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INVESTMENTS AND RELATED-PARTY TRANSACTIONS - Narrative (Details) - USD ($) shares in Millions, $ in Millions	1 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
EQUITY INVESTMENTS
Dividends received as return on investment		$ 705	$ 682	$ 571
NET Power
EQUITY INVESTMENTS
Impairment of equity method investment		401
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| WES
EQUITY INVESTMENTS
Gain on sale	$ 51	$ 301	$ 489
Number of shares sold (in shares)	5.1		19.5	5.1