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Supplemental Cash Flow Information - Supplemental Cash Flow (Details) - USD ($)
$ in Millions
9 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Supplemental Cash Flow Information [Abstract]    
Interest (net of capitalized interest) $ 497 $ 496
Income taxes 823 628
Income tax refunds received (50) (180)
Cash tax payments, net $ 773 $ 448