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Multiclient Seismic Data - Change in Carrying Amount of Multiclient Seismic Data (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Multiclient Seismic Data [Abstract]    
Opening balance $ 601 $ 727
Capitalized in period 231 100
Charged to expense (264) (226)
Ending balance $ 568 $ 601