Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current Assets
Cash and cash equivalents	$ 178,646	$ 200,165
Restricted cash	22,993	13,879
Investments in marketable equity securities and other investments	451,380	599,967
Accounts receivable, net	514,564	624,216
Income taxes receivable	55,812	10,735
Inventories and contracts in progress	117,440	108,928
Prepaid expenses	96,407	92,289
Other current assets	11,783	13,306
Total Current Assets	1,449,025	1,663,485
Property, Plant and Equipment, Net	382,408	384,670
Lease Right-of-Use Assets	486,820	526,417
Investments in Affiliates	167,628	162,249
Goodwill, Net	1,362,191	1,388,279
Indefinite-Lived Intangible Assets	116,172	140,197
Amortized Intangible Assets, Net	235,008	233,481
Prepaid Pension Cost	1,306,843	1,292,350
Deferred Income Taxes	11,062	11,629
Deferred Charges and Other Assets	128,668	128,479
Total Assets	5,645,825	5,931,236
Current Liabilities
Accounts payable and accrued liabilities	433,666	507,701
Deferred revenue	327,830	355,156
Income taxes payable	615	4,121
Current portion of lease liabilities	89,107	92,714
Current portion of long-term debt	78,575	82,179
Dividends declared	7,586	0
Total Current Liabilities	937,379	1,041,871
Accrued Compensation and Related Benefits	179,574	193,836
Other Liabilities	31,430	27,223
Deferred Income Taxes	406,943	427,372
Mandatorily Redeemable Noncontrolling Interest	829	829
Lease Liabilities	440,732	477,004
Long-Term Debt	430,317	430,650
Total Liabilities	2,427,204	2,598,785
Redeemable Noncontrolling Interest	5,781	5,655
Preferred Stock	0	0
Common Stockholders’ Equity
Common stock	20,000	20,000
Capital in excess of par value	383,237	381,669
Retained earnings	6,485,893	6,534,427
Accumulated other comprehensive income, net of tax
Cumulative foreign currency translation adjustment	(59,264)	(21,888)
Unrealized gain on pensions and other postretirement plans	326,571	325,921
Cash flow hedges	(1,955)	(738)
Cost of Class B common stock held in treasury	(3,948,427)	(3,920,152)
Total Common Stockholders' Equity	3,206,055	3,319,239
Noncontrolling Interest	6,785	7,557
Total Equity	3,212,840	3,326,796
Total Liabilities and Equity	$ 5,645,825	$ 5,931,236