Discontinued Operations and Divestitures - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
Sep. 27, 2014	Mar. 29, 2014	Sep. 28, 2013	Mar. 30, 2013	Sep. 27, 2014	Sep. 28, 2013
Business Acquisition [Line Items]
Discontinued Operation, Tax (Expense) Benefit from Provision for (Gain) Loss on Disposal	$ 12.3		$ 0		$ 14.7	$ 0
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		(5.6)
Discontinued Operation, Provision for Loss (Gain) on Disposal, Net of Tax	380.1		0		385.7	0
Cash sales price of business					30.0
Gain on sale of business	0		0.1	16.7	(0.2)	16.8
Goodwill written off from sale						5.3
Discontinued Operation, Tax Effect of Income (Loss) from Disposal of Discontinued Operation		$ 2.4

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Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

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Amount after tax of loss recognized for the write-down to fair value, less cost to sell, of a disposal group. Includes after tax gain for a subsequent increase in fair value (less cost to sell) up to the cumulative loss previously recognized through write-downs.

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Amount of tax expense or benefit on gain (loss), not previously recognized, resulting from the sale of a business component.

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Tax benefit from provision recognizing a loss for initial, or subsequent, write-down to fair value (less cost to sell) of a of a disposal group that is classified as a component of the entity, which remains unsold as of the reporting date. May include a tax on the (gain) for the recognition of a subsequent increase in fair value (less cost to sell), but not in excess of the cumulative loss previously recognized through write-downs.

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Gain (loss) from sale or disposal of an organization or integrated set of activities (for example, but not limited to, a partnership or corporation) engaged in providing a product or service in a commercial, industrial, or professional environment.

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Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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