Derivative Financial Instruments - Location of the Company's Derivative Instruments Recorded at Fair Value on the Condensed Consolidated Balance Sheets (Parenthetical) (Detail) In Millions, unless otherwise specified	Mar. 27, 2015 Other Current Liabilities [Member] USD ($)	Dec. 31, 2014 Other Current Liabilities [Member] USD ($)	Mar. 27, 2015 Other Current Assets [Member] USD ($)	Dec. 31, 2014 Other Current Assets [Member] USD ($)	Mar. 27, 2015 MSI [Member] Foreign Currency Forward Contracts [Member] EUR (€)	Mar. 27, 2015 Designated as Hedging Instruments [Member] Other Current Liabilities [Member] Foreign Currency Forward Contracts [Member] USD ($)	Dec. 31, 2014 Designated as Hedging Instruments [Member] Other Current Liabilities [Member] Foreign Currency Forward Contracts [Member] USD ($)	Mar. 27, 2015 Designated as Hedging Instruments [Member] Other Current Assets [Member] Foreign Currency Forward Contracts [Member] USD ($)	Dec. 31, 2014 Designated as Hedging Instruments [Member] Other Current Assets [Member] Foreign Currency Forward Contracts [Member] USD ($)	Mar. 27, 2015 Designated as Hedging Instruments [Member] Assets Held for Sale [Member] Other Current Liabilities [Member] USD ($)	Dec. 31, 2014 Designated as Hedging Instruments [Member] Assets Held for Sale [Member] Other Current Liabilities [Member] USD ($)	Mar. 27, 2015 Designated as Hedging Instruments [Member] Assets Held for Sale [Member] Other Current Assets [Member] USD ($)	Dec. 31, 2014 Designated as Hedging Instruments [Member] Assets Held for Sale [Member] Other Current Assets [Member] USD ($)
Derivatives, Fair Value [Line Items]
Derivative assets held for sale			$ 7	$ 4				$ 7	$ 4			$ 4	$ 2
Derivative liabilities held for sale	21	10				16	10			2	2
Forward contract to sell estimated proceeds from divestiture					€ 285