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Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Consolidated Statements Of Shareholders' Equity [Abstract]
Issuance of common stock from exercise of stock options and deferred compensation plans, shares	1,596,145	1,222,274	744,827
Cash dividends declared, per common share	$ 0.68	$ 0.6	$ 0.48
Tax benefit (expense) on change in retirement obligations	$ 4.2	$ 1.7	$ (3.5)
Tax benefit from change on derivatives designated as cash flow hedges	$ 12.5	$ 11.9	$ 0.1

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Issuance of common stock from exercise of stock options and deferred compensation plans, Shares.

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

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



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-Name Accounting Standards Codification

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Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans that is attributable to the parent entity.

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-Number 51

-Paragraph 30

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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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 that is attributable to the parent entity. The change includes an entity's share of an equity investee's increase (decrease) in deferred hedging gains or losses.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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Reference 5: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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