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Pensions And Other Postretirement Benefits (Multiemployer Plans) (Details) $ in Millions | 12 Months Ended
--- | ---
Oct. 02, 2021 USD ($) plan | Oct. 03, 2020 USD ($) | Sep. 28, 2019 USD ($)
Multiemployer Plan [Line Items] |  |  |
Multiemployer Plan, Number of Plans | 1 |  |
Pension Plan [Member] |  |  |
Multiemployer Plan [Line Items] |  |  |
Multiemployer Plan, Employer Contribution, Cost | $ | $ 1 | $ 1 |
Defined Benefit Plan, Number of Plans | plan | 4 |  |
Pension Plan [Member] | Defined Benefit Plan, Unfunded Plan [Member] | Nonqualified Plan [Member] |  |  |
Multiemployer Plan [Line Items] |  |  |
Defined Benefit Plan, Number of Plans | plan | 3 |  |
Pension Plan [Member] | Bakery and Confectionary Union & Industry International Pension Fund [Member] |  |  |
Multiemployer Plan [Line Items] |  |  |
Multiemployer Plan, Employer Contribution, Cost | $ | $ 1 | $ 1 | $ 1
Surcharge Imposed | 10.00% |  |
Multiemployer Plans, Collective-Bargaining Arrangement, Expiration Date (Deprecated 2020-01-31) | Aug. 02, 2024 |  |

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- Definition Amount of cost for employer contribution to multiemployer plan. Multiemployer plan includes, but is not limited to, pension plan determined to be individually significant and insignificant and other postretirement benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=35742348&loc=SL14450788-114948 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 35 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=29639808&loc=d3e29008-114946 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 9 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947 + Details
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- Definition Expiration date of collective-bargaining arrangement (CBA) requiring contribution to multiemployer pension plan determined to be individually insignificant, in YYYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 80 -Section 50 -Paragraph 5 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947 + Details
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