Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
Statement of Comprehensive Income [Abstract]
NET INCOME	$ 771	$ 1,112	$ 2,434	$ 3,268
OTHER COMPREHENSIVE INCOME (LOSS):
Foreign currency translation adjustments, net of tax (expense)/benefit of ($5) and $22 in 2023 and ($3) and $1 in 2022	80	91	(199)	(150)
Amortization of prior service credit, net of tax benefit of $0 and $1 in 2023 and $1 and $2 in 2022	(3)	(1)	(6)	(5)
Other comprehensive income (loss)	77	90	(205)	(155)
COMPREHENSIVE INCOME	$ 848	$ 1,202	$ 2,229	$ 3,113