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Investments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
Investments (Details) - USD ($) $ in Millions	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022	Dec. 31, 2022
Investments
Total trading short-term investments	$ 1,225		$ 1,225		$ 1,086
Unrealized gains (losses) on trading securities	21	$ (110)	53	$ (150)
Long term investments	188		188		185
Funding of long-term investment			10	$ 33
Denominated in foreign currencies
Investments
Total trading short-term investments	20		20		16
Domestic debt securities
Investments
Fair Value	472		472		399
Domestic equity securities
Investments
Fair Value	361		361		433
Foreign equity securities
Investments
Fair Value	174		174		169
Foreign debt securities
Investments
Fair Value	98		98		66
Money market funds held in trading accounts
Investments
Fair Value	117		117		12
Other trading securities
Investments
Fair Value	$ 3		$ 3		$ 7