SUPPLEMENTAL INFORMATION ON OIL AND NATURAL GAS OPERATIONS (Unaudited) - Capitalized Oil and Natural Gas Costs (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Oil and natural gas properties:
Proved properties	$ 16,575	$ 12,629
Unproved properties	9,207	9,670
Total oil and natural gas properties	25,782	22,299
Accumulated depreciation, depletion, amortization	(2,995)	(1,599)
Accumulated impairment	(1,934)	(1,144)
Oil and natural gas properties, net	$ 20,853	$ 19,556

Capitalized costs of accumulated impairment for oil and natural gas properties

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- Definition

The sum of capitalized costs relating to oil and gas producing activities before accounting for accumulated depreciation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61901-109447

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Net amount of capitalized costs relating to oil and gas producing activities.

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- Definition

Capitalized costs of proved properties incurred for any combination mineral interests acquisitions; wells and related equipment; support equipment and facilities; and uncompleted wells and equipment and other costs not previously disclosed within this table.

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Capitalized costs of unproved properties incurred for any combination mineral interests acquisitions and other costs not previously disclosed within this table.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-URI http://asc.fasb.org/topic&trid=2145477

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- Definition

Depletion of oil and gas property carried under the full cost method.

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