Goodwill and Identifiable Intangible Assets - Identifiable Intangible Assets (Detail) - USD ($) $ in Millions	9 Months Ended
	Sep. 25, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	17 years
Gross Carrying Amount	$ 674	$ 632
Accumulated Amortization	418	389
Net Carrying Amount	$ 256	243
Customer Contractual Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	19 years
Gross Carrying Amount	$ 461	440
Accumulated Amortization	283	262
Net Carrying Amount	$ 178	178
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	11 years
Gross Carrying Amount	$ 186	165
Accumulated Amortization	118	111
Net Carrying Amount	$ 68	54
Other [Member]
Finite-Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (in years)	18 years
Gross Carrying Amount	$ 27	27
Accumulated Amortization	17	16
Net Carrying Amount	$ 10	$ 11