Financial Instruments - Narrative (Detail) (USD $)						3 Months Ended
	Mar. 30, 2014		Dec. 31, 2013		Mar. 30, 2014 Interest Rate Contract [Member]	Mar. 30, 2014 Derivative Financial Instruments [Member]	Mar. 30, 2014 Senior Unsecured Debt At 6.50 U.K. Pound June 2038 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Commercial Paper	$ 3,700,000,000		$ 3,000,000,000
Derivative Financial Instruments and Hedging Activities
Long-term debt	27,649,000,000	[1],[2],[3]	30,462,000,000	[1],[2],[3]			2,500,000,000
Aggregate notional amount of interest rate derivative financial instruments					14,100,000,000
Derivative, Net Liability Position, Aggregate Fair Value	192,000,000
Posted collateral	225,000,000
Credit Risk Derivatives
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure						2,200,000,000
Securities Received as Collateral						$ 1,200,000,000

[1] Some carrying amounts may include adjustments for discount or premium amortization or for the effect of hedging the interest rate fair value risk associated with certain financial liabilities by interest rate swaps.

[2] Includes foreign currency debt with fair values of $659 million as of March 30, 2014 and $651 million as of December 31, 2013, which are used as hedging instruments.

[3] The fair value of our long-term debt (not including the current portion of long-term debt) is $32.6 billion as of March 30, 2014 and $35.1 billion as of December 31, 2013. The fair value measurements for our long-term debt are based on Level 2 inputs, using a market approach. Generally, the difference between the fair value of our long-term debt and the amount reported on the consolidated balance sheet is due to a decline in relative market interest rates since the debt issuance.The following table provides the classification of these selected financial assets and liabilities in the condensed consolidated balance sheets:(MILLIONS OF DOLLARS) March 30, 2014 December 31, 2013Assets Cash and cash equivalents $1,171 $1,104Short-term investments 31,019 30,225Long-term investments 15,822 16,406Other current assets(a) 132 286Other noncurrent assets(b) 1,308 1,225 $49,452 $49,246Liabilities Short-term borrowings, including current portion of long-term debt $9,319 $6,027Other current liabilities(c) 275 303Long-term debt 27,649 30,462Other noncurrent liabilities(d) 212 327 $37,455 37,119