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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 30, 2025
Nov. 30, 2024
Nov. 30, 2025
Nov. 30, 2024
Statement of Comprehensive Income [Abstract]        
Foreign currency translation adjustments, tax (expense)/benefit $ (6) $ 2 $ (2) $ (2)
Amortization of prior service credits and other, tax benefit $ 1 $ 0 $ 2 $ 1