Fixed Assets - Property, Plant and Equipment (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Property Plant And Equipment [Line Items]
Land	$ 394	$ 366
Buildings & improvements	3,534	3,209
Machinery & equipment	29,332	27,690
Seismic vessels	1,904	1,903
Property, plant and equipment	35,164	33,168
Less accumulated depreciation	(20,068)	(18,388)
Fixed assets less accumulated depreciation	$ 15,096	$ 14,780	$ 12,993