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Share-Based Employee Compensation (Summary of Performance Share Award Activity) (Details) - Deferred Compensation for Non Management Directors | 12 Months Ended
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Sep. 27, 2020 $ / shares shares | Sep. 29, 2019 $ / shares shares | Sep. 30, 2018 shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward] |  |  |
Stock awards outstanding, Beginning balance, Shares | shares | 100,005 |  |
Deferred directors’ compensation, Shares | shares | 3,851 |  |
Dividend equivalents, Shares | shares | 2,224 |  |
Stock distribution, Shares | shares | (204) | 0 | 0
Stock awards outstanding, Ending balance, Shares | shares | 105,876 | 100,005 |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] |  |  |
Stock awards outstanding, Weighted-Average Grant Date Fair Value, Beginning balance (in usd per share) | $ / shares | $ 38.87 |  |
Deferred directors' compensation, Weighted-Average Grant Date Fair Value (in usd per share) | $ / shares | 81.56 |  |
Dividend equivalents, Weighted-Average Grant Date Fair Value (in usd per share) | $ / shares | $ 68.80 |  |
Dividend equivalents, Weighted- Average Grant Date Fair Value (in usd per share) | $ / shares | 86.74 |  |
Stock awards outstanding, Weighted-Average Grant Date Fair Value, Ending balance (in usd per share) | $ / shares | $ 40.96 | $ 38.87 |

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- Definition Deferred directors' compensation, Weighted-Average Grant Date Fair Value + References No definition available. + Details
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- Definition Dividend Equivalents, Weighted Average Grant Date Fair Value, Per Share + References No definition available. + Details
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- Definition 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. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options. + 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)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Definition Number of shares issued under share-based payment arrangement. + 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 -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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