Accumulated Other Comprehensive Income (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 29, 2018		Dec. 30, 2017		Dec. 31, 2016
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		$ (75.2)		$ (81.1)
Other comprehensive income (loss) before reclassifications	[1]	(15.8)		0.3
Amounts reclassified from accumulated other comprehensive income (loss)		14.3		9.4
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax		(3.5)		(3.8)
Net reclassifications		10.8		5.6
Other comprehensive income (loss)		(5.0)	[1]	5.9	[1]	$ (25.0)
Effect Of New Accounting Principle In Period Of Adoption		(8.1)
Accumulated other comprehensive income (loss), Ending Balance		(88.3)		(75.2)		(81.1)
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(32.7)		(53.5)
Other comprehensive income (loss) before reclassifications		(20.3)		20.8
Amounts reclassified from accumulated other comprehensive income (loss)		0.0		0.0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax		0.0		0.0
Net reclassifications		0.0		0.0
Other comprehensive income (loss)	[1]	(20.3)		20.8
Effect Of New Accounting Principle In Period Of Adoption		0.0
Accumulated other comprehensive income (loss), Ending Balance		(53.0)		(32.7)		(53.5)
Derivative [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(13.9)		2.8
Other comprehensive income (loss) before reclassifications		14.4		(16.0)
Amounts reclassified from accumulated other comprehensive income (loss)		3.8		(0.4)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax		(1.3)		(0.3)
Net reclassifications		2.5		(0.7)
Other comprehensive income (loss)	[1]	16.9		(16.7)
Effect Of New Accounting Principle In Period Of Adoption		2.1
Accumulated other comprehensive income (loss), Ending Balance		0.9		(13.9)		2.8
Pension adjustments [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated other comprehensive income (loss), Beginning balance		(28.6)		(30.4)
Other comprehensive income (loss) before reclassifications		(9.9)		(4.5)
Amounts reclassified from accumulated other comprehensive income (loss)		10.5		9.8
Reclassification from Accumulated Other Comprehensive Income, Current Period, Tax		(2.2)		(3.5)
Net reclassifications		8.3		6.3
Other comprehensive income (loss)	[1]	(1.6)		1.8
Effect Of New Accounting Principle In Period Of Adoption		6.0
Accumulated other comprehensive income (loss), Ending Balance		$ (36.2)		$ (28.6)		$ (30.4)

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