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v3.25.3

Pensions And Other Postretirement Benefits (Multiemployer Plans) (Details) $ in Millions | 12 Months Ended
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Sep. 27, 2025 USD ($) plan | Sep. 28, 2024 USD ($) | Sep. 30, 2023 USD ($)
Multiemployer Plan [Line Items] |  |  |
Multiemployer Plan, Number of Plans | 1 |  |
Pension Plan [Member] |  |  |
Multiemployer Plan [Line Items] |  |  |
Multiemployer Plan, Employer Contribution, Cost | $ | $ 1 | $ 2 |
Defined Benefit Plan, Number of Plans | plan | 4 |  |
Pension Plan [Member] | Nonqualified Plan |  |  |
Multiemployer Plan [Line Items] |  |  |
Defined Benefit Plan, Number of Plans | plan | 3 |  |
Bakery and Confectionary Union | Pension Plan [Member] |  |  |
Multiemployer Plan [Line Items] |  |  |
Multiemployer Plan, Employer Contribution, Cost | $ | $ 1 | $ 2 | $ 2
Multiemployer Plan, Pension, Insignificant, Collective-Bargaining Arrangement, Expiration Date | Aug. 01, 2027 |  |
Multiemployer Plans, Surcharge Imposed | 10.00% |  |

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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/disclosureRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480576/715-80-50-11 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 55 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480547/715-80-55-8 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 35 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480606/715-80-35-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 80 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480576/715-80-50-9 + Details
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