Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 132,224	$ 145,886
Restricted cash	25,818	12,175
Investments in marketable equity securities and other investments	816,966	824,445
Accounts receivable, net	517,551	607,471
Inventories and contracts in progress	156,678	141,471
Prepaid expenses	101,154	81,741
Income taxes receivable	15,381	32,744
Other current assets	1,237	1,241
Total Current Assets	1,767,009	1,847,174
Property, Plant and Equipment, Net	456,430	468,126
Lease Right-of-Use Assets	438,226	437,969
Investments in Affiliates	172,584	155,444
Goodwill, Net	1,649,646	1,649,582
Indefinite-Lived Intangible Assets	141,077	142,180
Amortized Intangible Assets, Net	231,091	247,120
Prepaid Pension Cost	2,334,773	2,306,514
Deferred Income Taxes	6,720	7,900
Deferred Charges and Other Assets (includes $646 and $782 of restricted cash)	162,580	163,516
Total Assets	7,360,136	7,425,525
Current Liabilities
Accounts payable and accrued liabilities	503,794	583,629
Deferred revenue	346,091	358,720
Income taxes payable	5,610	4,585
Current portion of lease liabilities	74,825	77,655
Current portion of long-term debt	104,824	141,749
Dividends declared	7,748	0
Total Current Liabilities	1,042,892	1,166,338
Accrued Compensation and Related Benefits	163,208	175,391
Other Liabilities	34,629	36,497
Deferred Income Taxes	686,883	676,706
Mandatorily Redeemable Noncontrolling Interest	17,031	13,661
Lease Liabilities	405,119	405,200
Long-Term Debt	523,102	525,752
Total Liabilities	2,872,864	2,999,545
Commitments and Contingencies (Note 14)
Redeemable Noncontrolling Interests	14,331	14,311
Preferred Stock	0	0
Common Stockholders’ Equity
Common stock	20,000	20,000
Capital in excess of par value	391,133	389,456
Retained earnings	7,206,888	7,126,761
Accumulated other comprehensive income, net of taxes
Cumulative foreign currency translation adjustment	(8,036)	(6,298)
Unrealized gain on pensions and other postretirement plans	966,496	979,157
Cash flow hedge	(207)	(1,471)
Cost of Class B common stock held in treasury	(4,116,112)	(4,108,022)
Total Common Stockholders’ Equity	4,460,162	4,399,583
Noncontrolling Interests	12,779	12,086
Total Equity	4,472,941	4,411,669
Total Liabilities and Equity	$ 7,360,136	$ 7,425,525