Quarterly report pursuant to Section 13 or 15(d)

SEGMENT REPORTING (Details)

v3.8.0.1
SEGMENT REPORTING (Details)
$ in Millions
 3 Months Ended
Mar. 31, 2018
USD ($)
reporting_unit
segments
Mar. 31, 2017
USD ($)
Dec. 31, 2017
USD ($)
Segment Reporting Information [Line Items]      
Number of reporting segments | segments 4    
Maximum business banking customer's revenue $ 20    
Net interest income 770 $ 730  
Provision (reduction in allowance) for credit losses (66) (68)  
Noninterest income 314 312  
Noninterest expense 633 707  
Provision (benefit) for income taxes 59 59  
Net income 326 208  
Assets 104,246   $ 104,185
Deposits 79,471   77,041
Operating Segments | Consumer & Business Banking      
Segment Reporting Information [Line Items]      
Net interest income 395 375  
Provision (reduction in allowance) for credit losses (31) (33)  
Noninterest income 174 171  
Noninterest expense 412 413  
Provision (benefit) for income taxes 26 35  
Net income 100 65  
Assets 26,346   26,220
Deposits $ 47,124   45,643
Operating Segments | Commercial Banking      
Segment Reporting Information [Line Items]      
Number of reporting units | reporting_unit 6    
Net interest income $ 220 228  
Provision (reduction in allowance) for credit losses (21) (21)  
Noninterest income 69 64  
Noninterest expense 120 117  
Provision (benefit) for income taxes 31 54  
Net income 117 100  
Assets 32,744   32,118
Deposits 21,838   21,235
Operating Segments | Vehicle Finance [Member]      
Segment Reporting Information [Line Items]      
Net interest income 99 104  
Provision (reduction in allowance) for credit losses (14) (11)  
Noninterest income 3 5  
Noninterest expense 35 36  
Provision (benefit) for income taxes 11 22  
Net income 42 40  
Assets 18,138   17,865
Deposits 345   358
Operating Segments | RBPCG      
Segment Reporting Information [Line Items]      
Net interest income 45 45  
Provision (reduction in allowance) for credit losses 0 (3)  
Noninterest income 51 48  
Noninterest expense 58 63  
Provision (benefit) for income taxes 8 10  
Net income 30 17  
Assets 5,888   5,821
Deposits 6,053   6,057
Treasury / Other      
Segment Reporting Information [Line Items]      
Net interest income 11 (22)  
Provision (reduction in allowance) for credit losses 0 0  
Noninterest income 17 24  
Noninterest expense 8 78  
Provision (benefit) for income taxes (17) (62)  
Net income 37 $ (14)  
Assets 21,130   22,161
Deposits $ 4,111   $ 3,748