SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Charges in Allowance for Credit Losses (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
May 31, 2026 |
May 31, 2025 |
May 31, 2024 |
|
| Allowance for Credit Losses | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance At Beginning of Year | $ 12 | $ 8 | $ 8 |
| Repurchases of previously factored accounts receivable | 96 | 0 | 0 |
| Current period provision for expected credit losses | 91 | 19 | 11 |
| Write-offs charged against allowance | (62) | (15) | (11) |
| Recoveries collected | 3 | 0 | 0 |
| Balance At End of Year | 140 | 12 | 8 |
| Allowance for Revenue Adjustments | |||
| SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] | |||
| Balance At Beginning of Year | 2 | 3 | 3 |
| Repurchases of previously factored accounts receivable | 63 | 0 | 0 |
| Current period provision for expected credit losses | 101 | 8 | 11 |
| Write-offs charged against allowance | (102) | (9) | (11) |
| Balance At End of Year | $ 64 | $ 2 | $ 3 |