Financial Instruments Assets and Liabilities Measured on Recurring Basis (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Jun. 29, 2014	Dec. 31, 2013
Footnotes to selected financial assets and liabilities:
Fair value of long-term debt	$ 37,000	$ 35,100
Not Designated as Hedging Instrument [Member] | Currency Swap [Member]
Footnotes to selected financial assets and liabilities:
Instruments used as offsets (assets)	14	30
Instruments used as offsets (liabilities)	90	76
Not Designated as Hedging Instrument [Member] | Foreign currency forward-exchange contracts [Member]
Footnotes to selected financial assets and liabilities:
Instruments used as offsets (assets)	61	66
Instruments used as offsets (liabilities)	57	77
Not Designated as Hedging Instrument [Member] | Interest rate swaps [Member]
Footnotes to selected financial assets and liabilities:
Instruments used as offsets (assets)		38
Designated as Hedging Instrument [Member] | Foreign Currency Long Term Debt [Member]
Footnotes to selected financial assets and liabilities:
Fair value of long-term debt	$ 669	$ 651
Maximum [Member] | Fair Value, Measurements, Recurring [Member]
Footnotes to selected financial assets and liabilities:
Percentage of financial assets and liabilities measured at fair value inputs Level 1 and Level 3 inputs	1.00%