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Warranties - Accrued Warranty Classified in Consolidated Balance Sheet (Detail) - USD ($)
$ in Millions
Oct. 31, 2018
Oct. 31, 2017
Oct. 29, 2016
Guarantees [Abstract]      
Current liabilities $ 19.0 $ 26.0  
Other long-term liabilities 11.8 14.2  
Total warranty liability $ 30.8 $ 40.2 $ 38.8