Acquisitions and Divestitures - Components of Loss of Business Divestitures Included in Statements of Operations (Detail) - USD ($) $ in Millions		3 Months Ended			9 Months Ended
	May. 29, 2015	Sep. 25, 2015	Jun. 26, 2015	Mar. 27, 2015	Sep. 25, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total gain (loss) related to the business divestitures		$ (9)			$ (29)
Non-cash impairment charge related to MSI assets held for sale		(491)			(491)
Tinsley Product Line [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total gain (loss) related to the business divestitures		(8)			(8)
Broadcast Sports International, LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total gain (loss) related to the business divestitures		$ (1)			(4)
MSI [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total gain (loss) related to the business divestitures	$ (4)		$ 4		4
Non-cash impairment charge related to MSI assets held for sale				$ (17)	(17)
MSI [Member] | Foreign Currency Forward Contracts [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Loss on a forward contract to sell Euro proceeds from MSI divestiture					$ (4)