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Investments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
Investments (Details) - USD ($) $ in Millions	Sep. 30, 2023	Oct. 01, 2022	Sep. 30, 2023	Oct. 01, 2022	Dec. 31, 2022
Investments
Total trading short-term investments	$ 1,134		$ 1,134		$ 1,086
Unrealized gains (losses) on trading securities	(45)	$ (65)	(37)	$ (220)
Long term investments	191		191		185
Denominated in foreign currencies
Investments
Total trading short-term investments	15		15		16
Domestic equity securities
Investments
Fair Value	131		131		433
Foreign equity securities
Investments
Fair Value	89		89		169
Domestic debt securities
Investments
Fair Value	450		450		399
Foreign debt securities
Investments
Fair Value	100		100		66
Money market funds held in trading accounts
Investments
Fair Value	359		359		12
Other trading securities
Investments
Fair Value	$ 5		$ 5		$ 7