CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Net revenue:
License and other	$ 350.4	$ 313.2	$ 666.6	$ 636.7
Subscription	286.7	248.5	563.0	495.4
Total net revenue	637.1	561.7	1,229.6	1,132.1
Cost of revenue:
Cost of license and other revenue	53.4	42.8	102.7	87.2
Cost of subscription revenue	34.5	25.0	63.9	48.1
Total cost of revenue	87.9	67.8	166.6	135.3
Gross profit	549.2	493.9	1,063.0	996.8
Operating expenses:
Marketing and sales	237.6	198.1	463.0	406.9
Research and development	179.3	148.9	349.8	299.7
General and administrative	71.5	52.3	134.0	103.0
Amortization of purchased intangibles	10.1	9.3	21.0	20.1
Restructuring charges, net	0.8	1.7	3.1	2.1
Total operating expenses	499.3	410.3	970.9	831.8
Income from operations	49.9	83.6	92.1	165.0
Interest and other (expense) income, net	(7.0)	(1.8)	(13.6)	(10.6)
Income before income taxes	42.9	81.8	78.5	154.4
Provision for income taxes	(11.6)	(20.1)	(18.9)	(37.1)
Net income	$ 31.3	$ 61.7	$ 59.6	$ 117.3
Basic net income per share (in usd per share)	$ 0.14	$ 0.28	$ 0.26	$ 0.52
Diluted net income per share (in usd per share)	$ 0.13	$ 0.27	$ 0.26	$ 0.51
Weighted average shares used in computing basic net income per share (in shares)	227.3	223.1	227.1	223.6
Weighted average shares used in computing diluted net income per share (in shares)	232.4	228.3	232.4	229.3