Multiclient Seismic Data - Change in Carrying Amount of Multiclient Seismic Data (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2017 USD ($)
Multiclient Seismic Data [Abstract]
Balance at December 31, 2016	$ 1,073
Capitalized in period	116
Charged to expense	(100)
Balance at March 31, 2017	$ 1,089