CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Net revenue:
License and other	$ 1,390.6	$ 1,357.6	$ 1,172.1
Maintenance	921.6	858.0	779.7
Total net revenue	2,312.2	2,215.6	1,951.8
Cost of revenue:
Cost of license and other revenue	198.1	187.1	162.2
Cost of maintenance revenue	40.4	42.0	34.4
Total cost of revenue	238.5	229.1	196.6
Gross profit	2,073.7	1,986.5	1,755.2
Operating expenses:
Marketing and sales	875.5	842.6	776.0
Research and development	600.0	566.5	496.2
General and administrative	248.4	223.1	200.8
Restructuring (benefits) charges	43.9	(1.3)	10.8
Total operating expenses	1,767.8	1,630.9	1,483.8
Income from operations	305.9	355.6	271.4
Interest and other income, net	4.1	7.3	0.6
Income before income taxes	310.0	362.9	272.0
Provision for income taxes	(62.6)	(77.6)	(60.0)
Net income	$ 247.4	$ 285.3	$ 212.0
Basic net income per share	$ 1.09	$ 1.25	$ 0.93
Diluted net income per share	$ 1.07	$ 1.22	$ 0.90
Weighted average shares used in computing basic net income per share	226.4	227.7	227.6
Weighted average shares used in computing diluted net income per share	231.7	233.3	234.2