INCOME TAXES - Components of (Provision for) Benefit from Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Provision for Income Taxes [Abstract]
Federal	$ (709)	$ (516)	$ (1,616)
State	(186)	(233)	(19)
Foreign	(1,183)	(929)	(1,144)
Total current provision	(2,078)	(1,678)	(2,779)
Federal	1,661	(8,631)	983
State	139	77	(50)
Foreign	(654)	10,979	(82)
Total deferred benefit	1,146	2,425	851
Total (provision for) benefit from income taxes	$ (932)	$ 747	$ (1,928)
Effective income tax expense (benefit) rate	12.20%	(5.70%)	16.00%