PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Estimated Net Periodic Benefit Cost) (Details) $ in Millions |
12 Months Ended |
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Dec. 31, 2017
USD ($)
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| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | Ìý |
| Estimated net periodic benefit cost | $ 6.1 |
| Pension Benefits [Member] | Ìý |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | Ìý |
| Estimated net periodic benefit cost | 12.3 |
| Other Benefits [Member] | Ìý |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | Ìý |
| Estimated net periodic benefit cost | $ (6.2) |
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- Definition Defined Benefit Plan, Expected Net Periodic Benefit Cost No definition available.
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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. No definition available.
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