Income Taxes - Schedule of Components of Provision for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2021
Current provision
Federal	$ 579	$ 311	$ 199
State and local	157	120	158
Foreign	209	317	284
Current Provision, Total	945	748	641
Deferred provision
Federal	369	267	667
State and local	37	21	70
Foreign	40	34	65
Deferred Provision, Total	446	322	802
Provision for Income Taxes, Total	$ 1,391	$ 1,070	$ 1,443