Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 2,411	$ 2,392
Accounts receivable, net of allowance for doubtful accounts: $28 in 2017 and 2016	1,108	1,122
Prepaid and other current assets	144	157
Total current assets	3,663	3,671
Property and equipment, net of accumulated depreciation: 2017 - $523; 2016 - $537	265	271
Goodwill	2,960	2,949
Other intangible assets, net	1,474	1,506
Other non-current assets	292	272
Total assets	8,654	8,669
Current liabilities:
Accounts payable	162	183
Accrued compensation and contributions to retirement plans	205	409
Income taxes currently payable	243	95
Unearned revenue	1,510	1,509
Other current liabilities	349	415
Total current liabilities	2,469	2,611
Long-term debt	3,565	3,564
Pension and other postretirement benefits	271	274
Other non-current liabilities	425	439
Total liabilities	6,730	6,888
Redeemable noncontrolling interest	1,080	1,080
Commitments and contingencies
Equity:
Common stock	412	412
Additional paid-in capital	470	502
Retained income	9,509	9,210
Accumulated other comprehensive loss	(735)	(773)
Less: common stock in treasury	(8,867)	(8,701)
Total equity — controlling interests	789	650
Total equity — noncontrolling interests	55	51
Total equity	844	701
Total liabilities and equity	$ 8,654	$ 8,669