REVENUE RECOGNITION - Narrative (Details) $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
|
Mar. 31, 2026
USD ($)
|
Mar. 31, 2026
USD ($)
|
|
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Revenue recognized, included in beginning contract liability | $ 162 | $ 590 |
| Backlog | $ 9,500 | $ 9,500 |
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01 | ||
| 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]: 2026-10-01 | ||
| Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] | ||
| Expected timing of satisfaction, backlog | 2 years | 2 years |