Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,481	$ 2,497
Short-term investments	6	3
Accounts receivable, net of allowance for doubtful accounts: 2015 - $37; 2014 - $38	991	932
Deferred income taxes	109	360
Prepaid and other current assets	206	170
Assets of a business held for sale	503	0
Total current assets	3,296	3,962
Property and equipment:
Buildings and leasehold improvements	352	287
Equipment and furniture	503	482
Total property and equipment	855	769
Less: accumulated depreciation	(585)	(563)
Property and equipment, net	270	206
Goodwill	2,882	1,387
Other intangible assets, net	1,522	1,004
Asset for pension benefits	36	28
Other non-current assets	177	186
Total assets	8,183	6,773
Current liabilities:
Accounts payable	206	191
Accrued compensation and contributions to retirement plans	383	410
Short-term debt	143	0
Income taxes currently payable	56	54
Unearned revenue	1,421	1,254
Accrued legal and regulatory settlements	121	1,609
Other current liabilities	372	402
Liabilities of a business held for sale	206	0
Total current liabilities	2,908	3,920
Long-term debt	3,468	795
Pension and other postretirement benefits	276	333
Deferred income taxes	23	40
Other non-current liabilities	345	336
Total liabilities	7,020	5,424
Redeemable noncontrolling interest	$ 920	$ 810
Commitments and contingencies (Note 12)
Equity:
Common stock, $1 par value: authorized - 600 million shares; issued - 412 million shares in 2015 and 2014	$ 412	$ 412
Additional paid-in capital	475	493
Retained income	7,636	6,946
Accumulated other comprehensive loss	(600)	(514)
Less: common stock in treasury - at cost: 2015 - 146 million shares; 2014 - 140 million shares	(7,729)	(6,849)
Total equity – controlling interests	194	488
Total equity – noncontrolling interests	49	51
Total equity	243	539
Total liabilities and equity	$ 8,183	$ 6,773