Consolidated Balance Sheets - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,932	$ 2,866
Restricted cash	20	20
Accounts receivable, net of allowance for doubtful accounts: 2020 - $34; 2019 - $34	1,504	1,577
Prepaid and other current assets	239	249
Total current assets	3,695	4,712
Property and equipment, net of accumulated depreciation: 2020 - $623 ; 2019 - $622	309	320
Right of use assets	652	676
Goodwill	3,703	3,575
Other intangible assets, net	1,439	1,424
Other non-current assets	665	641
Total assets	10,463	11,348
Current liabilities:
Accounts payable	203	190
Accrued compensation and contributions to retirement plans	222	446
Income taxes currently payable	160	68
Unearned revenue	1,897	1,928
Other current liabilities	501	461
Total current liabilities	2,983	3,093
Long-term debt	3,949	3,948
Lease liabilities — non-current	603	620
Pension and other postretirement benefits	258	259
Other non-current liabilities	596	624
Total liabilities	8,389	8,544
Redeemable noncontrolling interest (Note 8)	2,268	2,268
Commitments and contingencies (Note 12)
Equity:
Common stock	294	294
Additional paid-in capital	754	903
Retained income	12,691	12,205
Accumulated other comprehensive loss	(660)	(624)
Less: common stock in treasury	(13,329)	(12,299)
Total (deficit) equity — controlling interests	(250)	479
Total equity — noncontrolling interests	56	57
Total (deficit) equity	(194)	536
Total liabilities and (deficit) equity	$ 10,463	$ 11,348