Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 754,207	$ 772,751
Restricted cash	20,745	24,898
Investments in marketable equity securities and other investments	379,445	226,752
Accounts receivable, net	572,435	571,357
Income taxes receivable	48,383	0
Deferred income taxes	0	934
Inventories and contracts in progress	32,068	11,309
Other current assets	53,439	81,462
Current assets of discontinued operations (includes $1,235 of cash)	0	1,240
Total Current Assets	1,860,722	1,690,703
Property, Plant and Equipment, Net	231,123	860,829
Investments in Affiliates	59,229	19,811
Goodwill, Net	1,017,513	1,348,710
Indefinite-Lived Intangible Assets, Net	21,885	516,753
Amortized Intangible Assets, Net	107,191	96,947
Prepaid Pension Cost	979,970	1,152,488
Deferred Charges and Other Assets	75,318	65,258
Noncurrent assets of discontinued operations	0	820
Total Assets	4,352,951	5,752,319
Current Liabilities
Accounts payable and accrued liabilities	428,014	464,342
Deferred revenue	297,135	410,146
Income taxes payable	0	128,895
Short-term borrowings	0	46,375
Current liabilities of discontinued operations	0	1,034
Total Current Liabilities	725,149	1,050,792
Postretirement Benefits Other Than Pensions	33,947	37,962
Accrued Compensation and Related Benefits	203,280	244,082
Other Liabilities	70,678	91,789
Deferred Income Taxes	403,316	754,960
Long-Term Debt	399,926	399,545
Total Liabilities	$ 1,836,296	$ 2,579,130
Commitments and Contingencies
Redeemable Noncontrolling Interests	$ 25,957	$ 21,904
Redeemable Preferred Stock, Series A, $1 par value, with a redemption and liquidation value of $1,000 per share; 23,000 shares authorized; none and 10,510 shares issued and outstanding	0	10,510
Preferred Stock, $1 par value; 977,000 shares authorized, none issued	0	0
Common Stockholders’ Equity
Capital in excess of par value	356,887	303,789
Retained earnings	5,447,677	6,008,506
Accumulated other comprehensive income, net of taxes
Cumulative foreign currency translation adjustment	(4,849)	8,548
Unrealized gain on available-for-sale securities	58,500	52,130
Unrealized gain on pensions and other postretirement plans	261,029	392,910
Cash flow hedge	0	(108)
Cost of 14,196,146 and 14,201,211 shares of Class B common stock held in treasury	(3,648,546)	(3,645,476)
Total Common Stockholders’ Equity	2,490,698	3,140,299
Noncontrolling Interests	0	476
Total Equity	2,490,698	3,140,775
Total Liabilities and Equity	4,352,951	5,752,319
Class A Common Stock [Member]
Common Stockholders’ Equity
Common stock	964	975
Accumulated other comprehensive income, net of taxes
Total Equity	964	975
Class B Common Stock [Member]
Common Stockholders’ Equity
Common stock	19,036	19,025
Accumulated other comprehensive income, net of taxes
Total Equity	$ 19,036	$ 19,025