SHAREHOLDERS' EQUITY (Summary Of Share-Based Incentive Plan Grant Activity For Options and SAR's) (Details) - Options and SAR's - USD ($) $ / shares in Units, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 28, 2019	Dec. 29, 2018
Shares
Outstanding (in shares)	1,539,368
Granted (in shares)	188,809
Exercised (in shares)	(341,514)
Forfeited (in shares)	(23,183)
Expired (in shares)	(4,068)
Outstanding (in shares)	1,359,412	1,539,368
Exercisable (in shares)	943,239
Weighted Average Exercise Price
Outstanding, weighted average exercise price (in dollars per share)	$ 69.31
Granted, weighted average exercise price (in dollars per share)	81.81
Exercised, weighted average exercise price (in dollars per share)	66.13
Forfeited, weighted average exercise price (in dollars per share)	76.89
Expired, weighted average exercise price (in dollars per share)	74.37
Outstanding, weighted average exercise price (in dollars per share)	71.70	$ 69.31
Exercisable, weighted average exercise price (in dollars per share)	$ 69.26
Outstanding, weighted average remaining contractual term	4 years 3 months 18 days	5 years 7 months 6 days
Exercisable, weighted average remaining contractual term	2 years 4 months 24 days
Outstanding, aggregate intrinsic value	$ 6.3	$ 16.0
Exercisable, aggregate intrinsic value	$ 5.5