Variable Interest Entities - Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets (Details) - USD ($) $ in Millions		Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022	Dec. 31, 2021
Assets
Other short-term investments	[1]	$ 17,120		$ 22,082
ALLL		(2,352)	[1]	(2,322)	[1]	$ (2,194)	$ (1,892)
Other assets	[1]	12,857		12,538
Total Assets		212,927		214,574
Liabilities
Other liabilities	[1]	4,902		4,861
Long-term debt	[1]	14,337		16,380
Total Liabilities		193,282		195,402
Variable Interest Entity, Primary Beneficiary | Automobile And Solar Loan
Assets
Other short-term investments		51		55
Indirect secured consumer loans		967		1,535
Solar energy installation loans		33		38
ALLL		(19)		(28)
Other assets		5		10
Total Assets		1,037		1,610
Liabilities
Other liabilities		12		14
Long-term debt		889		1,409
Total Liabilities		$ 901		$ 1,423

[1] Includes $51 and $55 of other short-term investments, $1,000 and $1,573 of portfolio loans and leases, $(19) and $(28) of ALLL, $5 and $10 of other assets, $12 and $14 of other liabilities and $889 and $1,409 of long-term debt from consolidated VIEs that are included in their respective captions above at December 31, 2024 and 2023, respectively. For further information, refer to Note 12.