VIE (Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets) (Detail) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Assets
Other short-term investments	$ 6,319	$ 1,950
Indirect secured consumer loans	12,050	11,538
ALLL	(2,348)	(1,202)	$ (1,115)	$ (1,103)
Other assets	10,959	9,190
Total Assets	185,391	169,369
Liabilities
Other liabilities	3,576	2,422
Long-term debt	16,282	14,970
Total liabilities	163,518	148,166
Variable Interest Entity, Primary Beneficiary
Assets
Other short-term investments	69	74
ALLL	(14)	(7)
Other assets	6	8
Liabilities
Other liabilities	3	2
Long-term debt	1,083	1,253
Variable Interest Entity, Primary Beneficiary | Indirect secured consumer loans
Assets
Other short-term investments	69	74
Indirect secured consumer loans	1,185	1,354
Other assets	6	8
Total Assets	1,246	1,429
Liabilities
Other liabilities	3	2
Long-term debt	1,083	1,253
Total liabilities	$ 1,086	$ 1,255