Share-Based Compensation - Options Granted and Weighted Average Grant Date Fair Value (Details) shares in Millions	9 Months Ended
Jun. 26, 2020 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Instruments other than options, Units granted (in shares)	4.0
TBOs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options, Units granted (in shares)	1.8
Options, Weighted-Average Grant Date Fair Value (in dollars per share) \| $ / shares	$ 9.32
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Instruments other than options, Units granted (in shares)	1.2
Instruments other than options, Weighted-Average Grant-Date Fair Value (in dollars per share) \| $ / shares	$ 40.86
PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Instruments other than options, Units granted (in shares)	0.9
Instruments other than options, Weighted-Average Grant-Date Fair Value (in dollars per share) \| $ / shares	$ 43.59
2016 PSU Grants paid (in shares)	0.3
Award vesting period	3 years
Deferred Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Instruments other than options, Units granted (in shares)	0.1
Instruments other than options, Weighted-Average Grant-Date Fair Value (in dollars per share) \| $ / shares	$ 43.05

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Shares Paid

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- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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- Definition

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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- Definition

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

+ References

No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
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-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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