| Line | Label | Object Class | Period Type | Balance | Report ElementName |
|---|---|---|---|---|---|
| 1 | 250000 - Disclosure - Accounting Changes and Error Corrections | [Network] | http://fasb.org/us-gaap/role/disclosure/AccountingChangesAndErrorCorrections | ||
| 2 | Accounting Changes and Error Corrections [Abstract] | Abstract | us-gaap:AccountingChangesAndErrorCorrectionsAbstract | ||
| 3 | Accounting Changes and Error Corrections [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:AccountingChangesAndErrorCorrectionsTextBlock | |
| 4 | Change in Accounting Estimate [Abstract] | Abstract | us-gaap:ChangeInAccountingEstimateAbstract | ||
| 5 | Schedule of Change in Accounting Estimate [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfChangeInAccountingEstimateTextBlock | |
| 6 | Schedule of Change in Accounting Estimate [Table] | Table | us-gaap:ScheduleOfChangeInAccountingEstimateTable | ||
| 7 | Change in Accounting Estimate by Type [Axis] | Axis | us-gaap:ChangeInAccountingEstimateByTypeAxis | ||
| 8 | Change in Accounting Estimate, Type [Domain] | Member | us-gaap:ChangeInAccountingEstimateTypeDomain | ||
| 9 | Intangible Assets, Amortization Period [Member] | Member | us-gaap:IntangibleAssetsAmortizationPeriodMember | ||
| 10 | Warranty Obligations [Member] | Member | us-gaap:WarrantyObligationsMember | ||
| 11 | Inventory Valuation and Obsolescence [Member] | Member | us-gaap:InventoryValuationAndObsolescenceMember | ||
| 12 | Uncollectible Receivables [Member] | Member | us-gaap:UncollectibleReceivablesMember | ||
| 13 | Contracts Accounted for under Percentage of Completion [Member] | Member | us-gaap:ContractsAccountedForUnderPercentageOfCompletionMember | ||
| 14 | Change in Assumptions for Defined Benefit Plans [Member] | Member | us-gaap:ChangeInAssumptionsForPensionPlansMember | ||
| 15 | Change in Accounting Method Accounted for as Change in Estimate [Member] | Member | us-gaap:ChangeInAccountingMethodAccountedForAsChangeInEstimateMember | ||
| 16 | Sales Returns and Allowances [Member] | Member | us-gaap:SalesReturnsAndAllowancesMember | ||
| 17 | Regulatory Reviews of Filings [Member] | Member | us-gaap:RegulatoryReviewsOfFilingsMember | ||
| 18 | Disputes [Member] | Member | us-gaap:DisputesMember | ||
| 19 | Service Life [Member] | Member | us-gaap:ServiceLifeMember | ||
| 20 | Salvage Value [Member] | Member | us-gaap:SalvageValueMember | ||
| 21 | Change in Accounting Estimate [Line Items] | LineItems | us-gaap:ChangeInAccountingEstimateLineItems | ||
| 22 | Change in Accounting Estimate, Description | Concept (Text/String) | For Period | us-gaap:ChangeInAccountingEstimateDescription | |
| 23 | New Accounting Pronouncements and Changes in Accounting Principles [Abstract] | Abstract | us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract | ||
| 24 | New Accounting Pronouncements and Changes in Accounting Principles [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock | |
| 25 | Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfNewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock | |
| 26 | New Accounting Pronouncements or Change in Accounting Principle [Table] | Table | us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleTable | ||
| 27 | Adjustments for New Accounting Pronouncements [Axis] | Axis | us-gaap:AdjustmentsForNewAccountingPronouncementsAxis | ||
| 28 | Type of Adoption [Domain] | Member | us-gaap:TypeOfAdoptionMember | ||
| 29 | Adjustments for New Accounting Pronouncement [Member] | Member | us-gaap:NewAccountingPronouncementMember | ||
| 30 | Accounting Standards Update 2010-26 [Member] | Member | us-gaap:AccountingStandardsUpdate201026Member | ||
| 31 | Accounting Standards Update 2011-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201104Member | ||
| 32 | Accounting Standards Update 2013-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201307Member | ||
| 33 | Accounting Standards Update 2014-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201409Member | ||
| 34 | Accounting Standards Update 2015-17 [Member] | Member | us-gaap:AccountingStandardsUpdate201517Member | ||
| 35 | Accounting Standards Update 2015-02 [Member] | Member | us-gaap:AccountingStandardsUpdate201502Member | ||
