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Income Taxes Schedule of Income before Income Tax, Domestic and Foreign (Tables) | 12 Months Ended
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Dec. 31, 2017
Income Tax Disclosure [Abstract] |
Schedule of Income before Income Tax, Domestic and Foreign | The components of income before income taxes are listed below.
| Years ended December 31,
| 2017 |  | 2016 |  | 2015
Domestic | $ | 528.2 |  |  | $ | 504.7 |  |  | $ | 461.0 |
Foreign | 347.8 |  |  | 325.5 |  |  | 301.2 |
Total | $ | 876.0 |  |  | $ | 830.2 |  |  | $ | 762.2 |

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- Definition Tabular disclosure of income before income tax between domestic and foreign jurisdictions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(1)(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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