CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Unaudited) (USD $) In Thousands	Total	Common Shares	Capital in Excess of Par Value	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Shares	Non-controlling Interest
Beginning Balances at Dec. 31, 2010	$ 5,342,863	$ 315	$ 2,255,787	$ 342,052	$ 3,707,881	$ (977,873)	$ 14,701
Beginning Balances, shares at Dec. 31, 2010		315,034
Net income (loss)	82,825				82,825		(669)
Comprehensive income, net of tax	120,417			37,904			(357)
Issuance of common shares for stock options exercised, net of surrender of unexercised stock options	9,424	1	9,423
Issuance of common shares for stock options exercised, net of surrender of unexercised stock options, shares	800	750
Other	(2,355)		(2,355)
Other, net, shares		651
Share-based compensation	3,945		3,945
Ending Balances at Mar. 31, 2011	5,474,294	316	2,266,800	379,956	3,790,706	(977,873)	14,389
Ending Balances, shares at Mar. 31, 2011		316,435
Beginning Balances at Dec. 31, 2011	5,601,217	317	2,287,743	321,264	3,956,364	(977,873)	13,402
Beginning Balances, shares at Dec. 31, 2011		317,042
Net income (loss)	134,090				134,090		(267)
Comprehensive income, net of tax	155,265			21,199			(243)
Issuance of common shares for stock options exercised, net of surrender of unexercised stock options	(5,320)		(5,320)
Issuance of common shares for stock options exercised, net of surrender of unexercised stock options, shares	1,000	972
Capital contribution from forgiveness of liability, net of tax	62,734		62,734
Issuance of treasury shares, net of tax benefit	7,750		(25,496)			33,246
Other	(2,920)	1	(1,800)				(1,121)
Other, net, shares		717
Share-based compensation	4,454		4,454
Ending Balances at Mar. 31, 2012	$ 5,823,180	$ 318	$ 2,322,315	$ 342,463	$ 4,090,454	$ (944,627)	$ 12,257
Ending Balances, shares at Mar. 31, 2012		318,731