Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,341.5	$ 1,215.8
Short-term investments	499.3	738.0
Accounts receivable, net of allowances	754.0	879.7
Prepaid expenses and other current assets	443.7	376.3
Total current assets	3,038.5	3,209.8
Property and equipment, net	768.6	830.9
Operating lease assets	172.7	169.7
Long-term investments	720.4	589.8
Purchased intangible assets, net	151.9	185.8
Goodwill	3,337.1	3,337.1
Other long-term assets	505.5	514.6
Total assets	8,694.7	8,837.7
Current liabilities:
Accounts payable	269.6	219.5
Accrued compensation	197.0	229.0
Deferred revenue	750.2	812.9
Other accrued liabilities	284.8	282.5
Total current liabilities	1,501.6	1,543.9
Long-term debt	1,714.1	1,683.9
Long-term deferred revenue	383.8	410.5
Long-term income taxes payable	308.6	372.6
Long-term operating lease liabilities	159.2	158.1
Other long-term liabilities	66.6	58.1
Total liabilities	4,133.9	4,227.1
Commitments and contingencies (Note 13)
Stockholders' equity:
Preferred stock, $0.00001 par value; 10.0 shares authorized; none issued and outstanding	0.0	0.0
Common stock, $0.00001 par value; 1,000.0 shares authorized; 329.3 shares and 335.9 shares issued and outstanding as of September 30, 2020 and December 31, 2019, respectively	0.0	0.0
Additional paid-in capital	7,214.8	7,370.5
Accumulated other comprehensive income (loss)	15.2	(18.5)
Accumulated deficit	(2,669.2)	(2,741.4)
Total stockholders' equity	4,560.8	4,610.6
Total liabilities and stockholders' equity	$ 8,694.7	$ 8,837.7