INCOME TAXES (Details) - USD ($) $ in Billions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Feb. 28, 2022 |
Feb. 28, 2021 |
Feb. 28, 2022 |
Feb. 28, 2021 |
May 31, 2021 |
|
| Income Tax Disclosure [Abstract] | |||||
| Effective tax (benefit) expense rate | 18.40% | (53.30%) | 12.30% | (9.80%) | |
| Total net tax benefit | $ 2.3 | $ 2.3 | |||
| Deferred Tax Assets, Net [Abstract] | |||||
| Net deferred tax assets | $ 6.6 | $ 6.6 | $ 5.8 | ||