Credit Losses - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021	May 31, 2022
Credit Loss [Abstract]
Credit losses	$ 180	$ 94	$ 425	$ 211
Allowance for credit losses	$ 435		$ 435		$ 340