Stock Transactions And Stock-Based Compensation (Components of Stock-Based Compensation Program) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 02, 2021	Jul. 03, 2020	Jul. 02, 2021	Jul. 03, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 53	$ 47	$ 107	$ 92
Income tax benefit	(11)	(10)	(22)	(19)
Total stock-based compensation expense, net of income taxes	42	37	85	73
RSU/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	31	28	64	56
Income tax benefit	(6)	(6)	(13)	(12)
Total stock-based compensation expense, net of income taxes	25	22	51	44
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	22	19	43	36
Income tax benefit	(5)	(4)	(9)	(7)
Total stock-based compensation expense, net of income taxes	$ 17	$ 15	$ 34	$ 29

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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