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Goodwill and Intangible Assets - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Jun. 30, 2019 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  | $ 1,527 | $ 1,493 | $ 2,807
Intangibles, net |  |  | 503 | 527 |
Impairment on equity investment | $ 224 |  |  |  |
Impairment of Intangible Assets, Finite-lived | 209 |  |  |  |
Impairment of property, plant and equipment | 262 |  |  |  |
Impairment of right-of-use assets | 42 |  | $ 0 | 42 | 56
Estimated useful lives of intangible assets, minimum |  |  | 2 years |  |
Estimated useful lives of intangible assets, maximum |  |  | 40 years |  |
Amortization expense, 2021 |  |  | $ 40 |  |
Amortization expense, 2022 |  |  | 33 |  |
Amortization expense, 2023 |  |  | 28 |  |
Amortization expense, 2024 |  |  | 25 |  |
Amortization expense, 2025 |  |  | 23 |  |
Impairment charge on goodwill |  |  | 0 | $ 1,295 | $ 3,509
Impairment of intangible assets, indefinite-lived (excluding goodwill) | $ 83 | $ 103 | 0 |  |
Rig Equipment [Member] |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  | 661 |  |
XL Systems [Member] |  |  |  |  |
Indefinite-lived Intangible Assets [Line Items] |  |  |  |  |
Goodwill |  |  | $ 64 |  |

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