Consolidated Balance Sheets - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 3,148	$ 2,866
Restricted cash	20	20
Accounts receivable, net of allowance for doubtful accounts: 2020 - $37; 2019 - $34	1,427	1,577
Prepaid and other current assets	246	249
Total current assets	4,841	4,712
Property and equipment, net of accumulated depreciation: 2020 - $651; 2019 - $622	298	320
Right of use assets	610	676
Goodwill	3,715	3,575
Other intangible assets, net	1,376	1,424
Other non-current assets	612	641
Total assets	11,452	11,348
Current liabilities:
Accounts payable	186	190
Accrued compensation and contributions to retirement plans	392	446
Income taxes currently payable	79	68
Unearned revenue	1,720	1,928
Other current liabilities	438	461
Total current liabilities	2,815	3,093
Long-term debt	4,110	3,948
Lease liabilities — non-current	563	620
Pension and other postretirement benefits	262	259
Other non-current liabilities	693	624
Total liabilities	8,443	8,544
Redeemable noncontrolling interest (Note 8)	2,511	2,268
Commitments and contingencies (Note 12)
Equity:
Common stock	294	294
Additional paid-in capital	917	903
Retained income	13,368	12,205
Accumulated other comprehensive loss	(677)	(624)
Less: common stock in treasury	(13,460)	(12,299)
Total equity — controlling interests	442	479
Total equity — noncontrolling interests	56	57
Total equity	498	536
Total liabilities and equity	$ 11,452	$ 11,348