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 |