Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current Assets
Cash and cash equivalents	$ 288,593	$ 390,014
Restricted cash	14,148	17,552
Investments in marketable equity securities and other investments	474,110	557,153
Accounts receivable, net	563,580	620,319
Income taxes receivable	0	23,901
Inventories and contracts in progress	76,005	60,612
Other current assets	78,721	66,253
Total Current Assets	1,495,157	1,735,804
Property, Plant and Equipment, Net	265,502	259,358
Investments in Affiliates	133,550	128,590
Goodwill, Net	1,280,357	1,299,710
Indefinite-Lived Intangible Assets	100,444	102,195
Amortized Intangible Assets, Net	236,597	237,976
Prepaid Pension Cost	1,090,509	1,056,777
Deferred Income Taxes	15,367	15,367
Deferred Charges and Other Assets	113,450	102,046
Total Assets	4,730,933	4,937,823
Current Liabilities
Accounts payable and accrued liabilities	457,300	526,323
Deferred revenue	248,437	339,454
Income taxes payable	10,463	6,109
Mandatorily redeemable noncontrolling interest	16,500	0
Current portion of long-term debt	6,553	6,726
Dividends declared	7,134	0
Total Current Liabilities	746,387	878,612
Postretirement Benefits Other Than Pensions	21,359	20,865
Accrued Compensation and Related Benefits	178,571	193,024
Other Liabilities	60,716	65,977
Deferred Income Taxes	362,986	362,701
Mandatorily Redeemable Noncontrolling Interest	0	10,331
Long-Term Debt	478,774	486,561
Total Liabilities	1,848,793	2,018,071
Redeemable Noncontrolling Interest	4,750	4,607
Preferred Stock	0	0
Common Stockholders’ Equity
Common stock	20,000	20,000
Capital in excess of par value	374,502	370,700
Retained earnings	6,061,932	5,791,724
Accumulated other comprehensive income (loss), net of tax
Cumulative foreign currency translation adjustment	(13,289)	6,314
Unrealized gain on available-for-sale securities	0	194,889
Unrealized gain on pensions and other postretirement plans	331,238	334,536
Cash Flow Hedge	308	(184)
Cost of Class B common stock held in treasury	(3,897,301)	(3,802,834)
Total Equity	2,877,390	2,915,145
Total Liabilities and Equity	$ 4,730,933	$ 4,937,823