Financial Instruments - Location and Pretax Gain or Loss Amounts for Derivatives (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Derivatives not designated in a hedging relationship [Member] | Foreign exchange contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss (gain) recognized in Other (income) expense, net on derivatives (1)	$ 183	[1]	$ 382	[1]	$ (113)	[1]
Amount of loss recognized in Sales	8		30		0
Derivatives designated in fair value hedging relationships [Member] | Interest rate swap contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss (gain) recognized in Other (income) expense, net on derivatives (1)	12	[2]	0	[2]	(196)	[2]
Amount of (gain) loss recognized in Other (income) expense, net on hedged item (1)	(14)	[2]	0	[2]	196	[2]
Derivatives designated in foreign currency cash flow hedging relationships [Member] | Foreign exchange contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of loss reclassified from AOCI to Sales	45		50		85
Amount of (gain) loss recognized in OCI on derivatives	(306)		204		143
Derivatives designated in foreign currency net investment hedging relationships [Member] | Foreign exchange contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (gain) loss recognized in OCI on derivatives	(363)		(208)		122
Amount of gain recognized in Other (income) expense, net on derivatives (2)	$ (10)	[3]	$ (20)	[3]	$ (10)	[3]

[1] These derivative contracts mitigate changes in the value of remeasured foreign currency denominated monetary assets and liabilities attributable to changes in foreign currency exchange rates.

[2] There was $2 million of ineffectiveness on the hedge during 2013.

[3] There was no ineffectiveness on the hedge. Represents the amount excluded from hedge effectiveness testing.