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SEGMENTS - SEGMENT INVESTMENTS AND EXPENDITURES (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Segment Information
PP&E Additions	$ 5,851	$ 5,371
Investments in unconsolidated entities	2,989	3,195
Total Assets	83,472	85,803	$ 85,445
Operating segments | Oil and gas
Segment Information
PP&E Additions	4,428	4,152
Investments in unconsolidated entities	126	97
Total Assets	60,547	64,042
Operating segments | Chemical
Segment Information
PP&E Additions	799	432
Investments in unconsolidated entities	484	524
Total Assets	5,770	4,943
Operating segments | Midstream and marketing
Segment Information
PP&E Additions	553	686
Investments in unconsolidated entities	2,379	2,574
Total Assets	13,786	14,212
Corporate and eliminations
Segment Information
PP&E Additions	71	101
Investments in unconsolidated entities	0	0
Total Assets	$ 3,369	$ 2,606

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