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Information for Company Retirement Plans for which the Projected Benefit Obligation Exceeds Assets (Detail) (Pension Plans, Defined Benefit, USD $) In Thousands, unless otherwise specified | Dec. 25, 2011 | Dec. 26, 2010
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Pension Plans, Defined Benefit |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |
Projected benefit obligation | $ 3,351,494 | $ 3,148,228
Fair value of plan assets | $ 2,408,768 | $ 2,514,939

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- Definition Defined Benefit Plan, Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets, Aggregate Fair Value Of Plan Assets + References No definition available. + Details
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- Definition Defined Benefit Plan, Pension Plans With Projected Benefit Obligations In Excess Of Plan Assets, Aggregate Projected Benefit Obligation + References No definition available. + Details
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- Details
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