Financial Instruments - Balance Sheet Grouping (Detail) - USD ($) $ in Millions		Oct. 02, 2016	Dec. 31, 2015
Assets
Selected financial assets		$ 24,613	$ 38,157
Liabilities
Selected financial liabilities		45,926	40,608
Cash and Cash Equivalents [Member]
Assets
Selected financial assets		628	978
Short-term Investments [Member]
Assets
Selected financial assets		12,277	19,649
Other Current Assets [Member]
Assets
Selected financial assets	[1]	293	587
Long-term Investments [Member]
Assets
Selected financial assets		9,507	15,999
Other Noncurrent Assets [Member]
Assets
Selected financial assets	[2]	1,907	944
Short-Term Borrowings, Including Current Portion of Long-Term Debt [Member]
Liabilities
Selected financial liabilities	[3]	13,633	10,159
Other Current Liabilities [Member]
Liabilities
Selected financial liabilities	[4]	805	645
Long-term debt [Member]
Liabilities
Selected financial liabilities	[3]	30,437	28,740
Other Noncurrent Liabilities [Member]
Liabilities
Selected financial liabilities	[5]	$ 1,050	$ 1,064

[1] As of October 2, 2016, derivative instruments at fair value include interest rate swaps ($49 million), foreign currency swaps ($67 million) and foreign currency forward-exchange contracts ($177 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 October 2, 2016, derivative instruments at fair value include interest rate swaps ($1.9 billion), foreign currency swaps ($23 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. See Note 1B for additional information.

[4] As of October 2, 2016, derivative instruments at fair value include interest rate swaps ($1 million), foreign currency swaps ($320 million) and foreign currency forward-exchange contracts ($483 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 October 2, 2016, derivative instruments at fair value include interest rate swaps ($2 million), foreign currency swaps ($1.0 billion) and foreign currency forward-exchange contracts ($20 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).