| 36 | Accounting Standards Update 2015-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201507Member | ||
| 37 | Accounting Standards Update 2015-10 [Member] | Member | us-gaap:AccountingStandardsUpdate201510Member | ||
| 38 | Accounting Standards Update 2016-01 [Member] | Member | us-gaap:AccountingStandardsUpdate201601Member | ||
| 39 | Accounting Standards Update 2016-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201604Member | ||
| 40 | Accounting Standards Update 2016-05 [Member] | Member | us-gaap:AccountingStandardsUpdate201605Member | ||
| 41 | Accounting Standards Update 2016-06 [Member] | Member | us-gaap:AccountingStandardsUpdate201606Member | ||
| 42 | Accounting Standards Update 2016-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201607Member | ||
| 43 | Accounting Standards Update 2016-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201609Member | ||
| 44 | Accounting Standards Update 2016-02 [Member] | Member | us-gaap:AccountingStandardsUpdate201602Member | ||
| 45 | Accounting Standards Update 2016-13 [Member] | Member | us-gaap:AccountingStandardsUpdate201613Member | ||
| 46 | Accounting Standards Update 2016-15 [Member] | Member | us-gaap:AccountingStandardsUpdate201615Member | ||
| 47 | Accounting Standards Update 2016-16 [Member] | Member | us-gaap:AccountingStandardsUpdate201616Member | ||
| 48 | Accounting Standards Update 2016-17 [Member] | Member | us-gaap:AccountingStandardsUpdate201617Member | ||
| 49 | Accounting Standards Update 2016-18 [Member] | Member | us-gaap:AccountingStandardsUpdate201618Member | ||
| 50 | Accounting Standards Update 2016-19 [Member] | Member | us-gaap:AccountingStandardsUpdate201619Member | ||
| 51 | Accounting Standards Update 2017-01 [Member] | Member | us-gaap:AccountingStandardsUpdate201701Member | ||
| 52 | Accounting Standards Update 2017-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201704Member | ||
| 53 | Accounting Standards Update 2017-05 [Member] | Member | us-gaap:AccountingStandardsUpdate201705Member | ||
| 54 | Accounting Standards Update 2017-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201707Member | ||
| 55 | Accounting Standards Update 2017-08 [Member] | Member | us-gaap:AccountingStandardsUpdate201708Member | ||
| 56 | Accounting Standards Update 2017-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201709Member | ||
| 57 | Accounting Standards Update 2017-10 [Member] | Member | us-gaap:AccountingStandardsUpdate201710Member | ||
| 58 | Accounting Standards Update 2017-11 [Member] | Member | us-gaap:AccountingStandardsUpdate201711Member | ||
| 59 | Accounting Standards Update 2017-12 [Member] | Member | us-gaap:AccountingStandardsUpdate201712Member | ||
| 60 | Accounting Standards Update 2017-15 [Member] | Member | us-gaap:AccountingStandardsUpdate201715Member | ||
| 61 | Accounting Standards Update 2018-01 [Member] | Member | us-gaap:AccountingStandardsUpdate201801Member | ||
| 62 | Accounting Standards Update 2018-02 [Member] | Member | us-gaap:AccountingStandardsUpdate201802Member | ||
| 63 | Accounting Standards Update 2018-03 [Member] | Member | us-gaap:AccountingStandardsUpdate201803Member | ||
| 64 | Accounting Standards Update 2018-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201804Member | ||
| 65 | Accounting Standards Update 2018-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201807Member | ||
| 66 | Accounting Standards Update 2018-08 [Member] | Member | us-gaap:AccountingStandardsUpdate201808Member | ||
| 67 | Accounting Standards Update 2018-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201809Member | ||
| 68 | Accounting Standards Update 2018-11 [Member] | Member | us-gaap:AccountingStandardsUpdate201811Member | ||
| 69 | Accounting Standards Update 2018-12 [Member] | Member | us-gaap:AccountingStandardsUpdate201812Member | ||
| 70 | Accounting Standards Update 2018-13 [Member] | Member | us-gaap:AccountingStandardsUpdate201813Member | ||
| 71 | Accounting Standards Update 2018-14 [Member] | Member | us-gaap:AccountingStandardsUpdate201814Member | ||
| 72 | Accounting Standards Update 2018-15 [Member] | Member | us-gaap:AccountingStandardsUpdate201815Member | ||
| 73 | Accounting Standards Update 2018-16 [Member] | Member | us-gaap:AccountingStandardsUpdate201816Member | ||
