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Pension Benefit Obligations - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2024	Sep. 29, 2023	Sep. 30, 2022
Retirement Benefits [Abstract]
Gain (loss) corridor rate	10.00%
Pension adjustments	$ 9	$ 24	$ 8
Applicable amount of deferred income taxes included in other comprehensive income	$ 3	$ 6	$ 2
Expected long-term rate of return on plan assets	7.00%	7.00%	6.50%
Percentage of personnel covered by collective-bargaining agreements	24.00%
Percentage of personnel covered by collective-bargaining agreements expire in one year	10.00%

X

- Definition

Defined Benefit Plan, Actuarial Gains And Losses, Amortization Corridor, Percentage Of the Greater Of Projected Benefit Obligation And Fair Value Of Plan Assets

+ References

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- Definition

Multiemployer Plans, Percentage Of Personnel Covered By Collective-Bargaining Agreements

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- Definition

Multiemployer Plans, Percentage Of Personnel Covered By Collective-Bargaining Agreements Expire In One Year

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- Definition

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

+ References

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- Definition

Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income of defined benefit plan.

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