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Charges and Credits - Additional Information (Detail) - USD ($)
shares in Millions
3 Months Ended 6 Months Ended
Dec. 31, 2023
Jun. 30, 2023
Jun. 30, 2022
Mar. 31, 2022
Jun. 30, 2022
Charges And Credits [Line Items]          
Received proceeds from sale of shares     $ 120,000,000    
Gains on sales of businesses     $ 43,000,000    
Charges and credits, Tax   $ 0     $ 266,000,000
Liberty Energy Inc          
Charges And Credits [Line Items]          
Shares issued 9.0   26.5 7.2  
Received proceeds from sale of shares $ 137,000,000   $ 429,000,000 $ 84,000,000  
Gains on sales of businesses $ 36,000,000   $ 216,000,000 $ 26,000,000