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Pension Plans (Summary Of Amounts In Accumulated OCI To Be Amortized Over Next Fiscal Year) (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 29, 2012
Pension Plans, Postretirement and Other Employee Benefits [Line Items]  
Amortization of prior service credit $ (0.7)
Amortization of unrecognized loss 39.0
Total to be recognized in net periodic benefit cost $ 38.3