Quarterly report pursuant to Section 13 or 15(d)

LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details)

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LOANS / LEASES AND ALLOWANCE FOR CREDIT LOSSES - Allowance for Credit Losses (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Portion of ALLL balance:        
ALLL balance, beginning of period $ 741 $ 668 $ 691 $ 638
Loan charge-offs (58) (65) (184) (192)
Allowance for Loan and Lease Loss, Recovery of Bad Debts 29 22 89 74
Provision for Loan and Lease Losses 53 43 175 136
Provision For (Reduction In Allowance) Loan and Lease Losses. 49 50 165 155
ALLL balance, end of period 761 675 761 675
AULC Balance, beginning of period 93 85 87 98
Provision (reduction in allowance) for unfunded loan commitments and letters of credit 4 (6) 10 (19)
AULC Balance, end of period 97 79 97 79
ACL balance, end of period 858 754 858 754
Commercial        
Portion of ALLL balance:        
ALLL balance, beginning of period 531 475 482 451
Loan charge-offs (11) (19) (46) (58)
Allowance for Loan and Lease Loss, Recovery of Bad Debts 15 10 45 34
Provision for Loan and Lease Losses   8    
Provision For (Reduction In Allowance) Loan and Lease Losses. 8   62 47
ALLL balance, end of period 543 474 543 474
AULC Balance, beginning of period 90 82 84 87
Provision (reduction in allowance) for unfunded loan commitments and letters of credit 5 (6) 11 (11)
AULC Balance, end of period 95 76 95 76
ACL balance, end of period 638 550 638 550
Consumer        
Portion of ALLL balance:        
ALLL balance, beginning of period 210 193 209 187
Loan charge-offs (47) (46) (138) (134)
Allowance for Loan and Lease Loss, Recovery of Bad Debts 14 12 44 40
Provision for Loan and Lease Losses   42    
Provision For (Reduction In Allowance) Loan and Lease Losses. 41   103 108
ALLL balance, end of period 218 201 218 201
AULC Balance, beginning of period 3 3 3 11
Provision (reduction in allowance) for unfunded loan commitments and letters of credit (1) 0 (1) (8)
AULC Balance, end of period 2 3 2 3
ACL balance, end of period $ 220 $ 204 $ 220 $ 204