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Suspended Wells Changes in Well Costs Narrative (Details) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Capitalized Exploratory Well Costs | $ 1,020,000,000 | [1] | $ 856,000,000 | $ 853,000,000 | $ 1,063,000,000
AUSTRALIA |  |  |  |  |
Capitalized Exploratory Well Costs | $ 313,000,000 |  |  |  |
[1] | *Includes $ 313 million of assets held for sale in Australia.

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- Definition The amount of capitalized exploratory well costs that is pending the determination of proved reserves. This does not include amounts that were capitalized and subsequently expensed in the same annual period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=68064819&loc=SL6806780-109447 + Details
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- Details
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