Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - TDRs (Details)

v3.19.3
LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - TDRs (Details)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
USD ($)
contract
Sep. 30, 2018
USD ($)
contract
Sep. 30, 2019
USD ($)
contract
Sep. 30, 2018
USD ($)
contract
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 1,535 1,649 4,157 4,993
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 64 $ 69 $ 195 $ 465
New Troubled Debt Restructuring, Financial effects of modification (1) 1 1 11
Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 2 2 6 6
Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 57 60 175 442
Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 5 7 14 17
Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Commercial | Commercial and Industrial        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 119 131 335 641
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 39 $ 35 $ 114 $ 302
Commercial | Commercial and Industrial | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Commercial | Commercial and Industrial | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 39 35 114 302
Commercial | Commercial and Industrial | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Commercial | Commercial and Industrial | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Commercial | Commercial Real Estate        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 7 9 21 95
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 1 $ 5 $ 12 $ 79
Commercial | Commercial Real Estate | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Commercial | Commercial Real Estate | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 1 5 12 79
Commercial | Commercial Real Estate | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Commercial | Commercial Real Estate | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Consumer | Automobile        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 833 848 2,227 2,088
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 7 $ 7 $ 20 $ 17
Consumer | Automobile | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Consumer | Automobile | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 5 4 14 11
Consumer | Automobile | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 2 3 6 6
Consumer | Automobile | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Consumer | Home Equity        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 76 159 248 472
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 5 $ 11 $ 13 $ 29
Consumer | Home Equity | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Consumer | Home Equity | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 2 8 7 21
Consumer | Home Equity | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 3 3 6 8
Consumer | Home Equity | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Consumer | Residential Mortgage        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 69 76 241 278
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 9 $ 9 $ 28 $ 31
Consumer | Residential Mortgage | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Consumer | Residential Mortgage | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 9 8 27 29
Consumer | Residential Mortgage | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 1 1 2
Consumer | Residential Mortgage | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Consumer | RV and Marine FInance        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 46 40 113 99
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 1 $ 0 $ 2 $ 1
Consumer | RV and Marine FInance | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Consumer | RV and Marine FInance | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 1 0 1 0
Consumer | RV and Marine FInance | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 1 1
Consumer | RV and Marine FInance | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0
Consumer | Other Consumer        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Number of Contracts | contract 385 386 972 1,320
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 2 $ 2 $ 6 $ 6
Consumer | Other Consumer | Interest rate reduction        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 2 2 6 6
Consumer | Other Consumer | Amortization or maturity date change        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Consumer | Other Consumer | Chapter 7 bankruptcy        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance 0 0 0 0
Consumer | Other Consumer | Other        
Financing Receivable, Troubled Debt Restructuring [Line Items]        
New Troubled Debt Restructuring, Post-modification Outstanding Ending Balance $ 0 $ 0 $ 0 $ 0