STOCKHOLDERS' EQUITY (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Nov. 30, 2012	Nov. 30, 2011	Nov. 30, 2012	Nov. 30, 2011	Dec. 03, 2012	Jun. 18, 2012
Dividends on Common Stock [Abstract]
Dividends per share, declared and paid (in dollars per share)		$ 0.06	$ 0.06	$ 0.12	$ 0.12
Dividends declared per share outstanding common stock (in dollars per share)						$ 0.18
Dividend payable date	Dec. 21, 2012
Dividend record date	Dec. 14, 2012
Stock Repurchases (Narrative) [Abstract]
Approved expansion of stock repurchase program							$ 10,000
Amount available for future repurchases		7,000
Repurchases of common stock (in shares)				200.3	60.6
Repurchased amount				6,100	1,800
Repurchased shares that were not settled (in shares)		4.7
Repurchased amount that was not settled		150
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		192	152	386	298
Stock option grants and assumed stock options				114
Forfeitures and cancellations				10
Weighted Average Input Assumptions Used and Resulting Fair Values [Abstract]
Expected life (in years)		4 years 8 months	4 years 8 months	5 years 1 month	5 years 1 month
Risk-free interest rate		0.60%	0.80%	0.70%	1.70%
Volatility		30.00%	34.00%	31.00%	30.00%
Dividend yield		0.80%	0.80%	0.80%	0.70%
Weighted-average fair value per share		$ 11.66	$ 9.60	$ 7.99	$ 8.80
Sales and marketing [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		43	29	81	55
Software license updates and product support [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		5	5	10	8
Hardware systems products [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		1		1	1
Hardware systems support [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		1	2	2	3
Services [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		8	6	17	10
Research and development [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		89	68	172	139
General and administrative [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		41	40	82	79
Acquisition related and other [Member]
Stock-based Compensation Expense [Line Items]
Total stock-based compensation		$ 4	$ 2	$ 21	$ 3