Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Current Assets
Cash and cash equivalents	$ 123,469	$ 169,319
Restricted cash	30,777	20,467
Investments in marketable equity securities and other investments	616,379	622,408
Accounts receivable, net	507,514	560,779
Inventories and contracts in progress	246,220	226,811
Prepaid expenses	112,982	97,450
Income taxes receivable	3,335	9,313
Other current assets	1,914	1,547
Total Current Assets	1,642,590	1,708,094
Property, Plant and Equipment, Net	506,995	503,000
Lease Right-of-Use Assets	424,938	429,403
Investments in Affiliates	194,960	186,419
Goodwill, Net	1,567,594	1,560,953
Indefinite-Lived Intangible Assets	180,038	178,934
Amortized Intangible Assets, Net	147,553	161,422
Prepaid Pension Cost	1,671,477	1,658,046
Deferred Income Taxes	6,870	6,812
Deferred Charges and Other Assets (includes $476 and $646 of restricted cash)	199,184	189,132
Total Assets	6,542,199	6,582,215
Current Liabilities
Accounts payable and accrued liabilities	536,959	563,005
Deferred revenue	373,173	381,416
Income taxes payable	15,026	3,766
Current portion of lease liabilities	72,210	70,007
Current portion of long-term debt	123,018	155,813
Dividends declared	7,902	0
Total Current Liabilities	1,128,288	1,174,007
Accrued Compensation and Related Benefits	134,541	134,921
Other Liabilities	37,373	37,506
Deferred Income Taxes	462,109	466,275
Mandatorily Redeemable Noncontrolling Interest	32,309	30,845
Lease Liabilities	387,866	393,626
Long-Term Debt	568,101	570,547
Total Liabilities	2,750,587	2,807,727
Commitments and Contingencies (Note 14)
Redeemable Noncontrolling Interests	21,882	21,827
Preferred Stock	0	0
Common Stockholders’ Equity
Common stock	20,000	20,000
Capital in excess of par value	388,173	390,438
Retained earnings	7,199,588	7,163,128
Accumulated other comprehensive income, net of taxes
Cumulative foreign currency translation adjustment	(45,644)	(54,638)
Unrealized gain on pensions and other postretirement plans	380,898	388,591
Cash flow hedges	1,482	2,198
Cost of Class B common stock held in treasury	(4,197,279)	(4,178,334)
Total Common Stockholders’ Equity	3,747,218	3,731,383
Noncontrolling Interests	22,512	21,278
Total Equity	3,769,730	3,752,661
Total Liabilities and Equity	$ 6,542,199	$ 6,582,215