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COMMITMENTS AND CONTINGENCIES - Accrued Product Warranty (Detail) - USD ($)
$ in Millions
3 Months Ended
Jan. 03, 2020
Dec. 28, 2018
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]    
Accrued product warranty, at beginning of period $ 43.2 $ 44.8
Charged to cost of revenues 20.8 13.3
Actual product warranty expenditures (17.8) (11.8)
Accrued product warranty, at end of period $ 46.2 $ 46.3