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Fair Value Disclosures (Financial Assets And Liabilities Measured At Fair Value) (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended |
--- | --- | ---
Jun. 30, 2012 | Dec. 31, 2011
Deferred compensation plan investments | $ 37.3 | [1] | $ 41.0 | [1]
Derivative financial instruments, Assets | 0 |  | 0.1 |
Derivative financial instruments, Liabilities | 5.9 |  | 16.6 |
Participant Withdrawals From Deferred Compensation Plan Investments | 10.2 |  |  |
Level 1 [Member] |  |  |  |
Deferred compensation plan investments | 37.3 | [1] | 41.0 | [1]
Derivative financial instruments, Assets | 0 |  | 0 |
Derivative financial instruments, Liabilities | 0 |  | 0 |
Level 2 [Member] |  |  |  |
Deferred compensation plan investments | 0 | [1] | 0 | [1]
Derivative financial instruments, Assets | 0 |  | 0.1 |
Derivative financial instruments, Liabilities | 5.9 |  | 16.6 |
Level 3 [Member] |  |  |  |
Deferred compensation plan investments | 0 | [1] | 0 | [1]
Derivative financial instruments, Assets | 0 |  | 0 |
Derivative financial instruments, Liabilities | $ 0 |  | $ 0 |
[1] | (1) The balance at June 30, 2012 also reflects approximately $10.2 million of participant withdrawals from our deferred compensation plan investment during the six months ended June 30, 2012.

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- Definition Carrying amount as of the balance sheet date of assets held under deferred compensation agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
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