| 74 | Accounting Standards Update 2018-17 [Member] | Member | us-gaap:AccountingStandardsUpdate201817Member | ||
| 75 | Fair Value Option Election for Variable Interest Entity [Member] | Member | us-gaap:FairValueOptionElectionForVariableInterestEntityMember | ||
| 76 | Cumulative-Effect Adjustment, Consolidation of Variable Interest Entity [Member] | Member | us-gaap:CumulativeEffectAdjustmentConsolidationOfVariableInterestEntityMember | ||
| 77 | Cumulative-Effect Adjustment, Deconsolidation of Variable Interest Entity [Member] | Member | us-gaap:CumulativeEffectAdjustmentDeconsolidationOfVariableInterestEntityMember | ||
| 78 | Accounting Standards Update 2018-18 [Member] | Member | us-gaap:AccountingStandardsUpdate201818Member | ||
| 79 | Accounting Standards Update 2018-20 [Member] | Member | us-gaap:AccountingStandardsUpdate201820Member | ||
| 80 | Adjustments for New Accounting Principle, Early Adoption [Member] | Member | us-gaap:AdjustmentsForNewAccountingPrincipleEarlyAdoptionMember | ||
| 81 | New Accounting Pronouncement, Early Adoption, Effect [Member] | Member | us-gaap:NewAccountingPronouncementEarlyAdoptionEffectMember | ||
| 82 | Adjustments for Change in Accounting Principle [Axis] | Axis | us-gaap:AdjustmentsForChangeInAccountingPrincipleAxis | ||
| 83 | Adjustments for Change in Accounting Principle [Domain] | Member | us-gaap:ChangeInAccountingPrincipleMember | ||
| 84 | Restatement [Axis] | Axis | srt:RestatementAxis | ||
| 85 | Restatement [Domain] | Member | srt:RestatementDomain | ||
| 86 | Previously Reported [Member] | Member | srt:ScenarioPreviouslyReportedMember | ||
| 87 | Restatement Adjustment [Member] | Member | srt:RestatementAdjustmentMember | ||
| 88 | New Accounting Pronouncements or Change in Accounting Principle [Line Items] | LineItems | us-gaap:NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems | ||
| 89 | New Accounting Pronouncement or Change in Accounting Principle, Description | Concept (Text/String) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescription | |
| 90 | Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | Concept (Yes/No) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted | |
| 91 | Change in Accounting Principle, Accounting Standards Update, Early Adoption [true false] | Concept (Yes/No) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateEarlyAdoption | |
| 92 | Change in Accounting Principle, Accounting Standards Update, Transition Option Elected [Fixed List] | Concept (us-types:transitionOptionType) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateTransitionOptionElectedFixedList | |
| 93 | Change in Accounting Principle, Accounting Standards Update, Adoption Date | Concept (Date) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate | |
| 94 | New Accounting Pronouncement or Change in Accounting Principle, Prior Period Not Restated [true false] | Concept (Yes/No) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrinciplePriorPeriodNotRestated | |
| 95 | New Accounting Pronouncement or Change in Accounting Principle, Description of Financial Statement Line Items, Prospective Transition | LineItems | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescriptionOfFinancialStatementLineItemsProspectiveTransition | ||
| 96 | New Accounting Pronouncement or Change in Accounting Principle, Description of Prior-period Information Retrospectively Adjusted | Concept (Text/String) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescriptionOfPriorperiodInformationRetrospectivelyAdjusted | |
| 97 | New Accounting Pronouncement or Change in Accounting Principle, Retrospective Adjustments [Abstract] | Abstract | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleRetrospectiveAdjustmentsAbstract | ||
| 98 | New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Operating Results | Concept (Monetary) | For Period | Credit | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnOperatingResults |
| 99 | New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Net Income | Concept (Monetary) | For Period | Credit | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnNetIncome |
| 100 | New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Basic Earnings Per Share | Concept (Share) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnBasicEarningsPerShare | |
