Stock Transactions And Stock-Based Compensation (Components of Stock-Based Compensation Program) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 03, 2020	Jun. 28, 2019	Jul. 03, 2020	Jun. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	$ 46.6	$ 41.4	$ 91.8	$ 76.5
Income tax benefit	(9.4)	(8.4)	(18.7)	(15.7)
Total stock-based compensation expense, net of income taxes	37.2	33.0	73.1	60.8
RSU/PSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	28.0	24.9	55.6	46.6
Income tax benefit	(5.6)	(5.1)	(11.3)	(9.6)
Total stock-based compensation expense, net of income taxes	22.4	19.8	44.3	37.0
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pretax compensation expense	18.6	16.5	36.2	29.9
Income tax benefit	(3.8)	(3.3)	(7.4)	(6.1)
Total stock-based compensation expense, net of income taxes	$ 14.8	$ 13.2	$ 28.8	$ 23.8

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

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