Consolidated Statements of Changes in Equity (Parenthetical) (USD $) In Thousands, except Per Share data	12 Months Ended
Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Dividends per share	$ 1.36	$ 1.36	$ 1.34
Tax effect on financial instruments marked to market	$ 1,188	$ 8,028	$ (12,896)
Tax effect on pension liability adjustment	(582)	967	(36,557)
Tax effect on convertible debt discount	29,532
Tax effect on call options	(32,293)
Tax effect on cumulative translation adjustment	(1,910)	1,385	(5,140)
Additional Paid in Capital
Tax effect on convertible debt discount	29,532
Tax effect on call options	(32,293)
Retained Earnings
Dividends per share	$ 1.36	$ 1.36	$ 1.34
Accumulated Other Comprehensive Income (loss)
Tax effect on financial instruments marked to market	1,188	8,028	(12,896)
Tax effect on pension liability adjustment	(582)	967	(36,557)
Tax effect on cumulative translation adjustment	(1,910)	1,385	(5,140)
Noncontrolling Interest
Tax effect on cumulative translation adjustment	(1,910)	1,385	(5,140)
Comprehensive Income (loss)
Tax effect on financial instruments marked to market	1,188	8,028	(12,896)
Tax effect on pension liability adjustment	(582)	967	(36,557)
Tax effect on cumulative translation adjustment	$ (1,910)	$ 1,385	$ (5,140)

Tax Effect on Call Options

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- Definition

Tax effect on Convertible Debt Discount.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

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- Definition

Tax effects of the net changes to accumulated comprehensive income during the period related to benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 25

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- Definition

Total tax effect of the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges after taxes. The change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.

+ References

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- Definition

Tax effect of the adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into functional currency of the reporting entity.

+ References

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