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Charges and Credits - Additional Information (Detail) - USD ($) shares in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2022
Charges And Credits [Line Items] |  |  |
Charges and credits, Tax | $ 266,000,000 |  | $ 0
Gain On Sale Of Real Estate |  |  |
Charges And Credits [Line Items] |  |  |
Gains on sales of businesses | 43,000,000 |  |
Sold certain real estate and received proceeds | $ 120,000,000 |  |
Liberty Energy Inc |  |  |
Charges And Credits [Line Items] |  |  |
Shares issued | 26.5 | 7.2 |
Received proceeds from sale of shares | $ 429,000,000 | $ 84,000,000 |
Gains on sales of businesses | $ 216,000,000 | $ 26,000,000 |
Percentage of equity ownership interest |  | 12.00% |

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