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Supplemental Financial Information (Accrued Liabilities) (Details) - USD ($) $ in Millions | Sep. 30, 2018 | Dec. 31, 2017
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Supplemental Financial Information [Abstract] |  |
Accrued interest | $ 78.1 | $ 83.1
Personnel costs | 80.9 | 112.0
Deferred revenue | 69.0 | 71.9
Taxes | 46.8 | 46.4
Derivative liabilities | 8.8 | 0.4
Other | 26.4 | 12.1
Accrued liabilities and other | $ 310.0 | $ 325.9

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- Definition The carrying amount of consideration received or receivable as of the balance sheet date on potential earnings that were not recognized as revenue in conformity with GAAP, and which are expected to be recognized as such within one year or the normal operating cycle, if longer, including sales, license fees, and royalties, but excluding interest income. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765 + Details
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- Definition Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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