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Borrowings and Credit Arrangements - Interest Expense Senior Notes (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Dec. 29, 2018 | Dec. 30, 2017 | Jan. 19, 2018
Line of Credit Facility [Line Items] |  |  |
Interest expense | $ 15,700,000 | $ 17,500,000 |
2025 Senior Notes |  |  |
Line of Credit Facility [Line Items] |  |  |
Stated interest rate | 4.375% |  |
Senior Notes | 2028 Senior Notes |  |  |
Line of Credit Facility [Line Items] |  |  |
Stated interest rate | 4.625% |  | 4.625%
Interest expense | $ 4,800,000 | 0 |
Senior Notes | 2025 Senior Notes |  |  |
Line of Credit Facility [Line Items] |  |  |
Stated interest rate | 4.375% |  |
Interest expense | $ 10,900,000 | 3,500,000 |
Senior Notes | 2022 Senior Notes |  |  |
Line of Credit Facility [Line Items] |  |  |
Stated interest rate | 5.25% |  |
Interest expense | $ 0 | $ 14,000,000 |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Aggregate amount of interest expense on all borrowings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.7,8) -URI http://asc.fasb.org/extlink&oid=114873765&loc=SL114874048-224260 + Details
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