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Investments (Details) - USD ($) $ in Millions	3 Months Ended
Investments (Details) - USD ($) $ in Millions	Mar. 30, 2024	Apr. 01, 2023	Dec. 31, 2023
Investments
Total trading short-term investments	$ 1,079		$ 973
Unrealized gains on trading securities	16	$ 30
Long term investments	133		207
Denominated in foreign currencies
Investments
Total trading short-term investments	26		18
Business Development Company
Investments
Long term investments			68
Domestic equity securities
Investments
Fair Value	221		143
Foreign equity securities
Investments
Fair Value	100		96
Domestic debt securities
Investments
Fair Value	603		593
Foreign debt securities
Investments
Fair Value	134		120
Money market funds held in trading accounts
Investments
Fair Value	14		17
Other trading securities
Investments
Fair Value	$ 7		$ 4