PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Plan Assumptions) (Detail)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Pension Plans Defined Benefit [Member]
DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.88%	4.11%
DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationRateOfCompensationIncrease	3.35%	3.36%
DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	4.12%	3.88%
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets	7.81%	7.93%
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostRateOfCompensationIncrease	3.35%	3.37%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan Year That Rate Reaches Ultimate Trend Rate Net Periodic	2019	2015
DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAbstract
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.00%	4.25%
DefinedBenefitPlanAssumedHealthCareCostTrendRatesAbstract
DefinedBenefitPlanHealthCareCostTrendRateAssumedForNextFiscalYear	8.25%	5.70%
DefinedBenefitPlanUltimateHealthCareCostTrendRate	4.50%	5.40%
DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingNetPeriodicBenefitCostAbstract
DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate	4.25%	3.75%
Defined Benefit Plan Assumed Health Care Cost Trend Rates Net Periodic [Abstract]
Defined Benefit Plan Health Care Cost Trend Rate Assumed for Next Fiscal Year Net Periodic	8.75%	5.50%
Defined Benefit Plan Ultimate Health Care Cost Trend Rate Net Periodic	4.50%	4.59%