PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - NARRATIVE (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 272	$ 296	$ 1,170	$ 1,301
Other Benefits
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 3,986	$ 6,334	$ 7,749	$ 12,778