VIE (Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets) (Detail) - USD ($) $ in Millions		Sep. 30, 2016		Jun. 30, 2016	Dec. 31, 2015		Sep. 30, 2015	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and due from banks		$ 2,164	[1]		$ 2,540	[1]	$ 2,455		$ 3,091
Commercial mortgage loans		6,856			6,957
Automobile loans		10,349			11,493
ALLL		(1,272)	[1],[2]	$ (1,299)	(1,272)	[1],[3]	$ (1,261)	$ (1,293)	$ (1,322)
Other assets	[1],[4]	8,105			7,965
Liabilities
Other liabilities	[1]	2,516			2,341
Long-term debt	[1],[4]	16,890			15,810
Noncontrolling interests		28			31
Variable Interest Entity, Primary Beneficiary
Assets
Cash and due from banks		112			152
Commercial mortgage loans		47			47
Automobile loans		1,513			2,490
ALLL		(28)			(28)
Other assets		11			14	[5]
Total Assets		1,655			2,675	[5]
Liabilities
Other liabilities		3			3
Long-term debt		1,422			2,487	[5]
Total liabilities		1,425			2,490	[5]
Noncontrolling interests		28			31
Variable Interest Entity, Primary Beneficiary | Automobile Loans
Assets
Cash and due from banks		111			151
Commercial mortgage loans		0			0
Automobile loans		1,513			2,490
ALLL		(8)			(11)
Other assets		11			14	[5]
Total Assets		1,627			2,644	[5]
Liabilities
Other liabilities		3			3
Long-term debt		1,422			2,487	[5]
Total liabilities		1,425			2,490	[5]
Noncontrolling interests		0			0
Variable Interest Entity, Primary Beneficiary | Fifth Third Community Development Corporation Investments
Assets
Cash and due from banks		1			1
Commercial mortgage loans		47			47
Automobile loans		0			0
ALLL		(20)			(17)
Other assets		0			0	[5]
Total Assets		28			31	[5]
Liabilities
Other liabilities		0			0
Long-term debt		0			0	[5]
Total liabilities		0			0	[5]
Noncontrolling interests		$ 28			$ 31

[1] Includes $ 112 and $ 152 of cash and due from banks, $ 1,560 and $ 2,537 of portfolio loans and leases , $ (28) and $ (28) of ALLL, $ 11 and $ 14 of other assets, $ 3 and $ 3 of other liabilities , and $ 1,422 and $ 2,487 of long-term debt from consolidated VIEs that are included in their respective captions above at September 30, 2016 and December 31, 2015 , respectively. For further information refer to Note 10 .

[2] Includes $ 2 related to leveraged leases at September 30, 2016 .

[3] Includes $ 5 related to leveraged leases at December 31, 2015 .

[4] Upon adoption of ASU 2015-03 on January 1, 2016, the December 31, 2015 Condensed Consolidated Balance Sheet was adjusted to reflect the reclassification of $34 of debt issuance costs from other assets to long-term debt. For further information refer to Note 3.

[5] (a) Upon adoption of ASU 2015-03 on January 1, 2016, the December 31, 2015 Condensed Consolidated Balanc e Sheet was adjusted to reflect the reclassification of $ 6 of debt issuance costs from other assets to long-term debt . For further information refer to Note 3.