Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 171,969	$ 253,256
Restricted cash	15,665	10,859
Investments in marketable equity securities and other investments	536,875	514,581
Accounts receivable, net	535,108	582,280
Income taxes receivable	16,490	19,166
Inventories and contracts in progress	120,415	69,477
Other current assets	88,748	82,723
Total Current Assets	1,485,270	1,532,342
Property, Plant and Equipment, Net	327,084	293,085
Lease Right-of-Use Assets	361,603	0
Investments in Affiliates	159,660	143,813
Goodwill, Net	1,335,961	1,297,712
Indefinite-Lived Intangible Assets	126,986	99,052
Amortized Intangible Assets, Net	237,675	263,261
Prepaid Pension Cost	1,024,555	1,003,558
Deferred Income Taxes	12,010	13,388
Deferred Charges and Other Assets	142,146	117,830
Total Assets	5,212,950	4,764,041
Current Liabilities
Accounts payable and accrued liabilities	461,051	486,578
Deferred revenue	241,473	308,728
Income taxes payable	14,673	10,496
Current portion of lease liabilities	80,628	0
Current portion of long-term debt	9,351	6,360
Dividends declared	7,388	0
Total Current Liabilities	814,564	812,162
Accrued Compensation and Related Benefits	178,460	179,652
Other Liabilities	22,907	57,901
Deferred Income Taxes	333,729	322,421
Lease Liabilities	323,466	0
Long-Term Debt	497,094	470,777
Total Liabilities	2,170,220	1,842,913
Redeemable Noncontrolling Interest	3,876	4,346
Preferred Stock	0	0
Common Stockholders’ Equity
Common stock	20,000	20,000
Capital in excess of par value	378,255	378,837
Retained earnings	6,352,787	6,236,125
Accumulated other comprehensive income, net of tax
Cumulative foreign currency translation adjustment	(30,341)	(29,270)
Unrealized gain on pensions and other postretirement plans	230,426	232,836
Cash flow hedges	(61)	263
Cost of Class B common stock held in treasury	(3,918,254)	(3,922,009)
Total Common Stockholders' Equity	3,032,812	2,916,782
Noncontrolling Interest	6,042	0
Total Equity	3,038,854	2,916,782
Total Liabilities and Equity	$ 5,212,950	$ 4,764,041