Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Assets (Details)

v3.21.2
GOODWILL AND OTHER INTANGIBLE ASSETS - Intangible Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2021
Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets $ 255 $ 191
Finite-Lived Intangible Assets, Gross 497 411
Finite-Lived Intangible Assets, Accumulated Amortization (242) (220)
Core deposit intangible    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets 224 160
Finite-Lived Intangible Assets, Gross 389 310
Finite-Lived Intangible Assets, Accumulated Amortization (165) (150)
Customer Relationships    
Finite-Lived Intangible Assets [Line Items]    
Other intangible assets 31 31
Finite-Lived Intangible Assets, Gross 108 101
Finite-Lived Intangible Assets, Accumulated Amortization $ (77) $ (70)