VIE (Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets) (Detail) - USD ($) $ in Millions		Mar. 31, 2018		Dec. 31, 2017		Mar. 31, 2017	Dec. 31, 2016	[1]
Assets
Cash and due from banks		$ 2,038		$ 2,514		$ 2,205	$ 2,392
Other short-term investments	[1]	1,747		2,753
Commercial mortgage loans		6,509		6,604
Automobile loans		9,018		9,112
ALLL		(1,138)	[1],[2]	(1,196)	[1],[3]	$ (1,238)	$ (1,253)	[3]
Other assets	[1]	7,326		6,975
Liabilities
Other liabilities	[1]	2,418		2,144
Long-term debt	[1]	14,800		14,904
Noncontrolling interests		20		20
Variable Interest Entity, Primary Beneficiary
Assets
Other short-term investments		66		62
Commercial mortgage loans		20		20
Automobile loans		1,115		1,277
ALLL		(6)		(6)
Other assets		6		7
Total Assets		1,201		1,360
Liabilities
Other liabilities		2		2
Long-term debt		1,031		1,190
Total liabilities		1,033		1,192
Noncontrolling interests		20		20
Variable Interest Entity, Primary Beneficiary | Automobile Loans
Assets
Other short-term investments		66		62
Commercial mortgage loans		0		0
Automobile loans		1,115		1,277
ALLL		(6)		(6)
Other assets		6		7
Total Assets		1,181		1,340
Liabilities
Other liabilities		2		2
Long-term debt		1,031		1,190
Total liabilities		1,033		1,192
Noncontrolling interests		0		0
Variable Interest Entity, Primary Beneficiary | Fifth Third Community Development Corporation Investments
Assets
Other short-term investments		0		0
Commercial mortgage loans		20		20
Automobile loans		0		0
ALLL		0		0
Other assets		0		0
Total Assets		20		20
Liabilities
Other liabilities		0		0
Long-term debt		0		0
Total liabilities		0		0
Noncontrolling interests		$ 20		$ 20

[1] Includes $ 66 and $ 62 of other short-term investments , $ 1,135 and $ 1,297 of portfolio loans and leases, $ (6) and $ (6) of ALLL, $ 6 and $ 7 of other assets, $ 2 and $ 2 of other liabilities, and $ 1,031 and $ 1,190 of long-term debt from consolidated VIEs that are included in their respe ctive captions above at March 31, 2018 and December 31, 2017 , respectively. For further information refer to Note 9 .

[2] Includes $ 1 related to leveraged leases at March 31, 2018 .

[3] Includes $ 1 related to leveraged leases at December 31, 2017 .