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Supplementary Data Other (Expense) Income , Net (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Other Income and Expenses [Abstract] |  |  |  |
Net (losses) gains on sales of businesses and investments | $ (6.2) | $ 3.9 | $ (18.3) | $ (14.6)
Other (expense) income, net | (3.7) | 1.4 | (6.2) | 1.1
Total other (expense) income, net | $ (9.9) | $ 5.3 | $ (24.5) | $ (13.5)

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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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