INCOME TAXES (Schedule of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2013	Dec. 30, 2012
Deferred tax liabilities:
PP&E and identified intangible assets	$ 125,197	$ 124,921
Inventories	74,287	107,420
Insurance claims and losses	33,625	28,701
All other current	9,453	24,857
All other noncurrent	9,031	9,957
Total deferred tax liabilities	251,593	295,856
Deferred tax assets:
Net operating losses	20,907	244,151
Foreign net operating losses	15,437	19,113
Credit carry forwards	79,555	60,129
Allowance for doubtful accounts	4,510	5,583
Accrued liabilities	47,384	41,808
All other current	12,282	581
All other noncurrent	10,292	3,627
Workers compensation	42,951	45,320
Pension and other postretirement benefits	20,364	56,847
Total deferred tax assets	253,682	477,159
Valuation allowance	(10,400)	(188,354)
Net deferred tax assets	243,282	288,805
Net deferred tax liabilities	$ 8,311	$ 7,051