Income Taxes (Schedule Of Provision For Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2018	Dec. 29, 2017		Dec. 30, 2016
Income Tax Disclosure [Abstract]
Current	$ (19.7)	$ 98.6		$ 34.0
Deferred	(25.8)	(6.1)		(15.4)
US Federal, Income tax provision	(45.5)	92.5		18.6
Current	5.0	4.5		3.6
Deferred	(3.6)	(1.0)		0.5
US State, Income tax provision	1.4	3.5		4.1
Current	57.0	42.7		28.8
Deferred	(18.2)	(9.0)		(7.6)
Foreign, Income tax provision	38.8	33.7		21.2
Income tax provision (benefit)	$ (5.3)	$ 129.7	[1]	$ 43.9	[1]
Effective tax rate	(2.00%)	52.00%		25.00%

[1] See Note 2 for a summary of adjustments