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Business Segments (Geographic Information on Certain Long-Lived Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Certain Long-Lived Assets | $ 9,757.6 | $ 8,220.0 | $ 8,316.2
United States [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Certain Long-Lived Assets | 6,634.3 | 5,050.5 | 5,121.6
Canada [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Certain Long-Lived Assets | 1,644.6 | 1,635.9 | 1,451.4
Malaysia [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Certain Long-Lived Assets | 1,325.4 | 1,392.3 | 1,637.0
Other [Member] |  |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |  |
Certain Long-Lived Assets | $ 153.3 | $ 141.3 | $ 106.2

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- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 + Details
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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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- Details
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