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Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2025	Mar. 30, 2024	Dec. 31, 2024
Investments
Total trading short-term investments	$ 1,015		$ 1,075
Unrealized gains (losses) on trading securities	(12)	$ 16
Long term investments	141		141
Denominated in foreign currencies
Investments
Total trading short-term investments	55		40
Domestic equity securities
Investments
Fair Value	203		205
Foreign equity securities
Investments
Fair Value	104		98
Domestic debt securities
Investments
Fair Value	504		635
Foreign debt securities
Investments
Fair Value	102		102
Money market funds held in trading accounts
Investments
Fair Value	98		28
Other trading securities
Investments
Fair Value	$ 4		$ 7

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Amount of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in net income (trading).

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