Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 2,155.6	$ 2,489.0
Short-term investments	1,227.4	1,070.1
Accounts receivable, net of allowances	645.4	754.6
Prepaid expenses and other current assets	281.2	268.1
Total current assets	4,309.6	4,581.8
Property and equipment, net	892.4	951.7
Operating lease assets	184.2
Long-term investments	119.7	199.0
Purchased intangible assets, net	113.5	118.5
Goodwill	3,109.3	3,108.8
Other long-term assets	409.2	403.5
Total assets	9,137.9	9,363.3
Current liabilities:
Accounts payable	219.1	208.8
Accrued compensation	166.8	221.0
Deferred revenue	860.1	829.3
Short-term portion of long-term debt	0.0	349.9
Other accrued liabilities	243.1	233.5
Total current liabilities	1,489.1	1,842.5
Long-term debt	1,789.6	1,789.1
Long-term deferred revenue	370.8	384.3
Long-term income taxes payable	407.3	404.4
Long-term operating lease liabilities	176.7
Other long-term liabilities	53.2	119.8
Total liabilities	4,286.7	4,540.1
Commitments and contingencies (Note 13)
Stockholders' equity:
Convertible 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; 352.0 shares and 346.4 shares issued and outstanding as of March 31, 2019 and December 31, 2018, respectively	0.0	0.0
Additional paid-in capital	7,668.6	7,672.8
Accumulated other comprehensive loss	(10.9)	(18.2)
Accumulated deficit	(2,806.5)	(2,831.4)
Total stockholders' equity	4,851.2	4,823.2
Total liabilities and stockholders' equity	$ 9,137.9	$ 9,363.3