Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - NALs Past Due (Details)

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - NALs Past Due (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due $ 695,588 $ 718,203
Current 67,184,259 66,059,094
Purchased Credit Impaired 75,722 102,380
Consumer loans 103,741 82,319
Loans and leases [1] 68,059,310 66,961,996
90 or more days past due and accruing 136,360 129,362
30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 301,055 320,341
60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 96,081 108,443
90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 298,452 289,419
Commercial | Commercial and Industrial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 143,013 136,362
Current 27,771,196 27,854,012
Purchased Credit Impaired 54,942 68,338
Consumer loans 0 0
Loans and leases 27,969,151 28,058,712
90 or more days past due and accruing 21,501 18,148
Commercial | Commercial and Industrial | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 44,796 42,052
Commercial | Commercial and Industrial | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 13,608 20,136
Commercial | Commercial and Industrial | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 84,609 74,174
Commercial | Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 38,614 54,048
Current 7,085,757 7,212,811
Purchased Credit Impaired 20,780 34,042
Consumer loans 0 0
Loans and leases 7,145,151 7,300,901
90 or more days past due and accruing 17,040 17,215
Commercial | Commercial Real Estate | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 7,382 21,187
Commercial | Commercial Real Estate | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 3,918 3,202
Commercial | Commercial Real Estate | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 27,314 29,659
Consumer | Automobile    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 92,557 103,913
Current 11,461,169 10,862,715
Purchased Credit Impaired 0 0
Consumer loans 1,411 2,154
Loans and leases 11,555,137 10,968,782
90 or more days past due and accruing 8,594 10,182
Consumer | Automobile | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 68,600 76,283
Consumer | Automobile | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 15,241 17,188
Consumer | Automobile | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 8,716 10,442
Consumer | Home Equity    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 122,135 115,804
Current 9,840,922 9,986,697
Purchased Credit Impaired 0 0
Consumer loans 2,477 3,273
Loans and leases 9,965,534 10,105,774
90 or more days past due and accruing 18,459 11,508
Consumer | Home Equity | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 44,513 38,899
Consumer | Home Equity | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 16,463 23,903
Consumer | Home Equity | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 61,159 53,002
Consumer | Residential Mortgage    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 268,948 276,611
Current 7,869,927 7,373,414
Purchased Credit Impaired 0 0
Consumer loans 98,422 74,936
Loans and leases 8,237,297 7,724,961
90 or more days past due and accruing 65,159 66,952
Consumer | Residential Mortgage | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 117,779 122,469
Consumer | Residential Mortgage | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 40,327 37,460
Consumer | Residential Mortgage | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 110,842 116,682
Consumer | RV and Marine FInance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 13,181 13,805
Current 2,163,346 1,831,123
Purchased Credit Impaired 0 0
Consumer loans 1,205 1,519
Loans and leases 2,177,732 1,846,447
90 or more days past due and accruing 2,464 1,462
Consumer | RV and Marine FInance | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 8,072 10,009
Consumer | RV and Marine FInance | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 2,443 2,230
Consumer | RV and Marine FInance | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 2,666 1,566
Consumer | Other Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 17,140 17,660
Current 991,942 938,322
Purchased Credit Impaired 0 0
Consumer loans 226 437
Loans and leases 1,009,308 956,419
90 or more days past due and accruing 3,143 3,895
Consumer | Other Consumer | 30-59 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 9,913 9,442
Consumer | Other Consumer | 60-89 Days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due 4,081 4,324
Consumer | Other Consumer | 90 or more days    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Past Due $ 3,146 $ 3,894
[1] Amounts represent loans for which Huntington has elected the fair value option.