Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 4,108	$ 2,866
Restricted cash	14	20
Short-term investments	9	28
Accounts receivable, net of allowance for doubtful accounts: 2020- $30 ; 2019 - $34	1,593	1,577
Prepaid and other current assets	264	221
Total current assets	5,988	4,712
Property and equipment:
Buildings and leasehold improvements	364	420
Equipment and furniture	507	522
Total property and equipment	871	942
Less: accumulated depreciation	(587)	(622)
Property and equipment, net	284	320
Right of use assets	494	676
Goodwill	3,735	3,575
Other intangible assets, net	1,352	1,424
Other non-current assets	684	641
Total assets	12,537	11,348
Current liabilities:
Accounts payable	233	190
Accrued compensation and contributions to retirement plans	551	446
Income taxes currently payable	84	68
Unearned revenue	2,168	1,928
Other current liabilities	551	461
Total current liabilities	3,587	3,093
Long-term debt	4,110	3,948
Lease liabilities – non-current	544	620
Pension and other postretirement benefits	291	259
Other non-current liabilities	653	624
Total liabilities	9,185	8,544
Redeemable noncontrolling interest	2,781	2,268
Commitments and contingencies (Note 13)
Equity:
Common stock, $1 par value: authorized - 600 million shares; issued: 2020 - 294 million shares; 2019 - 294 million shares	294	294
Additional paid-in capital	946	903
Retained income	13,367	12,205
Accumulated other comprehensive loss	(637)	(624)
Less: common stock in treasury - at cost: 2020 - 53 million shares; 2019 - 50 shares	(13,461)	(12,299)
Total equity – controlling interests	509	479
Total equity – noncontrolling interests	62	57
Total equity	571	536
Total liabilities and equity	$ 12,537	$ 11,348