Basis of Presentation - Noncontrolling Interest (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Other (Income) and Expense
Noncontrolling interest amounts, net of tax	$ 6.2	$ 4.4	$ 17.9	$ 11.5

Amount of Net Income (Loss) attributable to noncontrolling interest.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
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-URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580

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-Name Accounting Standards Codification
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