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Product Warranties (Changes In Product Warranty Liability) (Detail)
$ in Millions
3 Months Ended
Apr. 01, 2016
USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]  
Balance as of fiscal year end 2015 $ 18.5
Accruals for warranties issued 3.7
Changes in estimates 1.4
Warranty settlements (in cash or in kind) (5.7)
Balance as of the end of the first quarter of fiscal 2016 $ 17.9