| 101 | New Accounting Pronouncement or Change in Accounting Principle, Effect of Change on Diluted Earnings Per Share | Concept (Share) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfChangeOnDilutedEarningsPerShare | |
| 102 | New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets | Concept (Monetary) | As Of | Credit | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleCumulativeEffectOfChangeOnEquityOrNetAssets1 |
| 103 | New Accounting Pronouncement or Change in Accounting Principle, Retrospective Application Impracticable | Concept (Text/String) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleRetrospectiveApplicationImpracticable | |
| 104 | New Accounting Pronouncement or Change in Accounting Principle, Indirect Effects | Concept (Text/String) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleIndirectEffects | |
| 105 | New Accounting Pronouncement, Transition Guidance Not Significant or Not Practical | Concept (Text/String) | For Period | us-gaap:NewAccountingPronouncementTransitionGuidanceNotSignificantOrNotPractical | |
| 106 | Change in Accounting Principle, Effect on Financial Statement [Fixed List] | Concept (us-types:yesNoItemType) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOnFinancialStatementsFlag | |
| 107 | New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | Concept (Monetary) | For Period | Credit | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleEffectOfAdoptionQuantification |
| 108 | Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest | Concept (Monetary) | For Period | Credit | us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest |
| 109 | Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | Concept (Monetary) | For Period | Credit | us-gaap:ProfitLoss |
| 110 | Earnings Per Share, Basic | Concept (Share) | For Period | us-gaap:EarningsPerShareBasic | |
| 111 | Earnings Per Share, Diluted | Concept (Share) | For Period | us-gaap:EarningsPerShareDiluted | |
| 112 | Service Concession Arrangement, Retrospective Application, All Contracts [true false] | Concept (Yes/No) | For Period | us-gaap:ServiceConcessionArrangementRetrospectiveApplicationAllContracts | |
| 113 | Service Concession Arrangement, Retrospective Application, Not Completed Contracts [true false] | Concept (Yes/No) | For Period | us-gaap:ServiceConcessionArrangementRetrospectiveApplicationNotCompletedContracts | |
| 114 | Accounting Standards Update 2018-18 Application [Fixed List] | Concept (us-types:contractApplicationItemType) | For Period | us-gaap:AccountingStandardsUpdate201818ApplicationFixedList | |
| 115 | Description of New Accounting Pronouncements Not yet Adopted [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:DescriptionOfNewAccountingPronouncementsNotYetAdopted | |
| 116 | New Accounting Pronouncement, Early Adoption [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:NewAccountingPronouncementEarlyAdoptionTableTextBlock | |
| 117 | New Accounting Pronouncement, Early Adoption [Table] | Table | us-gaap:NewAccountingPronouncementEarlyAdoptionTable | ||
| 118 | New Accounting Pronouncement, Early Adoption [Axis] | Axis | us-gaap:NewAccountingPronouncementEarlyAdoptionAxis | ||
| 119 | New Accounting Principles, Early Adoption [Domain] | Member | us-gaap:NewAccountingPrinciplesEarlyAdoptionMember | ||
| 120 | Adjustments for New Accounting Principle, Early Adoption [Member] | Member | us-gaap:AdjustmentsForNewAccountingPrincipleEarlyAdoptionMember | ||
| 121 | New Accounting Pronouncement, Early Adoption, Effect [Member] | Member | us-gaap:NewAccountingPronouncementEarlyAdoptionEffectMember | ||
| 122 | New Accounting Pronouncement, Early Adoption [Line Items] | LineItems | us-gaap:NewAccountingPronouncementEarlyAdoptionLineItems | ||
| 123 | Revenues | Concept (Monetary) | For Period | Credit | us-gaap:Revenues |
| 124 | Income (Loss) from Continuing Operations before Income Taxes, Domestic | Concept (Monetary) | For Period | Credit | us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic |
| 125 | Income (Loss) from Continuing Operations before Income Taxes, Foreign | Concept (Monetary) | For Period | Credit | us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign |
| 126 | Net Income (Loss) Attributable to Parent | Concept (Monetary) | For Period | Credit | us-gaap:NetIncomeLoss |
