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Other Comprehensive Income Other Comprehensive Income (Tables) | 3 Months Ended
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Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] |
|  |  |  | Pension Adjustments |  |  |  |  |  |
Dollar amounts in millions |  | Foreign currency translation adjustments |  | Actuarial losses |  | Prior service costs |  | Unrealized gain (loss) on investments |  | Other |  | Total
Balance at December 31, 2017 |  | $ | (39.7 | ) |  | $ | (79.5 | ) |  | $ | (4.9 | ) |  | $ | 3.5 |  |  | $ | (1.5 | ) |  | $ | (122.1 | )
Effect of adoption of ASU 2018-02 |  | — |  |  | (17.4 | ) |  | — |  |  | 0.7 |  |  | — |  |  | (16.7 | )
Other comprehensive income before reclassifications |  | 2.3 |  |  | 0.2 |  |  | — |  |  | 0.2 |  |  |  |  | 2.7 |
Income taxes |  | — |  |  | — |  |  | — |  |  |  |  | — |  |  | — |
Net other comprehensive income before reclassifications |  | 2.3 |  |  | 0.2 |  |  | — |  |  | 0.2 |  |  | — |  |  | 2.7 |
Amounts reclassified from accumulated comprehensive income |  | — |  |  | 1.5 |  |  | 0.1 |  |  | — |  |  | — |  |  | 1.6 |
Income taxes |  | — |  |  | (0.4 | ) |  | — |  |  | — |  |  | — |  |  | (0.4 | )
Net amounts reclassified from cumulative other comprehensive income |  | — |  |  | 1.1 |  |  | 0.1 |  |  | — |  |  | — |  |  | 1.2 |
Total other comprehensive income |  | 2.3 |  |  | 1.3 |  |  | 0.1 |  |  | 0.2 |  |  | — |  |  | 3.9 |
Balance at March 31, 2018 |  | $ | (37.4 | ) |  | $ | (95.6 | ) |  | $ | (4.8 | ) |  | $ | 4.4 |  |  | $ | (1.5 | ) |  | $ | (134.9 | )
Other comprehensive income activity, net of tax, is provided in the following table for the quarter ended March 31, 2017:
|  |  |  | Pension Adjustments |  |  |  |  |  |
Dollar amounts in millions |  | Foreign currency translation adjustments |  | Actuarial losses |  | Prior service costs |  | Unrealized gain (loss) on investments |  | Other |  | Total
Balance at December 31, 2016 |  | $ | (46.3 | ) |  | $ | (87.7 | ) |  | $ | (5.2 | ) |  | $ | 2.7 |  |  | $ | (0.7 | ) |  | $ | (137.2 | )
Other comprehensive income (loss) before reclassifications |  | 2.8 |  |  | (0.2 | ) |  | — |  |  | 0.5 |  |  | — |  |  | 3.1 |
Income taxes |  | — |  |  | — |  |  | — |  |  | (0.2 | ) |  | — |  |  | (0.2 | )
Net other comprehensive income (loss) before reclassifications |  | 2.8 |  |  | (0.2 | ) |  | — |  |  | 0.3 |  |  | — |  |  | 2.9 |
Amounts reclassified from accumulated other comprehensive income |  | — |  |  | 1.4 |  |  | 0.3 |  |  | — |  |  | — |  |  | 1.7 |
Income taxes |  | — |  |  | (0.5 | ) |  | (0.1 | ) |  | — |  |  | — |  |  | (0.6 | )
Net amounts reclassified from cumulative other comprehensive income |  | — |  |  | 0.9 |  |  | 0.2 |  |  | — |  |  | — |  |  | 1.1 |
Total other comprehensive income |  | 2.8 |  |  | 0.7 |  |  | 0.2 |  |  | 0.3 |  |  | — |  |  | 4.0 |
Balance at March 31, 2017 |  | $ | (43.5 | ) |  | $ | (87.0 | ) |  | $ | (5.0 | ) |  | $ | 3.0 |  |  | $ | (0.7 | ) |  | $ | (133.2 | )

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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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=84228862&loc=SL7669686-108580 + Details
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