REVENUES - Narrative (Details) - USD ($) |
3 Months Ended | |
|---|---|---|
Mar. 31, 2023 |
Mar. 31, 2022 |
|
| Revenue from Contract with Customer [Abstract] | ||
| Securities borrowing and lending, interest revenue | $ 10,000,000 | $ 0 |
| Securities borrowing and lending, interest expenses incurred | $ 2,000,000 | $ 0 |