BORROWINGS - Summary of Changes in the Company's Borrowings (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Supplemental Borrowings [Roll Forward] | ||||
| Net cash flows from financing activities | $ 172 | $ (179) | $ 349 | $ (75) |
| Non-recourse borrowings | ||||
| Supplemental Borrowings [Roll Forward] | ||||
| Beginning balance | 15,264 | |||
| Net cash flows from financing activities | 532 | |||
| Transfer to liabilities directly associated with assets held for sale | (752) | |||
| Other | 376 | 376 | ||
| Ending balance | $ 15,420 | $ 15,420 | ||