Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Net revenues:
Total net revenues		$ 5,564.5		$ 5,301.2		$ 4,735.4
Cost of revenues:
Total cost of revenues		2,362.6		2,342.9		1,995.3
Gross margin		3,201.9		2,958.3		2,740.1
Operating expenses:
Research and development		1,144.4		1,036.1		1,007.2
Sales and marketing		1,233.9		1,133.4		1,052.7
General and administrative		255.5		249.5		249.8
Restructuring charges		98.0		20.2		42.9
Total operating expenses		2,731.8		2,439.2		2,352.6
Operating income		470.1		519.1		387.5
Gain (loss) on privately-held investments, net	[1]	(97.3)	[2]	20.4	[3]	12.7	[2]
Gain on divestiture		0.0		45.8		0.0
Loss on extinguishment of debt		0.0		0.0		(60.6)
Other expense, net	[2]	(23.8)		(49.0)		(29.5)
Income before income taxes and loss from equity method investment		349.0		536.3		310.1
Income tax provision		29.2		60.5		57.4
Loss from equity method investment, net of tax		9.6		4.8		0.0
Net income		$ 310.2		$ 471.0		$ 252.7
Net income per share:
Net income per share, basic (in dollars per share)		$ 0.97		$ 1.46		$ 0.78
Net income per share, diluted (in dollars per share)		$ 0.95		$ 1.43		$ 0.76
Shares used in computing net income per share:
Shares used in computing net income per share, basic (in shares)		320.0		322.1		324.4
Shares used in computing net income per share, diluted (in shares)		325.9		329.5		331.6
Product
Net revenues:
Total net revenues		$ 3,632.5		$ 3,539.9		$ 3,078.1
Cost of revenues:
Total cost of revenues		1,781.6		1,761.7		1,409.4
Service
Net revenues:
Total net revenues		1,932.0		1,761.3		1,657.3
Cost of revenues:
Total cost of revenues		$ 581.0		$ 581.2		$ 585.9

[1] Privately-held investments represent investments in privately-held debt, redeemable preferred stock securities, and equity investments without readily determinable fair value. Refer to Note 2, Cash Equivalents and Investments.

[2] The prior period amounts have been reclassified to conform to the current period presentation.

[3] The prior period amounts have been reclassified to conform to the current period presentation.