REVENUE RECOGNITION - Narrative (Details) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2025
USD ($)
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Revenue recognized, included in beginning contract liability | $ 65 | $ 711 |
| Backlog | $ 8,900 | $ 8,900 |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-07-01 | ||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Percentage of backlog recognized as revenue, next 12 months | 75.00% | 75.00% |
| Expected timing of satisfaction, backlog | 12 months | 12 months |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-10-01 | ||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Expected timing of satisfaction, backlog | 2 years | 2 years |