PENSION AND OTHER POST-EMPLOYMENT BENEFIT OBLIGATIONS - Narrative (Details) $ in Millions |
Jun. 30, 2025
USD ($)
|
|---|---|
| Pension | |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |
| Defined benefit plan, expected future employer contributions, current fiscal year | $ 30 |
| OPEB and Other Benefits | |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |
| Defined benefit plan, expected future employer contributions, current fiscal year | $ 14 |