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Other Comprehensive Income Other Comprehensive Income (Tables) | 9 Months Ended
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Sep. 30, 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 June 30, 2018 |  | $ | (51.2 | ) |  | $ | (94.3 | ) |  | $ | (4.7 | ) |  | $ | 4.3 |  |  | $ | (1.4 | ) |  | $ | (147.3 | )
Other comprehensive income (loss) before reclassifications |  | (2.0 | ) |  | (0.1 | ) |  | — |  |  | 0.2 |  |  | — |  |  | (1.9 | )
Income taxes |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Net other comprehensive income (loss) before reclassifications |  | (2.0 | ) |  | (0.1 | ) |  | — |  |  | 0.2 |  |  | — |  |  | (1.9 | )
Amounts reclassified from accumulated comprehensive income (loss) |  | — |  |  | 1.5 |  |  | 0.1 |  |  | — |  |  | — |  |  | 1.6 |
Income taxes |  | — |  |  | (0.4 | ) |  | — |  |  | — |  |  | — |  |  | (0.4 | )
Net amounts reclassified from cumulative other comprehensive income (loss) |  | — |  |  | 1.1 |  |  | 0.1 |  |  | — |  |  | — |  |  | 1.2 |
Total other comprehensive income (loss) |  | (2.0 | ) |  | 1.0 |  |  | 0.1 |  |  | 0.2 |  |  | — |  |  | (0.7 | )
Balance at September 30, 2018 |  | $ | (53.2 | ) |  | $ | (93.3 | ) |  | $ | (4.6 | ) |  | $ | 4.5 |  |  | $ | (1.4 | ) |  | $ | (148.0 | )
|  |  |  | 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 (loss) before reclassifications |  | (13.5 | ) |  | 0.2 |  |  | — |  |  | 0.4 |  |  | — |  |  | (12.9 | )
Income taxes |  | — |  |  | — |  |  | — |  |  | (0.1 | ) |  | — |  |  | (0.1 | )
Net other comprehensive income (loss) before reclassifications |  | (13.5 | ) |  | 0.2 |  |  | — |  |  | 0.3 |  |  | — |  |  | (13.0 | )
Amounts reclassified from accumulated comprehensive income (loss) |  | — |  |  | 4.6 |  |  | 0.4 |  |  | — |  |  | 0.1 |  |  | 5.1 |
Income taxes |  | — |  |  | (1.2 | ) |  | (0.1 | ) |  | — |  |  | — |  |  | (1.3 | )
Net amounts reclassified from cumulative other comprehensive income (loss) |  | — |  |  | 3.4 |  |  | 0.3 |  |  | — |  |  | 0.1 |  |  | 3.8 |
Total other comprehensive income (loss) |  | (13.5 | ) |  | 3.6 |  |  | 0.3 |  |  | 0.3 |  |  | 0.1 |  |  | (9.2 | )
Balance at September 30, 2018 |  | $ | (53.2 | ) |  | $ | (93.3 | ) |  | $ | (4.6 | ) |  | $ | 4.5 |  |  | $ | (1.4 | ) |  | $ | (148.0 | )
Other comprehensive income activity, net of tax, is provided in the following table for the quarter and nine months ended September 30, 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 June 30, 2017 |  | $ | (52.0 | ) |  | $ | (86.4 | ) |  | $ | (4.8 | ) |  | $ | 3.1 |  |  | $ | (0.7 | ) |  | $ | (140.8 | )
Other comprehensive income (loss) before reclassifications |  | 10.4 |  |  | (0.4 | ) |  | — |  |  | 0.7 |  |  | (0.2 | ) |  | 10.5 |
Income taxes |  | — |  |  | — |  |  | — |  |  | (0.3 | ) |  | — |  |  | (0.3 | )
Net other comprehensive income (loss) before reclassifications |  | 10.4 |  |  | (0.4 | ) |  | — |  |  | 0.4 |  |  | (0.2 | ) |  | 10.2 |
Amounts reclassified from accumulated other comprehensive income (loss) |  | — |  |  | 1.4 |  |  | 0.3 |  |  | — |  |  | 0.1 |  |  | 1.8 |
Income taxes |  | — |  |  | (0.5 | ) |  | (0.1 | ) |  | — |  |  | — |  |  | (0.6 | )
Net amounts reclassified from cumulative other comprehensive income (loss) |  | — |  |  | 0.9 |  |  | 0.2 |  |  | — |  |  | 0.1 |  |  | 1.2 |
Total other comprehensive income (loss) |  | 10.4 |  |  | 0.5 |  |  | 0.2 |  |  | 0.4 |  |  | (0.1 | ) |  | 11.4 |
Balance at September 30, 2017 |  | $ | (41.6 | ) |  | $ | (85.9 | ) |  | $ | (4.6 | ) |  | $ | 3.5 |  |  | $ | (0.8 | ) |  | $ | (129.4 | )
|  |  |  | 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 |  | 4.7 |  |  | (0.8 | ) |  | — |  |  | 1.3 |  |  | (0.2 | ) |  | 5.0 |
Income taxes |  | — |  |  | — |  |  | — |  |  | (0.5 | ) |  | — |  |  | (0.5 | )
Net other comprehensive income (loss) before reclassifications |  | 4.7 |  |  | (0.8 | ) |  | — |  |  | 0.8 |  |  | (0.2 | ) |  | 4.5 |
Amounts reclassified from accumulated other comprehensive income (loss) |  | — |  |  | 4.2 |  |  | 0.9 |  |  | — |  |  | 0.1 |  |  | 5.2 |
Income taxes |  | — |  |  | (1.6 | ) |  | (0.3 | ) |  | — |  |  | — |  |  | (1.9 | )
Net amounts reclassified from cumulative other comprehensive income (loss) |  | — |  |  | 2.6 |  |  | 0.6 |  |  | — |  |  | 0.1 |  |  | 3.3 |
Total other comprehensive income (loss) |  | 4.7 |  |  | 1.8 |  |  | 0.6 |  |  | 0.8 |  |  | (0.1 | ) |  | 7.8 |
Balance at September 30, 2017 |  | $ | (41.6 | ) |  | $ | (85.9 | ) |  | $ | (4.6 | ) |  | $ | 3.5 |  |  | $ | (0.8 | ) |  | $ | (129.4 | )

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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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