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Goodwill - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Dec. 31, 2021
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | $ 12,968 | $ 16,042 | $ 12,980
Impairment (see Note 3) |  | (3,070) |
Acquisitions |  |  | 18
Impact of changes in exchange rates and other | 12 | (4) | (8)
Goodwill, Ending Balance | 12,980 | 12,968 | 12,990
Production Systems |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 854 |  | 853
Impact of changes in exchange rates and other | (1) |  |
Goodwill, Ending Balance | 853 | 854 | 853
Operating Segments | Reservoir Characterization |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 4,560 | 4,560 |
Goodwill, Ending Balance |  | 4,560 |
Operating Segments | Drilling |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 5,443 | 7,092 |
Impairment (see Note 3) |  | (1,659) |
Impact of changes in exchange rates and other |  | 10 |
Goodwill, Ending Balance |  | 5,443 |
Operating Segments | Production |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 2,704 | 3,949 |
Impairment (see Note 3) |  | (1,228) |
Impact of changes in exchange rates and other |  | (17) |
Goodwill, Ending Balance |  | 2,704 |
Operating Segments | Cameron |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 261 | 441 |
Impairment (see Note 3) |  | (183) |
Impact of changes in exchange rates and other |  | 3 |
Goodwill, Ending Balance |  | 261 |
Operating Segments | Digital Integration |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 2,041 |  | 2,047
Acquisitions |  |  | 18
Impact of changes in exchange rates and other | 6 |  | (13)
Goodwill, Ending Balance | 2,047 | 2,041 | 2,052
Operating Segments | Reservoir Performance |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 3,806 |  | 3,802
Impact of changes in exchange rates and other | (4) |  | 2
Goodwill, Ending Balance | 3,802 | 3,806 | 3,804
Operating Segments | Well Construction |  |  |
Goodwill [Line Items] |  |  |
Goodwill, Beginning Balance | 6,267 |  | 6,278
Impact of changes in exchange rates and other | 11 |  | 3
Goodwill, Ending Balance | $ 6,278 | $ 6,267 | $ 6,281

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