RELATED-PARTY TRANSACTIONS - Schedule of Expenses Incurred By Holdings From Services Provided By Affiliated Company (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Related Party Transactions [Abstract] | ||||
| Expenses incurred | $ 60 | $ 63 | $ 109 | $ 121 |