OTHER OPERATING EXPENSE, NET - Schedule of Other Operating Expense, Net (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
|
| Other Income and Expenses [Abstract] | ||||
| Merger and acquisition expense | $ 2 | $ 4 | $ 5 | $ 9 |
| Separation-related costs | 2 | 53 | 3 | 43 |
| Losses (gains) for other one-time events | 1 | (2) | 1 | (2) |
| Other operating (income) expense, net | (1) | 2 | (4) | (1) |
| Other operating expense, net | $ 4 | $ 57 | $ 5 | $ 49 |