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Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2025	Jun. 29, 2024	Jun. 28, 2025	Jun. 29, 2024	Dec. 31, 2024
Investments
Total trading short-term investments	$ 986		$ 986		$ 1,075
Unrealized gains on trading securities	36	$ 5	24	$ 18
Long term investments	211		211		141
Investment in long-term investments			70	$ 4
Denominated in foreign currencies
Investments
Total trading short-term investments	50		50		40
NAV
Investments
Investment in long-term investments	50
Domestic equity securities
Investments
Fair Value	239		239		205
Foreign equity securities
Investments
Fair Value	115		115		98
Domestic debt securities
Investments
Fair Value	498		498		635
Foreign debt securities
Investments
Fair Value	103		103		102
Money market funds held in trading accounts
Investments
Fair Value	$ 31		$ 31		28
Other trading securities
Investments
Fair Value					$ 7

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