CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Net revenue:
License and other	$ 290.5	$ 350.4	$ 617.2	$ 666.6
Subscription	319.0	286.7	638.8	563.0
Total net revenue	609.5	637.1	1,256.0	1,229.6
Cost of revenue:
Cost of license and other revenue	53.0	53.4	106.1	102.7
Cost of subscription revenue	40.0	34.5	78.7	63.9
Total cost of revenue	93.0	87.9	184.8	166.6
Gross profit	516.5	549.2	1,071.2	1,063.0
Operating expenses:
Marketing and sales	240.8	237.6	494.7	463.0
Research and development	193.1	179.3	387.6	349.8
General and administrative	70.1	71.5	146.0	134.0
Amortization of purchased intangibles	8.2	10.1	17.1	21.0
Restructuring charges, net	0.0	0.8	0.0	3.1
Total operating expenses	512.2	499.3	1,045.4	970.9
Income from operations	4.3	49.9	25.8	92.1
Interest and other expense, net	(3.4)	(7.0)	(3.1)	(13.6)
Income before income taxes	0.9	42.9	22.7	78.5
Provision for income taxes	(236.4)	(11.6)	(239.1)	(18.9)
Net (loss) income	$ (235.5)	$ 31.3	$ (216.4)	$ 59.6
Basic net (loss) income per share (in usd per share)	$ (1.04)	$ 0.14	$ (0.95)	$ 0.26
Diluted net (loss) income per share (in usd per share)	$ (1.04)	$ 0.13	$ (0.95)	$ 0.26
Weighted average shares used in computing basic net (loss) income per share (shares)	227.0	227.3	227.1	227.1
Weighted average shares used in computing diluted net (loss) income per share (shares)	227.0	232.4	227.1	232.4