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Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Sep. 28, 2024 | Sep. 30, 2023 | Oct. 01, 2022
Defined Benefit Plan Disclosure |  |  |
One-time pension settlement charge | $ 0 | $ 12,542 | $ 0
Class B Common Stock |  |  |
Defined Benefit Plan Disclosure |  |  |
Number of shares owned by the participants under RSP (in shares) | 1,807,605 |  |
Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Total accumulated benefit obligation | $ 687,292 | $ 587,754 |
Fair value of assets at measurement date | 586,409 |  |
Trust for Unqualified Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Estimated future employer contributions in next fiscal year | 6,200 |  |
Postretirement Benefit Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets | $ 0 |  |
Discount rate | 4.50% | 5.60% | 5.20%
Service cost discount rate | 5.40% | 5.10% | 2.70%
Interest cost discount rate | 5.70% | 5.10% | 1.50%
Assumed annual per capita rate of increase of medical and drug costs for next fiscal year | 8.50% |  |
Medical and drug cost - ultimate trend rate | 4.50% |  |
Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate | 2035 |  |
U.S. Plans | Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Pension settlement reduced projected benefit obligation | $ 0 | $ 40,518 |
Pension settlement reduced fair value of assets | 0 | 40,518 |
One-time pension settlement charge |  | 12,542 |
Fair value of assets at measurement date | $ 472,633 | $ 392,444 | $ 445,723
Assumptions for pension expense, average rate of return on plan assets | 7.30% | 6.50% | 5.00%
Plan assets | $ 0 | $ 0 |
Discount rate | 5.00% | 5.90% | 5.50%
Service cost discount rate | 6.00% | 5.50% | 3.30%
Interest cost discount rate | 5.80% | 5.40% | 2.70%
U.S. Plans | Equity securities | Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Actual Plan Asset Allocations | 41.00% | 40.00% |
U.S. Plans | Fixed income securities | Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Actual Plan Asset Allocations | 59.00% | 60.00% |
Non-U.S. Plans | Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Pension settlement reduced projected benefit obligation | $ 565 | $ 2,146 |
Pension settlement reduced fair value of assets | 565 | 2,146 |
Fair value of assets at measurement date | $ 113,776 | $ 97,184 | $ 90,994
Assumptions for pension expense, average rate of return on plan assets | 4.40% | 4.30% | 2.90%
Estimated future employer contributions in next fiscal year | $ 8,300 |  |
Plan assets | $ 15,640 | $ 13,647 |
Discount rate | 4.10% | 4.70% | 4.40%
Service cost discount rate | 4.70% | 4.50% | 2.00%
Interest cost discount rate | 4.60% | 4.50% | 1.70%
Non-U.S. Plans | Equity securities | Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Actual Plan Asset Allocations | 26.00% | 25.00% |
Non-U.S. Plans | Fixed income securities | Pension Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Actual Plan Asset Allocations | 43.00% | 68.00% |
Profit Sharing |  |  |
Defined Benefit Plan Disclosure |  |  |
Profit share expense | $ 46,424 | $ 38,702 | $ 32,993

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Assumed rate, for next fiscal year, based on annual change in cost of health care cost benefits used to measure expected cost of benefits covered by defined benefit postretirement plan. Factors include, but are not limited to, estimate of health care inflation, change in health care utilization or delivery pattern, technological advances, and change in health status of participant. Excludes factors for change in composition of plan population by age and dependency status. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (l) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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- Definition Amount of (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a)(10) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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