assets	[1]	13,694			11,444
Total Assets		206,782			211,116
Liabilities
Other liabilities	[1]	6,197			4,267
Long-term debt	[1]	10,990			11,821
Total Liabilities		187,812			188,906
Variable Interest Entity, Primary Beneficiary | Automobile And Solar Loan
Assets
Other short-term Investments		21			24
Indirect secured consumer loans		219			322
Other consumer loans		48			0
ALLL		(3)			(2)
Other assets		2			2
Total Assets		287			346
Liabilities
Other liabilities		10			1
Long-term debt		200			263
Total Liabilities		$ 210			$ 264

[1] Includes $21 and $24 of other short-term investments, $267 and $322 of portfolio loans and leases, $(3) and $(2) of ALLL, $2 and $2 of other assets, $10 and $1 of other liabilities, and $200 and $263 of long-term debt from consolidated VIEs that are included in their respective captions above at June 30, 2022 and December 31, 2021, respectively. For further information, refer to Note 12.