Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions		3 Months Ended				9 Months Ended		12 Months Ended
		Sep. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Cash flows from operating activities:
Net income (loss)		$ 20	$ 203	$ 580	$ 609	$ 703	$ 1,902
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation, depletion and amortization		285		270		846	804
Changes in assets and liabilities:
Receivables						(13)	(516)
Accounts payable						(60)	(145)
Inventories						(38)	16
Other operating activities						(425)	232
Total cash flows provided by operating activities						1,761	2,409
Cash flows from investing activities:
Capital expenditures		(261)		(339)		(917)	(1,016)
Payments to Acquire Marketable Securities						(128)	(320)
Proceeds from Sale of Equity Method Investments						120	0
Proceeds from sales of property, plant and equipment						138	149
Payments to Acquire Equity Method Investments						(343)	(101)
Other investing activities						(49)	(32)
Total cash flows used in investing activities						(1,126)	(1,210)
Cash flows from financing activities:
Dividends to shareholders						(436)	(452)
Payments for Repurchase of Common Stock						757	696
Other financing activities						(23)	(37)
Total cash flows used in financing activities						(1,216)	(1,185)
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation						(11)	(100)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total						(592)	(86)
Cash and equivalents at beginning of period			$ 2,618		$ 2,264	2,618	2,264	$ 2,264
Cash and equivalents at end of period		$ 2,026		2,178		2,026	2,178	$ 2,618
Cash payments during the period for:
Interest						330	336
Income taxes						$ 518	369
Maximum Percentage Gross Trade Receivables From One Customer		10.00%				10.00%		10.00%
Proceeds from Sale and Maturity of Marketable Securities						$ 228	137
Payments to Acquire Businesses, Net of Cash Acquired						(175)	(27)
Impairments and other charges	[1]	$ 392		$ 116		$ 748	$ 116
UNITED STATES | Accounts Receivable [Member] | Geographic Concentration Risk [Member]
Cash payments during the period for:
Concentration Risk, Percentage						32.00%		30.00%
MEXICO | Accounts Receivable [Member] | Geographic Concentration Risk [Member]
Cash payments during the period for:
Concentration Risk, Percentage						12.00%		11.00%

[1] For the three months ended September 30, 2025, the amount includes a $252 million charge attributable to Completion and Production, a $140 million charge attributable to Drilling and Evaluation segment. For the nine months ended September 30, 2025, the amount included a $453 million charge attributable to Completion and Production, a $225 million charge attributable to Drilling and Evaluation, and a $70 million charge attributable to Corporate and other. For the three and nine months ended September 30, 2024, the amount included 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.