Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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Maximum number of shares that may be issued in accordance with the plan as a proportion of outstanding capital stock.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Stock-Based Compensation - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Jul. 31, 2018	Oct. 01, 2022	Oct. 02, 2021	Oct. 03, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)		0	0	0
Fair value of options vested		$ 6.6	$ 10.8	$ 27.4
Intrinsic value of stock options exercised		$ 58.0	$ 242.7	$ 40.1
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		48 months
Exercisable period		10 years
Unrecognized stock-based compensation expense, period of recognition		2 months 12 days	10 months 24 days
Unrecognized stock-based compensation expense		$ 0.4	$ 6.2
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		4 years
Unrecognized stock-based compensation expense, period of recognition			2 years 6 months
Unrecognized stock-based compensation expense		$ 120.6	$ 90.0
Performance Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense, period of recognition		7 months 6 days	1 year 2 months 12 days
Unrecognized stock-based compensation expense		$ 0.4	$ 3.6
2018 Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of outstanding stock maximum	5.00%
Shares reserved for future issuance (in shares)		38,593,443