Variable Interest Entities - Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets (Details) - USD ($) $ in Millions		Mar. 31, 2022		Dec. 31, 2021		Mar. 31, 2021	Dec. 31, 2020
Assets
Other short-term Investments	[1]	$ 20,529		$ 34,572
ALLL		(1,908)	[1]	(1,892)	[1]	$ (2,208)	$ (2,453)
Other assets	[1]	12,961		11,444
Total Assets		211,459		211,116
Liabilities
Other liabilities	[1]	7,263		4,267
Long-term debt	[1]	10,815		11,821
Total Liabilities		191,282		188,906
Variable Interest Entity, Primary Beneficiary | Automobile loan
Assets
Other short-term Investments		24		24
Indirect secured consumer loans		266		322
ALLL		(2)		(2)
Other assets		2		2
Total Assets		290		346
Liabilities
Other liabilities				1
Long-term debt		209		263
Total Liabilities		$ 209		$ 264

[1] Includes $24 and $24 of other short-term investments, $266 and $322 of portfolio loans and leases, $(2) and $(2) of ALLL, $2 and $2 of other assets, an immaterial amount and $1 of other liabilities, and $209 and $263 of long-term debt from consolidated VIEs that are included in their respective captions above at March 31, 2022 and December 31, 2021, respectively. For further information, refer to Note 11.