The maximum percentage of gross trade receivables from one customer at balance sheet date.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Nominal or face amount used to calculate payment on derivative.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Description of payment terms in contract with customer. Includes, but is not limited to, timing of payment, existence of financing component, variability of consideration and constraint on variable consideration.

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Description of timing for satisfying performance obligation in contract with customer. Includes, but is not limited to, as services are rendered, and upon shipment, delivery or completion of service.

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Revenue (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
Revenue (Details) $ in Millions	Sep. 30, 2026 USD ($) Division Customers	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) Division Customers	Sep. 30, 2025 USD ($)	Dec. 31, 2025 USD ($) Customers
Disaggregation of Revenue [Line Items]
Number of Operating Segments \| Division	2		2
Number of Reportable Segments \| Division	2		2
Revenue	$ 5,703	$ 5,600	$ 16,819	$ 16,527
Revenue, Performance Obligation, Description of Timing			one year
NumberOfCustomersExceedReceivablesThreshold \| Customers	0		0		0
Concentration Risk [Line Items]
Maximum Percentage Gross Trade Receivables From One Customer	10.00%		10.00%		10.00%
CDS Contracts Aggregate
Disaggregation of Revenue [Line Items]
Derivative, Notional Amount	$ 0		$ 0		$ 592
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	2,160	2,364	6,572	6,859
Latin America [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,122	996	3,335	2,869
Europe/Africa/CIS [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,016	828	2,891	2,423
Middle East/Asia [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,405	1,412	4,021	4,376
Completion And Production [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,089	3,223	9,307	9,514
Drilling And Evaluation [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 2,614	$ 2,377	$ 7,512	$ 7,013
Minimum [Member]
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Description of Payment Terms	20		20
Maximum [Member]
Disaggregation of Revenue [Line Items]
Revenue, Performance Obligation, Description of Payment Terms	60		60
Revenue Benchmark [Member] \| UNITED STATES \| Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage			37.00%	39.00%
Accounts Receivable [Member] \| UNITED STATES \| Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage			28.00%		31.00%
Accounts Receivable [Member] \| MEXICO \| Geographic Concentration Risk [Member]
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage			10.00%		8.00%
Accounts Receivable [Member] \| MEXICO \| Customer Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration Risk, Percentage			8.00%		7.00%