Condensed Consolidated Statements Of Financial Position - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 1,089.3	$ 2,010.1
Short-term investments	2,477.2	1,764.6
Trade accounts receivable, net of allowances of $33.3 and $36.9, respectively	2,162.2	1,968.7
Unbilled accounts receivable	386.5	324.6
Deferred income tax assets, net	333.5	329.7
Other current assets	322.7	352.6
Total current assets	6,771.4	6,750.3
Property and equipment, net of accumulated depreciation of $957.8 and $852.1, respectively	1,277.3	1,247.2
Goodwill	2,405.3	2,413.6
Intangible assets, net	906.1	953.7
Deferred income tax assets, net	159.8	144.4
Other noncurrent assets	277.7	209.7
Total assets	11,797.6	11,718.9
Liabilities and Stockholders' Equity
Accounts payable	169.0	145.7
Deferred revenue	288.8	224.1
Short-term debt	150.0	700.0
Accrued expenses and other current liabilities	1,348.7	1,522.3
Total current liabilities	1,956.5	2,592.1
Deferred revenue, noncurrent	50.3	81.0
Deferred income tax liabilities, net	233.6	251.7
Long-term debt	912.5	937.5
Other noncurrent liabilities	103.9	116.4
Total liabilities	$ 3,256.8	$ 3,978.7
Commitments and contingencies (See Note 8)
Stockholders' Equity:
Preferred stock, $0.10 par value, 15.0 shares authorized, none issued	$ 0.0	$ 0.0
Class A common stock, $0.01 par value, 1,000.0 shares authorized, 609.5 and 609.4 shares issued and outstanding at June 30, 2015 and December 31, 2014, respectively	6.1	6.1
Additional paid-in capital	520.6	555.6
Retained earnings	8,104.6	7,301.6
Accumulated other comprehensive income (loss)	(90.5)	(123.1)
Total stockholders’ equity	8,540.8	7,740.2
Total liabilities and stockholders’ equity	$ 11,797.6	$ 11,718.9