Other Income (Expense), Net (Schedule of Other Income (Expense)) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 26, 2025	Sep. 27, 2024	Sep. 26, 2025	Sep. 27, 2024
Other Income and Expenses [Abstract]
Other components of net periodic benefit costs	$ 1	$ (1)	$ 5	$ 0
Investment gains (losses):
Realized investment gains (losses)	0	198	(72)	159
Unrealized investment gains (losses)	(15)	(95)	(77)	(152)
Total investment gains (losses)	(15)	103	(149)	7
Gain on sale of product line	0	0	9	0
Total other income (expense), net	$ (14)	$ 102	$ (135)	$ 7

Amount of net pension and postretirement benefits classified as other income.

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Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations.

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Amount of realized and unrealized gain (loss) on investment.

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Amount of income (expense) related to nonoperating activities, classified as other.

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Amount of realized gain (loss) on investment.

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Amount of unrealized gain (loss) on investment.

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