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RECENT ACCOUNTING PRONOUNCEMENTS Adoption of ASU 2014-09 - Opening Balance Sheet Cumulative Effect Adjustments (Details) - Accounting Standards Update 2014-09 [Member] - USD ($) $ in Millions | 6 Months Ended |  |
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Jun. 30, 2018 | Jan. 01, 2018 | Dec. 31, 2017
Accounts Receivable [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ 71.9 |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | $ 557.7 |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | $ 629.6
Inventories [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | (66.3) |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | 378.2 |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | 311.9
Other Current Assets [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | (43.2) |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | 190.6 |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | 147.4
Deferred Tax Asset [Domain] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | (1.0) |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | 150.9 |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | 149.9
Accrued Liabilities [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | 43.7 |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | (428.1) |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | (384.4)
Other Noncurrent Liabilities [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | (1.0) |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | (174.6) |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | (175.6)
Retained Earnings [Member] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ (4.1) |  |
Balance as of January 1, 2018 - Subsequent to Adoption of ASU 2014-09 |  | $ (1,852.0) |
Balance as of December 31, 2017 - Prior to Adoption of ASU 2014-09 |  |  | $ (1,856.1)

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