Classifications of Consolidated VIE Assets, Liabilities and Noncontrolling Interest Included in the Bancorp's Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and due from banks	$ 3,091	[1]	$ 3,178	[1]	$ 2,441	$ 2,663
Commercial mortgage loans	7,399	[1]	8,066	[1]
Automobile loans	12,037	[1]	11,984	[1]
Allowance for loan and lease losses	(1,322)	[1],[2]	(1,582)	[1],[3]	(1,854)	(2,255)
Other assets	8,241	[1]	8,358	[1]
Liabilities
Other liabilities	2,642	[1]	3,487	[1]
Long-term debt	14,967	[1]	9,633	[1]
Noncontrolling interests	39		37
Variable Interest Entity, Primary Beneficiary
Assets
Cash and due from banks	179		49
Commercial mortgage loans	47		48
Automobile loans	3,331		1,010
Allowance for loan and lease losses	(22)		(15)
Other assets	25		13
Total Assets	3,560		1,105
Liabilities
Other liabilities	5		1
Long-term debt	3,434		1,048
Total liabilities	3,439		1,049
Noncontrolling interests	39		37
Variable Interest Entity, Primary Beneficiary | Automobile Loan Securitizations
Assets
Cash and due from banks	178		49
Automobile loans	3,331		1,010
Allowance for loan and lease losses	(11)		(2)
Other assets	23		11
Total Assets	3,521		1,068
Liabilities
Other liabilities	5		1
Long-term debt	3,434		1,048
Total liabilities	3,439		1,049
Variable Interest Entity, Primary Beneficiary | Fifth Third Community Development Corporation Investments
Assets
Cash and due from banks	1
Commercial mortgage loans	47		48
Allowance for loan and lease losses	(11)		(13)
Other assets	2		2
Total Assets	39		37
Liabilities
Noncontrolling interests	$ 39		$ 37

[1] At December 31, 2014 and 2013, includes $179 and $49 of cash and due from banks, $47 and $48 of commercial mortgage loans, $3,331 and $1,010 of automobile loans, $(22) and $(15) of ALLL, $25 and $13 of other assets, $5 and $1 of other liabilities, $3,434 and $1,048 of long-term debt from consolidated VIEs that are included in their respective captions. For further information, refer to Note 10.

[2] Includes $6 related to leveraged leases.

[3] Includes $9 related to leveraged leases.