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Segment Disclosures and Related Information - Sales (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	$ 21,013	$ 11,326	$ 59,936	$ 30,708
Lower 48
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	14,287	7,566	40,302	19,968
Canada
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	1,348	967	4,662	2,636
Intersegment eliminations | Lower 48
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	(2)	(1)	(15)	(5)
Intersegment eliminations | Canada
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	(583)	(406)	(1,960)	(1,063)
Operating Segments
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	21,013	11,326	59,936	30,708
Operating Segments | Alaska
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	1,984	1,395	6,251	3,946
Operating Segments | Lower 48
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	14,285	7,565	40,287	19,963
Operating Segments | Canada
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	765	561	2,702	1,573
Operating Segments | Europe, Middle East and North Africa
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	3,361	1,127	8,602	3,270
Operating Segments | Asia Pacific
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	617	673	2,005	1,880
Operating Segments | Other International
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	0	1	0	4
Corporate and Other
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	1	4	89	72
United States
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	16,269	8,963	46,624	23,978
Canada
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	764	561	2,702	1,573
China
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	273	193	847	519
Indonesia
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	0	231	159	634
Libya
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	317	313	1,099	833
Malaysia
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	345	249	999	727
Norway
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	1,042	678	2,711	1,708
United Kingdom
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	2,002	136	4,792	729
Other foreign countries
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	1	2	3	7
Natural gas
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	8,295	4,099	21,560	11,422
Natural gas liquids
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	989	414	2,909	976
Crude oil
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	10,353	6,433	31,717	16,725
Other
Segment Reporting Information [Line Items]
Consolidated sales and other operating revenues	$ 1,376	$ 380	$ 3,750	$ 1,585

X

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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