PENSION PLANS - Components of Net Periodic Benefit Cost (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Total net periodic benefit cost	$ 64	$ 41,471	$ 60,934
Defined Benefit Postretirement Health Coverage [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Interest cost			161
Amortization of prior service credits			(27,695)
Amortization of net actuarial losses			4,120
Total net periodic benefit cost			(23,414)
Pension plans
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Interest cost	18,329	20,127	21,829
Expected return on plan assets	(20,668)	(19,873)	(20,745)
Settlement loss	0	393	158
Amortization of net actuarial losses	2,403	40,824	59,692
Total net periodic benefit cost	$ 64	$ 41,471	$ 60,934