Quarterly report pursuant to Section 13 or 15(d)

VIEs (Consolidated and Unconsolidated) (Details)

v3.3.1.900
VIEs (Consolidated and Unconsolidated) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Jun. 30, 2015
Sep. 30, 2014
Dec. 31, 2012
Mar. 31, 2012
Sep. 30, 2011
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Dec. 31, 2010
Assets                        
Cash $ 1,024,358           $ 1,024,358   $ 1,220,565      
Loans and leases [1] 49,655,909           49,655,909   47,655,726      
Allowance for loan and lease losses (591,938) $ (599,542) $ (631,036)       (591,938) $ (631,036) (605,196) $ (635,101) $ (647,870)  
Net loans and leases 49,063,971           49,063,971   47,050,530      
Accrued income and other assets 1,984,738           1,984,738   1,807,208      
Total assets 70,210,178           70,210,178   66,298,010      
Liabilities                        
Long-term borrowings 6,359,445           6,359,445   4,335,962      
Accrued interest and other liabilities 1,569,573           1,569,573   1,504,626      
Total liabilities 63,627,541           63,627,541   59,969,840      
Equity                        
Total liabilities and shareholders’ equity $ 70,210,178           70,210,178   66,298,010      
Variable Interest Entities (Textuals) [Abstract]                        
Total of automobile loans transferred in securitization transactions   $ 800,000   $ 1,000,000 $ 1,300,000 $ 1,000,000            
Maximum year to defer payment of interest on debenture not exceeding five years                      
Macquarie Equipment Funding Trust Series 2012A [Member]                        
Assets                        
Cash $ 0           0          
Loans and leases 40,968           40,968          
Allowance for loan and lease losses 0           0          
Net loans and leases 40,968           40,968          
Accrued income and other assets 0           0          
Total assets 40,968           40,968          
Liabilities                        
Long-term borrowings 34,192           34,192          
Accrued interest and other liabilities 0           0          
Total liabilities 34,192           34,192          
Equity                        
Beneficial interest owned by third party 6,776           6,776          
Total liabilities and shareholders’ equity 40,968           40,968          
Consolidated Trusts                        
Assets                        
Cash 0           0   0      
Loans and leases 221,133           221,133   0      
Allowance for loan and lease losses 0           0   0      
Net loans and leases 221,133           221,133   0      
Accrued income and other assets 229           229   243      
Total assets 221,362           221,362   243      
Liabilities                        
Long-term borrowings 183,579           183,579   0      
Accrued interest and other liabilities 229           229   243      
Total liabilities 183,808           183,808   243      
Equity                        
Beneficial interest owned by third party 37,554           37,554   0      
Total liabilities and shareholders’ equity 221,362           221,362   243      
Franklin 2009 Trust                        
Assets                        
Cash 0           0   0      
Loans and leases 0           0   0      
Allowance for loan and lease losses 0           0   0      
Net loans and leases 0           0   0      
Accrued income and other assets 229           229   243      
Total assets 229           229   243      
Liabilities                        
Long-term borrowings 0           0   0      
Accrued interest and other liabilities 229           229   243      
Total liabilities 229           229   243      
Equity                        
Beneficial interest owned by third party 0           0   0      
Total liabilities and shareholders’ equity 229           229   243      
Huntington Technology Funding Trust Series 2014A                        
Assets                        
Cash 0           0          
Loans and leases 180,165           180,165          
Allowance for loan and lease losses 0           0          
Net loans and leases 180,165           180,165          
Accrued income and other assets 0           0          
Total assets 180,165           180,165          
Liabilities                        
Long-term borrowings 149,387           149,387          
Accrued interest and other liabilities 0           0          
Total liabilities 149,387           149,387          
Equity                        
Beneficial interest owned by third party 30,778           30,778          
Total liabilities and shareholders’ equity 180,165           180,165          
Trust Preferred Securities Total [Member]                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 13,919           13,919   13,919      
Total liabilities 317,098           317,098   317,075      
Maximum exposure to loss 0           0   0      
2015-1 Automobile Trust                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 9,378           9,378          
Total liabilities 0           0          
Maximum exposure to loss 9,378           9,378          
2012-2 Automobile Trust                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 1,231           1,231   3,220      
Total liabilities 0           0   0      
Maximum exposure to loss 1,231           1,231   3,220      
2012-1 Automobile Trust                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 445           445   2,136      
Total liabilities 0           0   0      
Maximum exposure to loss 445           445   2,136      
2011 Automobile Trust                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 0           0   944      
Total liabilities 0           0   0      
Maximum exposure to loss 0           0   944      
Tower Hill Securities Inc.                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 46,591           46,591   55,611      
Total liabilities 65,000           65,000   65,000      
Maximum exposure to loss 46,591           46,591   55,611      
Variable Interest Entities (Textuals) [Abstract]                        
Municipal securities                       $ 92,100
Huntington Preferred Capital Inc. Class E Preferred Stock                       86,000
Cash                       6,100
Tower Hill Securities, Inc. Common and Preferred Stock                       184,100
Mandatorily Redeemable Securities issued by Tower Hill Securities Inc.                       $ 65,000
Low Income Housing Tax Credit Partnerships                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 407,191           407,191   368,283      
Total liabilities 181,788           181,788   154,861      
Maximum exposure to loss 407,191           407,191   368,283      
Affortable Housing Tax Credit Investments [Abstract]                        
Affordable housing tax credit investments 646,215           646,215   576,381      
Amortization (239,024)               (208,098)      
Net affordable housing tax credit investments 407,191           407,191   368,283      
Unfunded commitments 181,788           181,788   154,861      
Tax credits and other tax benefits recognized 16,412   13,370       46,592 41,430        
Unconsolidated Trusts                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 567,500           567,500   527,513      
Total liabilities 591,175           591,175   557,696      
Maximum exposure to loss 553,581           553,581   513,594      
Proportional Amortization Method                        
Proportional amortization method                        
Tax Credit Amortization Expense 10,942   9,659       33,235 28,537        
Equity Method                        
Equity method                        
Tax Credit Investment Losses (86)   $ 290       208 $ 737        
Other Investments                        
Carrying amount and classification of unconsolidated trusts assets and liabilities                        
Total assets 88,745           88,745   83,400      
Total liabilities 27,289           27,289   20,760      
Maximum exposure to loss $ 88,745           $ 88,745   $ 83,400      
[1] (1)Amounts represent loans for which Huntington has elected the fair value option.