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Pension Plans (Summary Of Amounts Included In Accumulated Other Comprehensive Income (Loss)) (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
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Dec. 29, 2012 | Dec. 31, 2011
Pension Plans, Postretirement and Other Employee Benefits [Line Items] |  |
Net gain (loss), tax | $ 147.1 | $ 155.6
Prior service cost, tax | $ 2.5 | $ 1.9

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- Definition Pension and other postretirement benefit plans, accumulated other comprehensive income (loss), net gains (losses), tax + References No definition available. + Details
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- Definition Pension and other postretirement benefit plans, accumulated other comprehensive income (loss), net prior service cost (credit), tax + References No definition available. + Details
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- Details
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