v2.4.0.6

Fair Value Disclosures (Tables) | 12 Months Ended
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Dec. 31, 2011
Fair Value Disclosures [Abstract] |
Non-Pension Financial Assets And Liabilities Measured At Fair Value On A Recurring Basis | The following tables present the Company’s non-pension financial assets and liabilities which are measured at fair value on a recurring basis (in millions):
Description | Fair Value as of December 31, 2011 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets |  |  |  |  |  |  |
Money market fund investments (1) | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Investment securities, including mutual funds (2) | 17.7 |  |  | 7.3 |  |  | 10.4 |  |  | — |
Interest rate swaps | 35.8 |  |  | — |  |  | 35.8 |  |  | — |
Foreign currency derivatives | 2.4 |  |  | — |  |  | 2.4 |  |  | — |
Total | $ | 55.9 |  |  | $ | 7.3 |  |  | $ | 48.6 |  |  | $ | — |
Description | Fair Value as of December 31, 2010 |  | Quoted Prices in Active Markets for Identical Assets (Level 1) |  | Significant Other Observable Inputs (Level 2) |  | Significant Unobservable Inputs (Level 3)
Assets |  |  |  |  |  |  |
Money market fund investments (1) | $ | 10.5 |  |  | $ | — |  |  | $ | 10.5 |  |  | $ | — |
Investment securities, including mutual funds (2) | 22.7 |  |  | 7.4 |  |  | 15.3 |  |  | — |
Interest rate swaps | 42.3 |  |  | — |  |  | 42.3 |  |  | — |
Foreign currency derivatives | 2.6 |  |  | — |  |  | 2.6 |  |  | — |
Total | $ | 78.1 |  |  | $ | 7.4 |  |  | $ | 70.7 |  |  | $ | — |
Liabilities |  |  |  |  |  |  |
Foreign currency derivatives | $ | 2.0 |  |  | $ | — |  |  | $ | 2.0 |  |  | $ | — |
Total | $ | 2.0 |  |  | $ | — |  |  | $ | 2.0 |  |  | $ | — |
Fair Value Of Certain Short And Long-Term Debt, Based On Market Prices | The fair values of certain of the Company’s short- and long-term debt are based on quoted market prices and are as follows (in millions):
| 2011 |  | 2010
| Fair Value |  | Book Value |  | Fair Value |  | Book Value
Medium-term notes | $ | 1,679.7 |  |  | $ | 1,632.3 |  |  | $ | 1,650.7 |  |  | $ | 1,623.0 |
Preferred securities underlying the junior convertible subordinated debentures | 356.0 |  |  | 421.2 |  |  | 353.8 |  |  | 421.2 |
Convertible notes | 0.1 |  |  | 0.1 |  |  | 45.5 |  |  | 17.5 |

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- Definition Fair Value of Certain Short and Long-term Debt, Based on Market Prices [Table Text Block] + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Topic 820 -SubTopic 10 -Publisher FASB -Number -Article -Subparagraph -Name Accounting Standards Codification -Paragraph 1 -Section 50 -URI http://asc.fasb.org/extlink&oid=6925170&loc=d3e19190-110258 + Details
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