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Accumulated Other Comprehensive Income (Loss) (Tables) | 3 Months Ended
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Mar. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  | Three Months Ended March 31, |
|  | 2013 |  |  | 2012 |
Beginning balance |  | $ | (291.9 | ) |  | $ | (262.5 | )
Amortization of actuarial (gains) losses, net (a) |  | $ | 6.8 |  |  | $ | 6.0 |
Amortization of prior service costs (a) |  |  | 0.2 |  |  |  | 0.4 |
Total reclassifications for the period, before tax |  |  | 7.0 |  |  |  | 6.4 |
Income tax (expense) benefit |  |  | (2.6 | ) |  |  | (2.3 | )
Amounts reclassified from accumulated other comprehensive income (loss), net of tax |  |  | 4.4 |  |  |  | 4.1 |
Ending balance |  | $ | (287.5 | ) |  | $ | (258.4 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=20435746&loc=SL7669686-108580 + Details
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