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Supplementary Information - Summary of Other Assets (Detail) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Segment Reporting [Abstract]    
Investments in APS projects $ 1,786 $ 1,713
Pension and other postretirement 1,034 360
Operating lease, asset 553 710
Multiclient seismic data 154 317
Fair value of hedge contracts 66 427
Other 590 666
Total other assets $ 4,183 $ 4,193