Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2022
Current provision
Federal	$ 1,184	$ 579	$ 311
State and local	218	157	120
Foreign	265	209	317
Current Provision, Total	1,667	945	748
Deferred provision
Federal	(82)	369	267
State and local	60	37	21
Foreign	(140)	40	34
Deferred Provision, Total	(162)	446	322
Provision for Income Taxes, Total	$ 1,505	$ 1,391	$ 1,070