Other Income (Expense), Net (Schedule of Other Income (Expense)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Other Income and Expenses [Abstract]
Other components of net periodic benefit costs	$ 3	$ 11	$ 5	$ 15
Investment gains (losses):
Realized investment gains (losses)	0	27	0	64
Unrealized investment gains (losses)	(32)	(125)	(10)	(186)
Total investment gains (losses)	(32)	(98)	(10)	(122)
Total other income (expense), net	$ (29)	$ (87)	$ (5)	$ (107)