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Summary Of Accounting Policies (Accumulated Other Comprehensive Loss) (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income Loss [Line Items]
Unamortized loss on pension and post-retirement benefit plans, tax	$ 144.1	$ 157.8

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- Definition

Accumulated other comprehensive income defined benefit plans net unamortized loss tax

+ References

No definition available.

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