CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 213,256	$ 177,175
Adjustments to reconcile net earnings to cash provided (utilized) by operating activities:
Depreciation of fixed assets	54,626	51,755
Amortization of intangibles	313	401
Restricted stock and stock option amortization	9,638	8,746
Deferred compensation trust	(15,688)	(22,073)
Deferred compensation obligation	18,093	24,988
Deferred taxes	17,424	4,630
Excess tax benefit from stock-based plans	(2,747)	(3,444)
Retirement plan accrual, net of contributions	(4,394)	190
Changes in operating assets and liabilities	(310,794)	(287,005)
Undistributed earnings of equity method investments	(4,879)	(7,857)
Other items	3,428	5,416
Cash utilized by operating activities	(21,724)	(47,078)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchases of marketable securities	(132,700)	(331,492)
Proceeds from the sales and maturities of marketable securities	107,632	198,317
Capital expenditures	(56,906)	(54,319)
Proceeds from disposal of property, plant and equipment	15,702	37,248
Investments in partnerships and joint ventures	(7,414)	(389)
Consolidation of a variable interest entity	24,675
Acquisitions	(7,674)
Other items	4,346	(1,575)
Cash utilized by investing activities	(52,339)	(152,210)
CASH FLOWS FROM FINANCING ACTIVITIES
Repurchase of common stock		(27,482)
Dividends paid		(21,388)
Repayment of 5.625% Municipal Bonds	(17,795)
Repayment of convertible debt and notes payable	(8,566)	(301)
Distributions paid to noncontrolling interests	(17,942)	(19,767)
Capital contributions by noncontrolling interests	202	1,400
Taxes paid on vested restricted stock	(10,357)	(10,903)
Stock options exercised	5,807	5,002
Excess tax benefit from stock-based plans	2,747	3,444
Other items	2,800	5,810
Cash utilized by financing activities	(43,104)	(64,185)
Effect of exchange rate changes on cash	(22,574)	24,348
Decrease in cash and cash equivalents	(139,741)	(239,125)
Cash and cash equivalents at beginning of period	2,154,541	2,161,411
Cash and cash equivalents at end of period	$ 2,014,800	$ 1,922,286