CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Thousands, unless otherwise specified	Total	Common Shares	Capital in Excess of Par Value	Accumulated Other Comprehensive Income	Retained Earnings	Treasury Shares	Noncontrolling Interest
Balance at Dec. 31, 2011	$ 5,601,217	$ 317	$ 2,287,743	$ 321,264	$ 3,956,364	$ (977,873)	$ 13,042
Balances (in shares) at Dec. 31, 2011		317,042
Increase (Decrease) in Equity
Net income (loss)	133,823				134,090		(267)
Other comprehensive income (loss), net of tax	21,442			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 (in 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
Share-based compensation	4,454		4,454
Other	(2,920)	1	(1,800)				(1,121)
Other (in shares)		717
Balance at Mar. 31, 2012	5,823,180	318	2,322,315	342,463	4,090,454	(944,627)	12,257
Balances (in shares) at Mar. 31, 2012		318,731
Balance at Dec. 31, 2012	5,957,117	319	2,337,244	431,595	4,120,398	(944,627)	12,188
Balances (in shares) at Dec. 31, 2012		318,813
Increase (Decrease) in Equity
Net income (loss)	99,218				99,121		97
Dividends to shareholders ($.04/share)	(12,891)				(12,891)
Other comprehensive income (loss), net of tax	(89,866)			(88,452)			(1,414)
Issuance of common shares for stock options exercised, net of surrender of unexercised stock options	1,027		1,027
Issuance of common shares for stock options exercised, net of surrender of unexercised stock options (in shares)	100	108
Share-based compensation	32,853		32,853
Other	(2,773)	4	(2,777)
Other (in shares)		4,098
Balance at Mar. 31, 2013	$ 5,984,685	$ 323	$ 2,368,347	$ 343,143	$ 4,206,628	$ (944,627)	$ 10,871
Balances (in shares) at Mar. 31, 2013		323,019