Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and equivalents	$ 1,531	$ 1,542
Accounts receivable, net of allowance for doubtful accounts: 2014 - $46; 2013 - $52	988	979
Deferred income taxes	110	108
Prepaid and other current assets	235	307
Total current assets	2,864	2,936
Property and equipment, net of accumulated depreciation: 2014 - $629; 2013 - $617	242	249
Goodwill	1,413	1,412
Other intangible assets, net	1,036	1,033
Asset for pension benefits	277	261
Other non-current assets	179	170
Total assets	6,011	6,061
Current liabilities:
Accounts payable	206	219
Accrued compensation and contributions to retirement plans	212	427
Income taxes currently payable	75	15
Unearned revenue	1,310	1,309
Other current liabilities	451	402
Total current liabilities	2,254	2,372
Long-term debt	799	799
Pension and other postretirement benefits	265	264
Other non-current liabilities	476	472
Total liabilities	3,794	3,907
Redeemable noncontrolling interest (Note 7)	810	810
Commitments and contingencies (Note 11)
Equity:
Common stock	412	412
Additional paid-in capital	348	447
Retained income	7,565	7,384
Accumulated other comprehensive loss	(190)	(196)
Less: common stock in treasury	(6,772)	(6,746)
Total equity — controlling interests	1,363	1,301
Total equity — noncontrolling interests	44	43
Total equity	1,407	1,344
Total liabilities and equity	$ 6,011	$ 6,061