Financial Instruments - Balance Sheet Grouping (Detail) - USD ($) $ in Millions		Apr. 03, 2016	Dec. 31, 2015
Assets
Selected financial assets		$ 33,705	$ 38,157
Liabilities
Selected financial liabilities		41,122	40,608
Cash and Cash Equivalents [Member]
Assets
Selected financial assets		809	978
Short-term Investments [Member]
Assets
Selected financial assets		16,882	19,649
Long-term Investments [Member]
Assets
Selected financial assets		14,146	15,999
Other Current Assets [Member]
Assets
Selected financial assets	[1]	390	587
Other Noncurrent Assets [Member]
Assets
Selected financial assets	[2]	1,478	944
Short-Term Borrowings, Including Current Portion of Long-Term Debt [Member]
Liabilities
Selected financial liabilities	[3]	11,546	10,159
Other Current Liabilities [Member]
Liabilities
Selected financial liabilities	[4]	862	645
Long-term debt [Member]
Liabilities
Selected financial liabilities	[3]	27,824	28,740
Other Noncurrent Liabilities [Member]
Liabilities
Selected financial liabilities	[5]	$ 890	$ 1,064

[1] As of April 3, 2016, derivative instruments at fair value include interest rate swaps ($5 million), foreign currency swaps ($62 million) and foreign currency forward-exchange contracts ($323 million) and, as of December 31, 2015, include interest rate swaps ($2 million), foreign currency swaps ($46 million) and foreign currency forward-exchange contracts ($538 million).

[2] As of April 3, 2016, derivative instruments at fair value include interest rate swaps ($1,428 million), foreign currency swaps ($41 million) and foreign currency forward-exchange contracts ($9 million) and, as of December 31, 2015, include interest rate swaps ($835 million), foreign currency swaps ($89 million) and foreign currency forward-exchange contracts ($20 million).

[3] We adopted a new standard as of January 1, 2016 that changed the presentation of debt issuance costs related to a recognized debt liability as a direct deduction from the carrying value of that associated debt, consistent with the presentation of a debt discount. The update does not impact the measurement or recognition of debt issuance costs. As of April 3, 2016, debt issuance costs are $76 million and are presented as contra-liabilities to Short-term borrowings, including current portion of long-term debt ($1 million) and Long-term debt ($75 million). In the December 31, 2015 condensed consolidated balance sheet, we have reclassified debt issuance costs of $79 million ($1 million from Other current assets and $79 million from Other noncurrent assets) and have presented them as contra-liabilities to Short-term borrowings, including current portion of long-term debt ($1 million) and Long-term debt ($79 million) to conform to the current period presentation.

[4] As of April 3, 2016, derivative instruments at fair value include interest rate swaps ($5 million), foreign currency swaps ($454 million) and foreign currency forward-exchange contracts ($403 million) and, as of December 31, 2015, include interest rate swaps ($5 million), foreign currency swaps ($560 million) and foreign currency forward-exchange contracts ($80 million).

[5] As of April 3, 2016, derivative instruments at fair value include interest rate swaps ($4 million), foreign currency swaps ($857 million) and foreign currency forward-exchange contracts ($29 million) and, as of December 31, 2015, include interest rate swaps ($134 million), foreign currency swaps ($928 million) and foreign currency forward-exchange contracts ($1 million).