PENSION AND OTHER POSTRETIREMENT BENEFITS (Details 3)	12 Months Ended
Dec. 30, 2012	Dec. 25, 2011
Total assets	100.00%	100.00%
Equity Securities [Member]
Total assets	71.00%	71.00%
Debt Securities [Member]
Total assets	29.00%	29.00%

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(i)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=21915506&loc=d3e2446-114920

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration