| Name | RefiningAndMarketingRevenue |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:monetaryItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | credit |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Refining and Marketing Revenue (Deprecated 2018-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Revenue related to the downstream oil and gas activities, including the refining of crude oil, as well as the marketing and distribution of crude oil, refined petroleum products, and natural gas. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Name | Value | Role |
|---|---|---|
| DeprecatedDate | 2018-01-31 | http://fasb.org/srt/role/changeNote/changeNote |
| DeprecatedLabel | Element was deprecated because the financial reporting concept can be conveyed dimensionally. | http://fasb.org/srt/role/changeNote/changeNote |
| DeprecationReplacement | srt:ProductOrServiceAxis OilAndGasRefiningAndMarketingMember RevenueFromContractWithCustomerIncludingAssessedTax | http://fasb.org/srt/role/changeNote/changeNote |
| SourceName | Revenue | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2018 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2017-11 | http://fasb.org/srt/role/changeNote/changeNote |
| ElementDeprecated | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2014-09 | http://fasb.org/srt/role/changeNote/changeNote |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:DeprecatedItems | parent-child | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:OilAndGasRefiningAndMarketingMember | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
srt:ProductOrServiceAxis | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:RevenueFromContractWithCustomerIncludingAssessedTax | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |