Derivative Instruments And Hedging Activity - Additional Information (Detail) (USD $)	6 Months Ended
	Jun. 29, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Fair Value Hedges, Net	$ 0	$ 0
Average maturity of foreign currency forward contracts, in years	1 year
Cash and equivalents	3,841,000,000	5,301,000,000	3,757,000,000	3,296,000,000
Notional forward foreign exchange contracts outstanding	1,400,000,000	1,700,000,000
Derivative Instruments in Hedges, Net Investment in Foreign Operations, Assets, Fair Value, Net	0	0
Maximum
Derivative Instruments, Gain (Loss) [Line Items]
Maturity of fixed-income securities, in years	5 years
Categories of Investments, Marketable Securities, Available-for-sale Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Marketable Securities	$ 0