STOCKHOLDER'S EQUITY (Tables)

3 Months Ended

Aug. 31, 2013

Stockholders' Equity [Abstract]

Stock-Based Compensation Expense

	Three Months Ended August 31,
(in millions)	2013		2012
Sales and marketing	$	41	$	37
Software license updates and product support		6		5
Hardware systems products		2		—
Hardware systems support		3		1
Services		7		9
Research and development		97		83
General and administrative		42		41
Acquisition related and other		2		17
Total stock-based compensation	$	200	$	193

Valuation of Stock Options

	Three Months Ended August 31,
	2013		2012
Expected life (in years)		5.1		5.1
Risk-free interest rate		1.4%		0.7%
Volatility		27%		32%
Dividend yield		1.6%		0.8%
Weighted-average fair value per share	$	6.63	$	7.83