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SEGMENTS - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) segment fleet	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Number of operating segments | segment	2
Number of fleets | fleet	1
Operating revenue	$ 61,643	$ 58,048	$ 50,582
Intersegment Sales/Other
Business Acquisition [Line Items]
Operating revenue	(3,125)	(4,193)	(5,729)
Intersegment Sales/Other | Exchanged products
Business Acquisition [Line Items]
Operating revenue	$ (1,473)	$ (2,354)	$ (3,475)

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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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