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Share-Based Compensation Expense (Details) - Restricted stock units (RSUs)
$ in Millions
3 Months Ended
Jan. 30, 2021
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized share-based compensation $ 169.0
Weighted-average period for recognition of share-based compensation (in years) 1 year 8 months 4 days