BENEFIT PLANS (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
May 31, 2026 |
May 31, 2025 |
May 31, 2024 |
|
| Retirement Benefits [Abstract] | |||
| 401(k) employee savings plans, expenses | $ 139 | $ 151 | $ 153 |
| Assets held in rabbi trust | 1,347 | 1,123 | |
| Deferred compensation plan liabilities | $ 1,253 | $ 1,102 | |