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INCOME TAXES Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Nov. 30, 2025 | Aug. 31, 2025 | Nov. 30, 2024 | Nov. 30, 2025 | Nov. 30, 2024 | May 31, 2025
Income Tax Disclosure [Abstract] |  |  |  |  |  |
Effective income tax rate | 3.30% |  | 7.10% | 7.20% | 7.30% |
Net deferred tax assets | $ 9,900 |  |  | $ 9,900 |  | $ 10,200
Net tax expense |  | $ 958 |  |  |  |

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