Segment Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
Revenues from external customers	$ 15,002	$ 6,667	$ 2,308
Depreciation, depletion and amortization expense	1,174	546	357
Impairments	0	6	2,830
Operating income	7,354	2,635	(2,871)
Interest expense	184	136	94
Total loss on derivatives	(5,259)	(2,436)	224
Gain (Loss) on Early Extinguishment of Debt	(14)	(93)	35
Other income, net	3	5	1
Provision (benefit) for income taxes	51	0	407
Assets	12,926	11,848	5,160
Capital investments	2,209	1,108	899
Merger-related expenses	27	76	41
Increase (decrease) in accrued expenditures between periods	88	70	(3)
Restructuring charges	0	7	16
Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	4,419	1,963	917
Exploration and Production
Segment Reporting Information [Line Items]
Revenues from external customers	10,583	4,701	1,391
Depreciation, depletion and amortization expense			348
Merger-related expenses	27	76	41
Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	4,419	1,966	917
Depreciation, depletion and amortization expense			9
Intersegment Revenues
Segment Reporting Information [Line Items]
Revenues from external customers	10,096	4,162	1,185
Intersegment Revenues | Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	10,102	4,223	1,228
Intersegment Revenues | Exploration and Production
Segment Reporting Information [Line Items]
Revenues from external customers	(6)	(61)	(43)
Intersegment Revenues | Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	10,102	4,223	1,228
Intersegment Revenues | Marketing | Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	(10,100)	(4,200)	(1,200)
Operating Segments | Exploration and Production
Segment Reporting Information [Line Items]
Revenues from external customers	10,577	4,640	1,348
Depreciation, depletion and amortization expense	1,169	537
Impairments		6	2,830
Operating income	7,253	2,583	(2,864)
Interest expense	184	136	94
Total loss on derivatives	(5,257)	(2,437)	224
Gain (Loss) on Early Extinguishment of Debt	0	0	0
Other income, net	3	5	0
Provision (benefit) for income taxes	51		407
Assets	11,473	10,767	4,654
Capital investments	2,196	1,107	899
Restructuring charges		7	16
Operating Segments | Exploration and Production | Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	0	0	0
Operating Segments | Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	14,521	6,189	2,145
Depreciation, depletion and amortization expense	5	9
Impairments		0	0
Operating income	101	52	(7)
Interest expense	0	0	0
Total loss on derivatives	0	0	0
Gain (Loss) on Early Extinguishment of Debt	0	0	0
Other income, net	0	0	0
Provision (benefit) for income taxes	0		0
Assets	1,274	956	381
Capital investments	0	0	0
Operating Segments | Marketing | Marketing
Segment Reporting Information [Line Items]
Revenues from external customers	14,521	6,186	2,145
Other
Segment Reporting Information [Line Items]
Depreciation, depletion and amortization expense	0	0	0
Impairments		0	0
Operating income	0	0	0
Interest expense	0	0	0
Total loss on derivatives	(2)	1	0
Gain (Loss) on Early Extinguishment of Debt	(14)	(93)	35
Other income, net	0	0	1
Provision (benefit) for income taxes	0		0
Assets	179	125	125
Capital investments	$ 13	$ 1	$ 0