Financial Instruments by Balance Sheet Grouping (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	Jun. 29, 2014		Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets(a)	$ 2,727		$ 3,689
Other noncurrent assets(b)	3,574		3,596
Other current liabilities(c)	9,346		9,972
Other noncurrent liabilities	4,238		4,767
Selected Financial Assets and Liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets(a)	203	[1]	286	[1]
Other noncurrent assets(b)	1,111	[2]	1,225	[2]
Selected Financial Assets and Liabilities [Member] | Foreign currency forward-exchange contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets(a)	122		172
Selected Financial Assets and Liabilities [Member] | Interest rate swaps [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets(a)	73		90
Other noncurrent assets(b)	482		378
Other current liabilities(c)	2
Selected Financial Assets and Liabilities [Member] | Currency Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current assets(a)	8		24
Other noncurrent assets(b)	629		847
Selected Financial Assets and Liabilities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current liabilities(c)	215	[3]	303	[3]
Other noncurrent liabilities	176	[4]	327	[4]
Selected Financial Assets and Liabilities [Member] | Foreign currency forward-exchange contracts [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current liabilities(c)	119		219
Selected Financial Assets and Liabilities [Member] | Interest rate swaps [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other noncurrent liabilities	88		301
Selected Financial Assets and Liabilities [Member] | Currency Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other current liabilities(c)	94		84
Other noncurrent liabilities	$ 88		$ 26

[1] As of June 29, 2014, derivative instruments at fair value include interest rate swaps ($73 million), foreign currency swaps ($8 million) and foreign currency forward-exchange contracts ($122 million) and, as of December 31, 2013, include interest rate swaps ($90 million), foreign currency swaps ($24 million) and foreign currency forward-exchange contracts ($172 million).

[2] As of June 29, 2014, derivative instruments at fair value include interest rate swaps ($482 million) and foreign currency swaps ($629 million) and, as of December 31, 2013, include interest rate swaps ($378 million) and foreign currency swaps ($847 million).

[3] As of June 29, 2014, derivative instruments at fair value include interest rate swaps ($2 million), foreign currency swaps ($94 million) and foreign currency forward-exchange contracts ($119 million) and, as of December 31, 2013, include foreign currency swaps ($84 million) and foreign currency forward-exchange contracts ($219 million).

[4] As of June 29, 2014, derivative instruments at fair value include interest rate swaps ($88 million) and foreign currency swaps ($88 million) and, as of December 31, 2013, include interest rate swaps ($301 million) and foreign currency swaps ($26 million).