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EMPLOYEE BENEFIT PLANS Asset allocations (Details) | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Defined Benefit Plan Disclosure |  |
Equity securities | 100.00% | 100.00%
Fixed Income Investments [Member] |  |
Defined Benefit Plan Disclosure |  |
Equity securities | 43.40% | 37.50%
Other Investments [Member] |  |
Defined Benefit Plan Disclosure |  |
Equity securities | 18.70% | 6.90%
Canada | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure |  |
Equity securities | 11.70% | 23.00%
United States | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure |  |
Equity securities | 4.60% | 14.00%
Non-US [Member] | Equity Securities [Member] |  |
Defined Benefit Plan Disclosure |  |
Equity securities | 21.60% | 18.60%

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