| Name | ProductOrServiceAxis |
|---|---|
| Namespace | http://fasb.org/srt/2021-01-31 |
| Prefix | srt |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrldt:dimensionItem |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Name | Value | Role |
|---|---|---|
| PublishDate | 2020-01 | http://fasb.org/us-gaap/role/tin/resource |
| Source | Taxonomy Implementation Guide | http://fasb.org/us-gaap/role/tin/resource |
| SourceName | Revenue from Contracts with Customers | http://fasb.org/us-gaap/role/tin/resource |
| inlineURI | https://xbrl.fasb.org/ix/?doc=../impdocs/Rev_TIG/Revenue.htm | http://fasb.org/us-gaap/role/tin/resource |
| pdfURI | https://www.fasb.org/revenue_2020 | http://fasb.org/us-gaap/role/tin/resource |
| SourceName | Reference Project:Taxonomy Technical Improvement | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2020 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2019-11 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| SourceName | Long-duration Insurance | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-08 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2018-12 | http://fasb.org/srt/role/changeNote/changeNote |
| elementCreationTaxonomyVersion | 2008 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/exampleRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/exampleRef |
| Topic | 606 | http://www.xbrl.org/2003/role/exampleRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/exampleRef |
| Section | 55 | http://www.xbrl.org/2003/role/exampleRef |
| Paragraph | 91 | http://www.xbrl.org/2003/role/exampleRef |
| Subparagraph | (a) | http://www.xbrl.org/2003/role/exampleRef |
| URI | http://asc.fasb.org/extlink&oid=123410239&loc=SL49130690-203046-203046 | http://www.xbrl.org/2003/role/exampleRef |
| Publisher | FASB | http://www.xbrl.org/2003/role/exampleRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/exampleRef |
| Topic | 944 | http://www.xbrl.org/2003/role/exampleRef |
| SubTopic | 40 | http://www.xbrl.org/2003/role/exampleRef |
| Section | 55 | http://www.xbrl.org/2003/role/exampleRef |
| Paragraph | 13H | http://www.xbrl.org/2003/role/exampleRef |
| Subparagraph | (a) | http://www.xbrl.org/2003/role/exampleRef |
| URI | http://asc.fasb.org/extlink&oid=124504033&loc=SL117783719-158441 | http://www.xbrl.org/2003/role/exampleRef |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 606 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 10 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 50 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 5 | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Publisher | FASB | http://www.xbrl.org/2009/role/commonPracticeRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2009/role/commonPracticeRef |
| Topic | 944 | http://www.xbrl.org/2009/role/commonPracticeRef |
| SubTopic | 40 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Section | 50 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Paragraph | 4H | http://www.xbrl.org/2009/role/commonPracticeRef |
| URI | http://asc.fasb.org/extlink&oid=116884468&loc=SL65671331-158438 | http://www.xbrl.org/2009/role/commonPracticeRef |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 280 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | 50 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 40 | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 | http://www.xbrl.org/2003/role/disclosureRef |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 924 | http://www.xbrl.org/2003/role/disclosureRef |
| SubTopic | 10 | http://www.xbrl.org/2003/role/disclosureRef |
| Section | S99 | http://www.xbrl.org/2003/role/disclosureRef |
| Paragraph | 1 | http://www.xbrl.org/2003/role/disclosureRef |
| Subparagraph | (SAB Topic 11.L) | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:AdditionalLiabilityLongDurationInsuranceProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:DeferredPolicyAcquisitionCostAndPresentValueOfFutureInsuranceProfitProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:DeferredPolicyAcquisitionCostProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:DeferredSaleInducementCostProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:LiabilityForFuturePolicyBenefitProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:MarketRiskBenefitProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:PolicyholderAccountBalanceProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:PresentValueOfFutureInsuranceProfitProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:RevenueFromContractWithCustomerProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:SeparateAccountLiabilityProductAndServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:ShortDurationInsuranceContractsProductsAndServicesExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:TypeOfCostGoodOrServiceExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:TypeOfRevenueExtensibleList | identification | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote | |
us-gaap:CollaborativeArrangementProductAgreementMember | dep-concept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:CostOfGoodsSoldExcludingDepreciationDepletionAndAmortization | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:CostOfDomesticRegulatedGasRevenue | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:CostOfServicesOilAndGas | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:CostOfServicesExcludingDepreciationDepletionAndAmortization | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated | |
us-gaap:NoninterestExpenseDistributionAndServicingFees | dep-dimensionallyQualifiedConcept-deprecatedConcept | http://fasb.org/us-gaap/role/deprecated/deprecated |