Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 2,579.4	$ 2,284.0
Short-term investments	378.1	561.9
Accounts receivable, net of allowances	597.9	578.3
Deferred tax assets, net	140.4	79.8
Prepaid expenses and other current assets	184.0	199.9
Total current assets	3,879.8	3,703.9
Property and equipment, net	905.7	882.3
Long-term investments	521.2	1,251.9
Restricted cash and investments	71.6	89.5
Purchased intangible assets, net	115.1	106.9
Goodwill	4,071.3	4,057.7
Other long-term assets	158.9	233.8
Total assets	9,723.6	10,326.0
Current liabilities:
Accounts payable	222.2	200.4
Accrued compensation	180.6	273.9
Deferred revenue	772.5	705.8
Other accrued liabilities	271.0	261.3
Total current liabilities	1,446.3	1,441.4
Long-term debt	1,348.9	999.3
Long-term deferred revenue	381.7	363.5
Long-term income taxes payable	121.7	114.4
Other long-term liabilities	115.5	105.2
Total liabilities	3,414.1	3,023.8
Commitments and contingencies (Note 16)
Stockholders' equity:
Convertible preferred stock, $0.00001 par value; 10.0 shares authorized; none issued and outstanding	0	0
Common stock, $0.00001 par value; 1,000.0 shares authorized; 473.4 shares and 495.2 shares issued and outstanding as of March 31, 2014 and December 31, 2013, respectively	0	0
Additional paid-in capital	9,255.4	9,868.9
Accumulated other comprehensive income	1.9	64.6
Accumulated deficit	(2,947.8)	(2,631.3)
Total stockholders' equity	6,309.5	7,302.2
Total liabilities and stockholders' equity	$ 9,723.6	$ 10,326.0