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Supplementary Data Other (Expense) Income, Net (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Other Income and Expenses [Abstract] |  |
Net (losses) gains on sales of businesses | $ (24.4) | $ 0.9
Other | 0.0 | (0.1)
Total other (expense) income, net | $ (24.4) | $ 0.8

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- Definition Amount of income related to nonoperating activities, classified as other. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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