Pension and Retiree Medical Benefits - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 13, 2026	Jun. 14, 2025
Domestic Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 200	$ 250
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 52	$ 29

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details