Income Taxes (Schedule Of Provision For Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 29, 2017	Dec. 30, 2016	Jan. 01, 2016
Income Tax Disclosure [Abstract]
Current	$ 98.6	$ 34.0	$ 47.5
Deferred	0.8	(14.3)	(23.0)
US Federal, Income tax provision	99.4	19.7	24.5
Current	4.5	3.5	5.7
Deferred	(1.1)	0.6	(2.8)
US State, Income tax provision	3.4	4.1	2.9
Current	42.7	28.8	25.4
Deferred	(7.6)	(8.1)	(21.7)
Foreign, Income tax provision	35.1	20.7	3.7
Income tax provision	$ 137.9	$ 44.5	$ 31.1
Effective tax rate	53.00%	25.00%	20.00%