Financial Instruments - Fair Values of Financial Assets and Liabilities - Debt AFS (Detail) - Fair Value, Inputs, Level 3 - USD ($) $ in Millions	Mar. 21, 2026	Dec. 27, 2025
Assets
Debt Securities, Available-for-Sale [Line Items]
Debt Securities, Available-for-Sale	$ 1,998	$ 2,127
Liability
Debt Securities, Available-for-Sale [Line Items]
Debt Securities, Available-for-Sale	$ 0	$ 0

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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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