Condensed Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 853	$ 729
Accounts receivable, net	510	668
Inventories	65	47
Other current assets	81	90
Total current assets	1,509	1,534
Property and equipment, net	148	150
Capitalized software, net	179	173
Goodwill	921	932
Acquired intangible assets, net	173	186
Deferred income taxes	25	29
Other assets	62	62
Total assets	3,017	3,066
Current liabilities
Accounts payable	111	141
Payroll and benefits liabilities	115	158
Deferred revenue	457	375
Other current liabilities	100	132
Total current liabilities	783	806
Long-term debt	271	274
Pension and other postemployment plan liabilities	71	73
Long-term deferred revenue	32	30
Deferred tax liabilities	85	83
Other liabilities	22	21
Total liabilities	1,264	1,287
Commitments and contingencies (Note 7)
Stockholders' equity
Preferred stock: par value $0.01 per share, 100.0 shares authorized, 0.0 shares issued and outstanding at March 31, 2013 and December 31, 2012	0	0
Common stock: par value $0.01 per share, 500.0 shares authorized, 189.9 and 189.5 shares issued at March 31, 2013 and December 31, 2012, respectively	2	2
Paid-in capital	920	898
Treasury stock: 25.4 and 23.8 shares at March 31, 2013 and December 31, 2012, respectively	(901)	(806)
Retained earnings	1,715	1,656
Accumulated other comprehensive income	17	29
Total stockholders' equity	1,753	1,779
Total liabilities and stockholders' equity	$ 3,017	$ 3,066