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6. Accumulated Other Comprehensive Income 6. Accumulated Other Comprehensive Income (Tables) | 6 Months Ended
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Jun. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] |
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | Accumulated other comprehensive income included in our Condensed Consolidated Balance Sheets consists of the following components (in millions):
| Foreign currency translation adjustments | Foreign other post-employment benefits adjustments | Net unrealized holding gains on available-for-sale investments | Total accumulated other comprehensive income
Balances as of January 1, 2018*: | $ | 77.4 |  | $ | (22.3 | ) | $ | 4.5 |  | $ | 59.6 |
Other comprehensive (loss) income, before reclassifications | (77.6 | ) | 0.5 |  | (2.1 | ) | (79.2 | )
Amounts reclassified from Accumulated other comprehensive income | — |  | 0.8 |  | 0.2 |  | 1.0 |
Income tax effects | — |  | (0.1 | ) | — |  | (0.1 | )
Other comprehensive (loss) income, net of income taxes | (77.6 | ) | 1.2 |  | (1.9 | ) | (78.3 | )
Balances as of June 30, 2018: | $ | (0.2 | ) | $ | (21.1 | ) | $ | 2.6 |  | $ | (18.7 | )
| Foreign currency translation adjustments | Foreign other post-employment benefits adjustments | Net unrealized holding gains on available-for-sale investments | Total accumulated other comprehensive income
Balances as of January 1, 2017: | $ | 1.3 |  | $ | (18.6 | ) | $ | 435.0 |  | $ | 417.7 |
Other comprehensive income (loss), before reclassifications | 60.5 |  | (2.5 | ) | 213.2 |  | 271.2 |
Amounts reclassified from Accumulated other comprehensive income | — |  | — |  | — |  | — |
Income tax effects | — |  | 0.5 |  | (78.5 | ) | (78.0 | )
Other comprehensive income (loss), net of income taxes | 60.5 |  | (2.0 | ) | 134.7 |  | 193.2 |
Balances as of June 30, 2017: | $ | 61.8 |  | $ | (20.6 | ) | $ | 569.7 |  | $ | 610.9 |
Reclassification Out of Accumulated Other Comprehensive Income [Table Text Block] | The amounts reclassified out of Accumulated other comprehensive income into the Condensed Consolidated Statements of Income, with presentation location, were as follows:
| Income before taxes impact (in millions): |
|  | Three Months Ended |  | Six Months Ended |  |
|  | June 30, |  | June 30, |  |
Components of Comprehensive income |  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | Location
Amortization of foreign other post-employment benefit items |  | $ | (0.5 | ) |  | $ | 0.2 |  |  | $ | (0.8 | ) |  | $ | — |  |  | Other (income) expense, net
Net holding (losses) gains on equity securities and available-for-sale investments |  | $ | (0.1 | ) |  | $ | (0.2 | ) |  | $ | (0.2 | ) |  | $ | — |  |  | Other (income) expense, net
Reclassification adjustments are calculated using the specific identification method.

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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 information about items reclassified out of accumulated other comprehensive income (loss). + 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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