Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017	Dec. 30, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	$ (602.1)	$ (529.4)	$ (571.5)
Cumulative Effect of New Accounting Principle in Period of Adoption	7.1	0.0		$ (5.0)	$ (24.2)
Other comprehensive income (loss) before reclassifications	(33.1)	(44.0)	41.7
Amounts reclassified from accumulated other comprehensive loss	1.9	(4.5)	0.4
Net other comprehensive income (loss)	(31.2)	(48.5)	42.1
Ending balance	(638.3)	(602.1)	(529.4)
Amounts reclassified from accumulated other comprehensive loss, cash flow hedges, before tax		6.9	1.4
Gain (Loss) Reclassification Adjustment From AOCI On Derivatives, Tax	(0.9)
Gain (Loss) Reclassification Adjustment From AOCI On Derivatives Before Tax	(3.1)
Amounts reclassified from accumulated other comprehensive loss, cash flow hedges, tax		(1.6)	(0.6)
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, prior service benefit, before tax	1.3	0.7	1.3
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, pension settlement costs, before tax	(0.7)	(1.3)	(1.0)
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, actuarial losses, before tax	(0.3)	(0.2)	(2.0)
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, tax	0.0	0.0	0.5
Foreign Currency Items
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(579.1)	(501.9)	(544.3)
Cumulative Effect of New Accounting Principle in Period of Adoption				(3.8)	(24.2)
Other comprehensive income (loss) before reclassifications	(17.3)	(53.0)	42.4
Amounts reclassified from accumulated other comprehensive loss	0.0	0.0	0.0
Net other comprehensive income (loss)	(17.3)	(53.0)	42.4
Ending balance	(600.2)	(579.1)	(501.9)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	1.7
Cumulative Effect of New Accounting Principle in Period of Adoption				(1.2)	0.0
Other comprehensive income (loss) before reclassifications	(5.1)
Net other comprehensive income (loss)	(2.9)
Ending balance	(2.4)	1.7
Cash Flow Hedges
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance		1.6	4.9
Other comprehensive income (loss) before reclassifications		5.4	(2.5)
Amounts reclassified from accumulated other comprehensive loss	2.2	(5.3)	(0.8)
Net other comprehensive income (loss)		0.1	(3.3)
Ending balance			1.6
Pension and Other Post-retirement Items
Accumulated Other Comprehensive Loss [Roll Forward]
Beginning balance	(24.7)	(29.1)	(32.1)
Cumulative Effect of New Accounting Principle in Period of Adoption				$ 0.0	$ 0.0
Other comprehensive income (loss) before reclassifications	(10.7)	3.6	1.8
Amounts reclassified from accumulated other comprehensive loss	(0.3)	0.8	1.2
Net other comprehensive income (loss)	(11.0)	4.4	3.0
Ending balance	(35.7)	(24.7)	(29.1)
Accumulated Other Comprehensive (Loss) Income
Accumulated Other Comprehensive Loss [Roll Forward]
Cumulative Effect of New Accounting Principle in Period of Adoption	(5.0)	(24.2)
Net other comprehensive income (loss)	$ (31.2)	$ (48.5)	$ 42.1