Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and equivalents	$ 1,720	$ 2,497
Accounts receivable, net of allowance for doubtful accounts: $38 in 2015 and 2014	1,063	932
Deferred income taxes	203	363
Prepaid and other current assets	227	174
Total current assets	3,213	3,966
Property and equipment, net of accumulated depreciation: 2015 - $582; 2014 - $563	208	206
Goodwill	1,383	1,387
Other intangible assets, net	977	1,004
Other non-current assets	232	208
Total assets	6,013	6,771
Current liabilities:
Accounts payable	181	191
Accrued compensation and contributions to retirement plans	264	410
Unearned revenue	1,387	1,323
Accrued legal and regulatory settlements (Note 11)	23	1,609
Other current liabilities	385	434
Total current liabilities	2,240	3,967
Long-term debt	1,494	799
Pension and other postretirement benefits	285	333
Other non-current liabilities	369	323
Total liabilities	4,388	5,422
Redeemable noncontrolling interest (Note 7)	$ 810	$ 810
Commitments and contingencies (Note 11)
Equity:
Common stock	$ 412	$ 412
Additional paid-in capital	435	493
Retained income	7,438	6,946
Accumulated other comprehensive loss	(511)	(514)
Less: common stock in treasury	(7,011)	(6,849)
Total equity — controlling interests	763	488
Total equity — noncontrolling interests	52	51
Total equity	815	539
Total liabilities and equity	$ 6,013	$ 6,771