Share-Based Compensation Plans - Summary of Restricted Stock Awards and Units Activity (Detail)	12 Months Ended
Oct. 02, 2020 $ / shares shares
Maximum
Number of Shares
Vested (in shares)	(443,787)
Restricted Stock Awards and Units
Number of Shares
Beginning balance- unvested (in shares)	2,615,000
Granted (in shares)	1,210,000
Vested (in shares)	(648,000)
Forfeited, canceled or expired (in shares)	(389,000)
Ending balance- unvested (in shares)	2,788,000
Weighted-Average Grant Date Fair Value
Beginning balance- unvested (in USD per share) \| $ / shares	$ 21.81
Granted (in USD per share) \| $ / shares	22.07
Vested (in USD per share) \| $ / shares	26.24
Forfeited, canceled or expired (in USD per share) \| $ / shares	22.18
Ending balance- unvested (in USD per share) \| $ / shares	$ 20.84
RSUs \| Maximum
Weighted-Average Grant Date Fair Value
Award vesting period	4 years

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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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