Segment Information - Segment Financial Data (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Revenues:
Total revenues	$ 17,693	$ 10,642	$ 30,162	$ 22,119
Significant segment expenses:
Purchases and related costs	(16,556)	(9,758)	(28,049)	(20,277)
Field operating costs	(328)	(286)	(628)	(585)
Segment general and administrative expenses	(110)	(82)	(192)	(168)
Total significant segment expenses	(16,994)	(10,126)	(28,869)	(21,030)
Equity earnings in unconsolidated entities	89	94	178	196
Other segment items:
Total other segment items	(94)	(40)	(204)	(160)
Segment Adjusted EBITDA	694	570	1,267	1,125
Investment and acquisition capital expenditures	155	218	326	1,002
Maintenance capital expenditures	38	44	73	77
Investments in unconsolidated entities	2,817		2,817		$ 2,846
Product sales revenues
Revenues:
Total revenues	17,221	10,197	29,246	21,243
Services
Revenues:
Total revenues	472	445	916	876
Operating Segments
Revenues:
Total revenues	17,782	10,648	30,370	22,128
Operating Segments \| Crude Oil
Revenues:
Total revenues	17,760	10,622	30,309	22,061
Significant segment expenses:
Purchases and related costs	(16,632)	(9,742)	(28,211)	(20,231)
Field operating costs	(325)	(279)	(616)	(571)
Segment general and administrative expenses	(108)	(75)	(184)	(155)
Total significant segment expenses	(17,065)	(10,096)	(29,011)	(20,957)
Equity earnings in unconsolidated entities	89	94	178	196
Other segment items:
Depreciation and amortization of unconsolidated entities	21	20	42	40
Derivative activities and inventory valuation adjustments	(74)	52	56	28
Long-term inventory costing adjustments	67	17	(45)	18
Deficiencies under minimum volume commitments, net	(4)	(9)	(36)	(16)
Equity-indexed compensation expense	10	8	20	18
Foreign currency revaluation	(8)	9	(13)	9
Impact from exit of Canadian NGL Business	34		34
Transaction-related expenses		3		8
Segment amounts attributable to noncontrolling interests	(140)	(140)	(262)	(265)
Total other segment items	(94)	(40)	(204)	(160)
Segment Adjusted EBITDA	690	580	1,272	1,140
Investment and acquisition capital expenditures	155	218	326	1,002
Maintenance capital expenditures	38	43	72	74
Investments in unconsolidated entities	2,817		2,817		2,846
Operating Segments \| Crude Oil \| Product sales revenues
Revenues:
Total revenues	17,290	10,178	29,396	21,185
Operating Segments \| Crude Oil \| Services
Revenues:
Total revenues	470	444	913	876
Operating Segments \| NGL
Revenues:
Total revenues	22	26	61	67
Significant segment expenses:
Purchases and related costs	(13)	(22)	(46)	(55)
Field operating costs	(3)	(7)	(12)	(14)
Segment general and administrative expenses	(2)	(7)	(8)	(13)
Total significant segment expenses	(18)	(36)	(66)	(82)
Other segment items:
Depreciation and amortization of unconsolidated entities	0
Derivative activities and inventory valuation adjustments	0
Long-term inventory costing adjustments	0
Impact from exit of Canadian NGL Business	0		0
Total other segment items	0	0	0	0
Segment Adjusted EBITDA	4	(10)	(5)	(15)
Maintenance capital expenditures	0	1	1	3
Investments in unconsolidated entities	0		0		$ 0
Operating Segments \| NGL \| Product sales revenues
Revenues:
Total revenues	20	24	58	66
Operating Segments \| NGL \| Services
Revenues:
Total revenues	2	2	3	1
Intersegment Elimination
Revenues:
Total revenues	(89)	(6)	(208)	(9)
Significant segment expenses:
Purchases and related costs	89	6	208	9
Field operating costs	0
Segment general and administrative expenses	0
Total significant segment expenses	89	6	208	9
Intersegment Elimination \| Product sales revenues
Revenues:
Total revenues	$ (89)	(5)	$ (208)	(8)
Intersegment Elimination \| Services
Revenues:
Total revenues		$ (1)		$ (1)

Includes the impact of amounts billed to counterparties for their deficiency obligation, net of applicable amounts subsequently recognized into revenue. Certain agreements require counterparties to deliver, transport or throughput a minimum volume over an agreed upon period. Substantially all of such agreements were entered into with counterparties to economically support the return on the reporting entity's capital expenditure necessary to construct the related asset. Some of these agreements include make-up rights if the minimum volume is not met. A receivable from the counterparty is recorded in the period that services are provided or when the transaction occurs, including amounts for deficiency obligations from counterparties associated with minimum volume commitments. If a counterparty has a make-up right associated with a deficiency, the revenue attributable to the counterparty’s make-up right is deferred and is subsequently recognized at the earlier of when the deficiency volume is delivered or shipped, when the make-up right expires or when it is determined that the counterparty’s ability to utilize the make-up right is remote.

No definition available.