STOCKHOLDERS' EQUITY (Tables)

9 Months Ended

Feb. 29, 2020

Stockholders Equity Note [Abstract]

Stock-Based Compensation Expense

	Three Months Ended				Nine Months Ended
(in millions)	February 29, 2020		February 28, 2019		February 29, 2020		February 28, 2019
Cloud services and license support	$	22	$	26	$	83	$	74
Hardware		3		2		8		7
Services		14		12		42		37
Sales and marketing		67		89		192		278
Research and development		238		254		781		732
General and administrative		17		44		98		131
Total stock-based compensation	$	361	$	427	$	1,204	$	1,259