STOCKHOLDERS' EQUITY (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	$ 1,170	$ 1,029	$ 2,176	$ 1,878
Cloud services and license support [Member]
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	158	137	299	248
Hardware [Member]
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	8	6	14	11
Services [Member]
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	53	45	96	78
Sales and marketing [Member]
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	195	174	356	309
Research and development [Member]
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	657	573	1,226	1,057
General and administrative [Member]
Stock-based compensation expense and valuations of stock awards [Abstract]
Total stock-based compensation	$ 99	$ 94	$ 185	$ 175