Stock Transactions And Stock-Based Compensation (Components of Stock-Based Compensation Program) (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 02, 2021	Apr. 03, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 54	$ 45
Income tax benefit	(11)	(9)
Total stock-based compensation expense, net of income taxes	43	36
RSU/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	33	28
Income tax benefit	(7)	(6)
Total stock-based compensation expense, net of income taxes	26	22
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	21	17
Income tax benefit	(4)	(3)
Total stock-based compensation expense, net of income taxes	$ 17	$ 14

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

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