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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Nov. 30, 2024
Nov. 30, 2023
Nov. 30, 2024
Nov. 30, 2023
Other Comprehensive Income, Tax Amounts        
Foreign currency translation adjustments, tax benefit/(expense) $ 2 $ (3) $ (2) $ 1
Prior service credit arising during period, net of tax (expense)   (11)   (11)
Amortization of prior service credit, tax benefit $ 0 $ 0 $ 1 $ 0