Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 1,204.8	$ 2,489.0
Short-term investments	1,040.8	1,070.1
Accounts receivable, net of allowances	635.8	754.6
Prepaid expenses and other current assets	306.1	268.1
Total current assets	3,187.5	4,581.8
Property and equipment, net	848.7	951.7
Operating lease assets	171.9
Long-term investments	581.1	199.0
Purchased intangible assets, net	195.7	118.5
Goodwill	3,338.3	3,108.8
Other long-term assets	430.4	403.5
Total assets	8,753.6	9,363.3
Current liabilities:
Accounts payable	229.0	208.8
Accrued compensation	176.9	221.0
Deferred revenue	741.6	829.3
Short-term portion of long-term debt	0.0	349.9
Other accrued liabilities	275.4	233.5
Total current liabilities	1,422.9	1,842.5
Long-term debt	1,687.6	1,789.1
Long-term deferred revenue	377.1	384.3
Long-term income taxes payable	402.0	404.4
Long-term operating lease liabilities	163.5
Other long-term liabilities	58.1	119.8
Total liabilities	4,111.2	4,540.1
Commitments and contingencies (Note 15)
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; 341.0 shares and 346.4 shares issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	0.0	0.0
Additional paid-in capital	7,501.9	7,672.8
Accumulated other comprehensive loss	(26.8)	(18.2)
Accumulated deficit	(2,832.7)	(2,831.4)
Total stockholders' equity	4,642.4	4,823.2
Total liabilities and stockholders' equity	$ 8,753.6	$ 9,363.3