Impairments and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Restructuring Cost and Reserve [Line Items]
Operating lease right-of-use assets		$ 1,001		$ 1,001		$ 1,088
Current portion of operating lease liabilities		251		251		$ 262
Gain (Loss) on Investments		(43)		(43)
Other		12		12
Impairments and other charges	[1]	116	$ 0	116	$ 0
Severance costs		63		63
Impairment Charge on Reclassified Assets		49		49
Self Insurance Reserve, Current		35		35
Completion And Production [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges		45		45
Drilling And Evaluation [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges		34		34
Corporate Segment and Other Operating Segment [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges		$ 37		$ 37

[1] For the three and nine months ended September 30, 2024, the amount includes a $45 million charge attributable to Completion and Production, a $34 million charge attributable to Drilling and Evaluation, and a $37 million charge attributable to Corporate and other. See Note 2 for further discussion on impairments and other charges.