Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Dec. 29, 2018	Dec. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	$ (588.1)	$ (521.7)	$ (602.1)	$ (529.4)
Cumulative Effect of New Accounting Principle in Period of Adoption	7.1
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	18.8	7.7
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.2	0.0
Other Comprehensive Income (Loss), Net of Tax	19.0	7.7
Gain (Loss) Reclassification Adjustment From AOCI On Derivatives Before Tax	(0.5)	0.1
Gain (Loss) Reclassification Adjustment From AOCI On Derivatives, Tax	(0.2)	0.2
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, prior service benefit, before tax	0.3	0.4
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, actuarial losses, before tax		(0.1)
Amounts reclassified from accumulated other comprehenesive loss, pension and other post-retirement items, settlement or curtailment, before tax		(0.1)
Amounts reclassified from accumulated other comprehensive loss, pension and other post-retirement items, tax	(0.2)	(0.1)
Foreign Currency Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(562.2)	(491.8)	(579.1)	(501.9)
Cumulative Effect of New Accounting Principle in Period of Adoption	(3.8)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	20.7	10.1
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.0	0.0
Other Comprehensive Income (Loss), Net of Tax	20.7	10.1
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(1.3)	0.9	1.7	1.6
Cumulative Effect of New Accounting Principle in Period of Adoption	(1.2)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(2.1)	(0.8)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0.3	0.1
Other Comprehensive Income (Loss), Net of Tax	(1.8)	(0.7)
Pension and Other Post-retirement Items
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss	(24.6)	(30.8)	$ (24.7)	$ (29.1)
Cumulative Effect of New Accounting Principle in Period of Adoption	0.0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0.2	(1.6)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	(0.1)	(0.1)
Other Comprehensive Income (Loss), Net of Tax	0.1	$ (1.7)
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cumulative Effect of New Accounting Principle in Period of Adoption	$ (5.0)