| 127 | Earnings Per Share, Basic | Concept (Share) | For Period | us-gaap:EarningsPerShareBasic | |
| 128 | Earnings Per Share, Diluted | Concept (Share) | For Period | us-gaap:EarningsPerShareDiluted | |
| 129 | Prospective Adoption of New Accounting Pronouncements [Abstract] | Abstract | us-gaap:ProspectiveAdoptionOfNewAccountingPronouncementsAbstract | ||
| 130 | Schedule of Prospective Adoption of New Accounting Pronouncements [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfProspectiveAdoptionOfNewAccountingPronouncementsTableTextBlock | |
| 131 | Prospective Adoption of New Accounting Pronouncements [Table] | Table | us-gaap:ProspectiveAdoptionOfNewAccountingPronouncementsTable | ||
| 132 | Prospective Adoption of New Accounting Pronouncements [Axis] | Axis | us-gaap:ProspectiveAdoptionOfNewAccountingPronouncementsAxis | ||
| 133 | Accounting Guidance [Domain] | Member | us-gaap:AccountingGuidanceMember | ||
| 134 | Previous Accounting Guidance [Member] | Member | us-gaap:PreviousAccountingGuidanceMember | ||
| 135 | Adjustments for New Accounting Pronouncement [Member] | Member | us-gaap:NewAccountingPronouncementMember | ||
| 136 | Accounting Standards Update 2010-26 [Member] | Member | us-gaap:AccountingStandardsUpdate201026Member | ||
| 137 | Accounting Standards Update 2011-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201104Member | ||
| 138 | Accounting Standards Update 2013-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201307Member | ||
| 139 | Accounting Standards Update 2014-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201409Member | ||
| 140 | Accounting Standards Update 2015-17 [Member] | Member | us-gaap:AccountingStandardsUpdate201517Member | ||
| 141 | Accounting Standards Update 2015-02 [Member] | Member | us-gaap:AccountingStandardsUpdate201502Member | ||
| 142 | Accounting Standards Update 2015-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201507Member | ||
| 143 | Accounting Standards Update 2015-10 [Member] | Member | us-gaap:AccountingStandardsUpdate201510Member | ||
| 144 | Accounting Standards Update 2016-01 [Member] | Member | us-gaap:AccountingStandardsUpdate201601Member | ||
| 145 | Accounting Standards Update 2016-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201604Member | ||
| 146 | Accounting Standards Update 2016-05 [Member] | Member | us-gaap:AccountingStandardsUpdate201605Member | ||
| 147 | Accounting Standards Update 2016-06 [Member] | Member | us-gaap:AccountingStandardsUpdate201606Member | ||
| 148 | Accounting Standards Update 2016-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201607Member | ||
| 149 | Accounting Standards Update 2016-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201609Member | ||
| 150 | Accounting Standards Update 2016-02 [Member] | Member | us-gaap:AccountingStandardsUpdate201602Member | ||
| 151 | Accounting Standards Update 2016-13 [Member] | Member | us-gaap:AccountingStandardsUpdate201613Member | ||
| 152 | Accounting Standards Update 2016-15 [Member] | Member | us-gaap:AccountingStandardsUpdate201615Member | ||
| 153 | Accounting Standards Update 2016-16 [Member] | Member | us-gaap:AccountingStandardsUpdate201616Member | ||
| 154 | Accounting Standards Update 2016-17 [Member] | Member | us-gaap:AccountingStandardsUpdate201617Member | ||
| 155 | Accounting Standards Update 2016-18 [Member] | Member | us-gaap:AccountingStandardsUpdate201618Member | ||
| 156 | Accounting Standards Update 2016-19 [Member] | Member | us-gaap:AccountingStandardsUpdate201619Member | ||
| 157 | Accounting Standards Update 2017-01 [Member] | Member | us-gaap:AccountingStandardsUpdate201701Member | ||
| 158 | Accounting Standards Update 2017-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201704Member | ||
| 159 | Accounting Standards Update 2017-05 [Member] | Member | us-gaap:AccountingStandardsUpdate201705Member | ||
| 160 | Accounting Standards Update 2017-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201707Member | ||
| 161 | Accounting Standards Update 2017-08 [Member] | Member | us-gaap:AccountingStandardsUpdate201708Member | ||
| 162 | Accounting Standards Update 2017-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201709Member | ||
