Supplemental Balance Sheet Information (Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Dec. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,008.6	$ 974.4
Accumulated depreciation and amortization	(566.0)	(531.6)
Total property, plant and equipment, net	442.6	442.8
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	59.6	61.4
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	254.7	256.6
Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 694.3	$ 656.4

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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