Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality Indicators (Details)

v3.19.3
LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Credit Quality Indicators (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial [1] $ 74,892 $ 74,900
Commercial    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 30,394 30,605
Commercial | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 28,276 28,807
Commercial | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 1,457 1,269
Commercial | OLEM    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 657 518
Commercial | Doubtful    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 4 11
Commercial Real Estate Portfolio Segment [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 6,855 6,842
Commercial Real Estate Portfolio Segment [Member] | Pass    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 6,609 6,586
Commercial Real Estate Portfolio Segment [Member] | Substandard    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 87 74
Commercial Real Estate Portfolio Segment [Member] | OLEM    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 158 181
Commercial Real Estate Portfolio Segment [Member] | Doubtful    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 1 1
Automobile Loan [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 12,292 12,429
Automobile Loan [Member] | Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 12,292 12,429
Automobile Loan [Member] | Consumer | Greater than 750    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 6,257 6,254
Automobile Loan [Member] | Consumer | 650-749    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 4,462 4,520
Automobile Loan [Member] | Consumer | Less Than 650    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 1,328 1,373
Automobile Loan [Member] | Consumer | Other FICO score    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 245 282
Home Equity Loan [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 9,300 9,722
Home Equity Loan [Member] | Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 9,299 9,720
Home Equity Loan [Member] | Consumer | Greater than 750    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 5,847 6,098
Home Equity Loan [Member] | Consumer | 650-749    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 2,815 2,975
Home Equity Loan [Member] | Consumer | Less Than 650    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 592 591
Home Equity Loan [Member] | Consumer | Other FICO score    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 45 56
Residential Loan [Member] | Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 11,168 10,650
Residential Loan [Member] | Consumer | Greater than 750    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 7,633 7,159
Residential Loan [Member] | Consumer | 650-749    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 2,796 2,801
Residential Loan [Member] | Consumer | Less Than 650    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 600 612
Residential Loan [Member] | Consumer | Other FICO score    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 139 78
RV and Marine Finance Loan [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 3,553 3,254
RV and Marine Finance Loan [Member] | Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 3,553 3,254
RV and Marine Finance Loan [Member] | Consumer | Greater than 750    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 2,313 2,074
RV and Marine Finance Loan [Member] | Consumer | 650-749    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 1,027 990
RV and Marine Finance Loan [Member] | Consumer | Less Than 650    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 111 105
RV and Marine Finance Loan [Member] | Consumer | Other FICO score    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 102 85
Other Consumer Loan [Member] | Consumer    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 1,251 1,320
Other Consumer Loan [Member] | Consumer | Greater than 750    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 487 501
Other Consumer Loan [Member] | Consumer | 650-749    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 583 633
Other Consumer Loan [Member] | Consumer | Less Than 650    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial 117 129
Other Consumer Loan [Member] | Consumer | Other FICO score    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Commercial and industrial $ 64 $ 57
[1]
(1)
Amounts represent loans for which Huntington has elected the fair value option. See Note 11 "Fair Values of Assets and Liabilities".