| 163 | Accounting Standards Update 2017-10 [Member] | Member | us-gaap:AccountingStandardsUpdate201710Member | ||
| 164 | Accounting Standards Update 2017-11 [Member] | Member | us-gaap:AccountingStandardsUpdate201711Member | ||
| 165 | Accounting Standards Update 2017-12 [Member] | Member | us-gaap:AccountingStandardsUpdate201712Member | ||
| 166 | Accounting Standards Update 2017-15 [Member] | Member | us-gaap:AccountingStandardsUpdate201715Member | ||
| 167 | Accounting Standards Update 2018-01 [Member] | Member | us-gaap:AccountingStandardsUpdate201801Member | ||
| 168 | Accounting Standards Update 2018-02 [Member] | Member | us-gaap:AccountingStandardsUpdate201802Member | ||
| 169 | Accounting Standards Update 2018-03 [Member] | Member | us-gaap:AccountingStandardsUpdate201803Member | ||
| 170 | Accounting Standards Update 2018-04 [Member] | Member | us-gaap:AccountingStandardsUpdate201804Member | ||
| 171 | Accounting Standards Update 2018-07 [Member] | Member | us-gaap:AccountingStandardsUpdate201807Member | ||
| 172 | Accounting Standards Update 2018-08 [Member] | Member | us-gaap:AccountingStandardsUpdate201808Member | ||
| 173 | Accounting Standards Update 2018-09 [Member] | Member | us-gaap:AccountingStandardsUpdate201809Member | ||
| 174 | Accounting Standards Update 2018-11 [Member] | Member | us-gaap:AccountingStandardsUpdate201811Member | ||
| 175 | Accounting Standards Update 2018-12 [Member] | Member | us-gaap:AccountingStandardsUpdate201812Member | ||
| 176 | Accounting Standards Update 2018-13 [Member] | Member | us-gaap:AccountingStandardsUpdate201813Member | ||
| 177 | Accounting Standards Update 2018-14 [Member] | Member | us-gaap:AccountingStandardsUpdate201814Member | ||
| 178 | Accounting Standards Update 2018-15 [Member] | Member | us-gaap:AccountingStandardsUpdate201815Member | ||
| 179 | Accounting Standards Update 2018-16 [Member] | Member | us-gaap:AccountingStandardsUpdate201816Member | ||
| 180 | Accounting Standards Update 2018-17 [Member] | Member | us-gaap:AccountingStandardsUpdate201817Member | ||
| 181 | Fair Value Option Election for Variable Interest Entity [Member] | Member | us-gaap:FairValueOptionElectionForVariableInterestEntityMember | ||
| 182 | Cumulative-Effect Adjustment, Consolidation of Variable Interest Entity [Member] | Member | us-gaap:CumulativeEffectAdjustmentConsolidationOfVariableInterestEntityMember | ||
| 183 | Cumulative-Effect Adjustment, Deconsolidation of Variable Interest Entity [Member] | Member | us-gaap:CumulativeEffectAdjustmentDeconsolidationOfVariableInterestEntityMember | ||
| 184 | Accounting Standards Update 2018-18 [Member] | Member | us-gaap:AccountingStandardsUpdate201818Member | ||
| 185 | Accounting Standards Update 2018-20 [Member] | Member | us-gaap:AccountingStandardsUpdate201820Member | ||
| 186 | Item Effected [Line Items] | LineItems | us-gaap:ItemEffectedLineItems | ||
| 187 | New Accounting Pronouncement or Change in Accounting Principle, Description | Concept (Text/String) | For Period | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescription | |
| 188 | Change in Accounting Principle, Accounting Standards Update, Adopted [true false] | Concept (Yes/No) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted | |
| 189 | Change in Accounting Principle, Accounting Standards Update, Early Adoption [true false] | Concept (Yes/No) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateEarlyAdoption | |
| 190 | Change in Accounting Principle, Accounting Standards Update, Transition Option Elected [Fixed List] | Concept (us-types:transitionOptionType) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateTransitionOptionElectedFixedList | |
| 191 | Change in Accounting Principle, Accounting Standards Update, Adoption Date | Concept (Date) | As Of | us-gaap:ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate | |
| 192 | New Accounting Pronouncement or Change in Accounting Principle, Description of Financial Statement Line Items, Prospective Transition | LineItems | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescriptionOfFinancialStatementLineItemsProspectiveTransition | ||
| 193 | Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net [Abstract] | Abstract | us-gaap:DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquiredAbstract | ||
