Huntington Bancshares Incorporated Annual report pursuant to Section 13 and 15(d)

Loans sales and securitizations (Details Textuals) (USD $)	12 Months Ended		12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Dec. 31, 2011 Residential Mortgage [Member]	Dec. 31, 2010 Residential Mortgage [Member]	Dec. 31, 2009 Residential Mortgage [Member]	Dec. 31, 2011 Automobile Loan [Member]	Dec. 31, 2010 Automobile Loan [Member]	Dec. 31, 2009 Automobile Loan [Member]
Loans sales and securitizations (Textuals) [Abstract]
Total servicing fees included in mortgage banking income			$ 49,100,000	$ 48,100,000	$ 48,500,000
Expected potential automobile loan securitizaton, maximum	1,300,000,000
Total servicing income on sold automobile loans						2,000,000	2,500,000	6,400,000
Total of automobile loans transferred in a securitization transaction		1,000,000,000
Gain or loss from sale of automobile loans in securitizations	15,500,000,000
Net proceeds received in securitization transaction	1,000,000,000
Unpaid principal balance of third party serviced loans			$ 15,900,000,000	$ 15,900,000,000	$ 16,000,000,000	$ 900,000,000	$ 100,000,000	$ 1,100,000,000
Actual automobile servicing income assumption, low	0.55%
Actual automobile servicing income assumption, high	1.00%
Adequate compensation for servicing automobile loans assumption, low	0.45%
Adequate compensation for servicing of automobile loans assumption, high	0.70%
Other anciallary fees assumption for automobile loans, low	0.35%
Other ancillary fees for automobile loans assumption, high	0.50%
Discount rate assumption for automobile loans, approximate	10.00%