STOCKHOLDER'S EQUITY (Tables)

6 Months Ended

Nov. 30, 2014

Stockholders' Equity [Abstract]

Valuation of Stock Options

	Three Months Ended November 30,				Six Months Ended November 30,
	2014		2013		2014		2013
Expected life (in years)		4.9		4.7		5.1		5.1
Risk-free interest rate		1.7%		1.3%		1.7%		1.4%
Volatility		23%		24%		23%		27%
Dividend yield		1.2%		1.5%		1.2%		1.6%
Weighted-average fair value per share	$	10.94	$	6.28	$	8.97	$	6.62

Stock-Based Compensation Expense

	Three Months Ended				Six Months Ended  November 30,
	November 30,
(in millions)	2014		2013		2014		2013
Sales and marketing	$	43	$	37	$	86	$	77
Cloud software-as-a-service and platform-as-a-service		3		2		5		4
Cloud infrastructure-as-a-service		1		1		2		2
Software license updates and product support		4		5		9		11
Hardware systems products		1		1		3		3
Hardware systems support		2		1		3		3
Services		9		6		14		11
Research and development		134		87		242		184
General and administrative		43		42		87		83
Acquisition related and other		1		1		4		4
Total stock-based compensation	$	241	$	183	$	455	$	382