Schedule of Property Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Mar. 29, 2015	Dec. 28, 2014
Property, Plant and Equipment [Line Items]
Land and improvements	$ 19.8us-gaap_Land	$ 19.8us-gaap_Land
Buildings and improvements	399.6us-gaap_BuildingsAndImprovementsGross	397.5us-gaap_BuildingsAndImprovementsGross
Machinery and equipment	1,895.4us-gaap_MachineryAndEquipmentGross	1,902.4us-gaap_MachineryAndEquipmentGross
Construction in progress	48.3us-gaap_ConstructionInProgressGross	52.1us-gaap_ConstructionInProgressGross
Total property, plant and equipment	2,363.1us-gaap_PropertyPlantAndEquipmentGross	2,371.8us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation	1,757.2	1,744.1
Total property, plant, and equipment, net	$ 605.9us-gaap_PropertyPlantAndEquipmentNet	$ 627.7us-gaap_PropertyPlantAndEquipmentNet

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 of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Amount of structure or a modification to a structure under construction. Includes recently completed structures or modifications to structures that have not been placed into service.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Amount before accumulated depreciation of tangible personal property used to produce goods and services, including, but is not limited to, tools, dies and molds, computer and office equipment.

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