| 194 | Deferred Policy Acquisition Cost | Concept (Monetary) | As Of | Debit | us-gaap:DeferredPolicyAcquisitionCosts |
| 195 | Present Value of Future Insurance Profits, Net | Concept (Monetary) | As Of | Debit | us-gaap:ValueOfBusinessAcquiredVOBA |
| 196 | Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net, Total | Concept (Monetary) | As Of | Debit | us-gaap:DeferredPolicyAcquisitionCostsAndValueOfBusinessAcquired |
| 197 | Income Statement [Abstract] | Abstract | us-gaap:IncomeStatementAbstract | ||
| 198 | Revenues | Concept (Monetary) | For Period | Credit | us-gaap:Revenues |
| 199 | Income (Loss) from Continuing Operations before Income Taxes, Domestic | Concept (Monetary) | For Period | Credit | us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic |
| 200 | Income (Loss) from Continuing Operations before Income Taxes, Foreign | Concept (Monetary) | For Period | Credit | us-gaap:IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign |
| 201 | Net Income (Loss) Attributable to Parent | Concept (Monetary) | For Period | Credit | us-gaap:NetIncomeLoss |
| 202 | Earnings Per Share, Basic | Concept (Share) | For Period | us-gaap:EarningsPerShareBasic | |
| 203 | Earnings Per Share, Diluted | Concept (Share) | For Period | us-gaap:EarningsPerShareDiluted | |
| 204 | Prior Period Adjustment [Abstract] | Abstract | us-gaap:PriorPeriodAdjustmentAbstract | ||
| 205 | Error Corrections and Prior Period Adjustments, Description | Concept (Text/String) | For Period | us-gaap:ErrorCorrectionsAndPriorPeriodAdjustmentsDescription | |
| 206 | Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentsTextBlock | |
| 207 | Schedule of Error Corrections and Prior Period Adjustment Restatement [Table] | Table | us-gaap:ScheduleOfErrorCorrectionsAndPriorPeriodAdjustmentRestatementTable | ||
| 208 | Adjustments for Error Corrections [Axis] | Axis | us-gaap:ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis | ||
| 209 | Adjustments for Error Correction [Domain] | Member | us-gaap:AdjustmentsForErrorCorrectionDomain | ||
| 210 | Restatement [Axis] | Axis | srt:RestatementAxis | ||
| 211 | Restatement [Domain] | Member | srt:RestatementDomain | ||
| 212 | Previously Reported [Member] | Member | srt:ScenarioPreviouslyReportedMember | ||
| 213 | Restatement Adjustment [Member] | Member | srt:RestatementAdjustmentMember | ||
| 214 | Error Corrections and Prior Period Adjustments Restatement [Line Items] | LineItems | us-gaap:ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementLineItems | ||
| 215 | Quantifying Prior Year Misstatements Corrected in Current Year Financial Statements [Abstract] | Abstract | us-gaap:QuantifyingPriorYearMisstatementsCorrectedInCurrentYearFinancialStatementsAbstract | ||
| 216 | Schedule of Quantifying Prior Year Misstatements Corrected in Current Year Financial Statements [Table Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:ScheduleOfQuantifyingPriorYearMisstatementsCorrectedInCurrentYearFinancialStatementsTextBlock | |
| 217 | Schedule of Quantifying Prior Year Misstatement Corrected in Current Year Financial Statements [Table] | Table | us-gaap:ScheduleOfQuantifyingPriorYearMisstatementCorrectedInCurrentYearFinancialStatementsTable | ||
| 218 | Nature of Error [Axis] | Axis | us-gaap:QuantifyingMisstatementInCurrentYearFinancialStatementsByNatureOfErrorAxis | ||
| 219 | Nature of Error [Domain] | Member | us-gaap:NatureOfErrorDomain | ||
| 220 | Quantifying Misstatement in Current Year Financial Statements [Line Items] | LineItems | us-gaap:QuantifyingMisstatementInCurrentYearFinancialStatementsLineItems | ||
| 221 | Quantifying Misstatement in Current Year Financial Statements, Amount | Concept (Monetary) | For Period | Debit | us-gaap:QuantifyingMisstatementInCurrentYearFinancialStatementsAmount |
| 222 | Change in Reporting Entity | Concept (Text/String) | For Period | us-gaap:ChangeInReportingEntity | |
| 223 | Immaterial Error Correction | Concept (Text/String) | For Period | us-gaap:ImmaterialErrorCorrection | |
| 224 | Disclosure Text Block Supplement [Abstract] | Abstract | us-gaap:DisclosureTextBlockSupplementAbstract | ||
| 225 | Accounting Changes [Text Block] | Concept (Text Block (HTML)) | For Period | us-gaap:AccountingChangesTextBlock |