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Contingencies (Schedule Of Changes In Accrued Warranty Costs) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Movement in Standard Product Warranty Accrual [Roll Forward]    
Beginning Balance $ 20.3 $ 19.1
Less: Payments 23.5 20.6
Provisions 19.0 21.9
Translation Adjustments 0.2 (0.1)
Ending Balance $ 16.0 $ 20.3