Income Tax - Components of Consolidated Income Taxes (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Current:
United States — Federal	$ 131	$ 203	$ 277	$ 319
United States — State	12	20	19	35
Outside United States	355	298	691	546
Current Income Tax Expense (Benefit), Total	498	521	987	900
Deferred:
United States — Federal	4	(42)	11	(24)
United States — State	3	(3)	2	(3)
Outside United States	1	(7)	(26)	2
Valuation allowance		(20)		(20)
Deferred income taxes	8	(72)	(13)	(45)
Consolidated taxes on income	$ 506	$ 449	$ 974	$ 855