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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - ENVIRONMENTAL LIABILITIES AND EXPENDITURES (Details) | 12 Months Ended
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Dec. 31, 2017
ENVIRONMENTAL LIABILITIES AND EXPENDITURES |
Minimum period of investigations and cleanup for Comprehensive Environmental Response, Compensation and Liability Act National Priorities List sites | 10 years

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- Definition Minimum period of investigation and cleanup for Comprehensive Environmental Response Compensation and Liability Act (CERCLA) National Priorities List (NPL) sites. + References No definition available. + Details
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- References No definition available. + Details
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