PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - COMPONENTS OF NET PERIODIC BENEFIT COST (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Oct. 04, 2015	Oct. 02, 2016	Oct. 04, 2015
Pension Benefits
Amounts recognized in net periodic benefit cost
Service cost	$ 5,794	$ 7,068	$ 17,377	$ 21,301
Interest cost	10,130	11,025	31,914	33,187
Expected return on plan assets	(14,700)	(17,146)	(44,073)	(51,685)
Amortization of prior service (credit) cost	(262)	(294)	(785)	(881)
Amortization of net loss (gains)	8,803	7,595	26,411	22,899
Net periodic benefit cost	9,765	8,248	30,844	24,821
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	3,147	2,583	20,085	2,583
Total net periodic benefit cost	12,912	10,831	50,929	27,404
Other Benefits
Amounts recognized in net periodic benefit cost
Service cost	75	135	224	406
Interest cost	2,435	2,516	7,300	7,617
Expected return on plan assets	0	0	0	0
Amortization of prior service (credit) cost	144	151	432	457
Amortization of net loss (gains)	(4)	(11)	(10)	(40)
Net periodic benefit cost	2,650	2,791	7,946	8,440
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	0	0	0	0
Total net periodic benefit cost	$ 2,650	$ 2,791	$ 7,946	$ 8,440