CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Net revenue:
Total net revenue	$ 4,386.4	$ 3,790.4	$ 3,274.3
Cost of revenue:
Amortization of developed technologies	52.8	30.9	34.5
Total cost of revenue	418.5	337.1	324.9
Gross profit	3,967.9	3,453.3	2,949.4
Operating expenses:
Marketing and sales	1,623.1	1,440.3	1,310.3
Research and development	1,114.8	932.5	851.1
General and administrative	571.7	413.9	405.6
Amortization of purchased intangibles	40.7	37.5	38.9
Restructuring and other exit costs, net	0.0	0.0	0.5
Total operating expenses	3,350.3	2,824.2	2,606.4
Income from operations	617.6	629.1	343.0
Interest and other expense, net	(52.9)	(82.4)	(48.2)
Income before income taxes	564.7	546.7	294.8
(Provision) benefit for income taxes	(67.7)	661.5	(80.3)
Net income	$ 497.0	$ 1,208.2	$ 214.5
Basic net income per share (in dollars per share)	$ 2.26	$ 5.51	$ 0.98
Diluted net income per share (in dollars per share)	$ 2.24	$ 5.44	$ 0.96
Weighted average shares used in computing basic net income per share (in shares)	219.7	219.4	219.7
Weighted average shares used in computing diluted net income per share (in shares)	222.0	222.1	222.5
Subscription and Maintenance
Net revenue:
Total net revenue	$ 4,232.7	$ 3,662.2	$ 3,138.5
Cost of revenue:
Cost of revenue	299.1	242.1	223.9
Subscription
Net revenue:
Total net revenue	4,156.4	3,478.9	2,751.9
Maintenance
Net revenue:
Total net revenue	76.3	183.3	386.6
Other
Net revenue:
Total net revenue	153.7	128.2	135.8
Cost of revenue:
Cost of revenue	$ 66.6	$ 64.1	$ 66.5