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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES. (Basis of presentation) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2017
Accounting Policies [Abstract] |  |
Income tax provision related to the tax law changes | $ 71.1 | $ 71.1
Income tax provision related to remeasurement of deferred tax assets and liabilities |  | 18.9
Income tax provision related to mandatory deemed repatriation of foreign sourced net earnings |  | $ 52.2

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- Definition Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Provisional Income Tax Expense (Benefit) + References No definition available. + Details
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