Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details)

v3.10.0.1
GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Other Intangible Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]      
Goodwill $ 1,989 $ 1,993 $ 1,993
Total other intangible assets, gross carrying amount 496 515  
Total other intangible assets, accumulated amortization (215) (169)  
Total other intangible assets, net of carrying value 281 346  
Goodwill, Other Increase (Decrease) (5) 0  
Core deposit intangible      
Finite-Lived Intangible Assets [Line Items]      
Total other intangible assets, gross carrying amount 314 325  
Total other intangible assets, accumulated amortization (93) (61)  
Total other intangible assets, net of carrying value 221 264  
Customer relationship      
Finite-Lived Intangible Assets [Line Items]      
Total other intangible assets, gross carrying amount 182 190  
Total other intangible assets, accumulated amortization (122) (108)  
Total other intangible assets, net of carrying value $ 60 $ 82