IndexPension Costs [Member]
| Name | PensionCostsMember |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:domainItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Pension Costs [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Rate action of a regulator resulting in capitalization or accrual of pension costs. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
References
| Name | Value | Role |
|---|---|---|
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/legacyRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/legacyRef |
| Topic | 980 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 715 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 1 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 | http://fasb.org/us-gaap/role/ref/legacyRef |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:RegulatoryAssetDomain | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations |
| us-gaap:RegulatoryLiabilityDomain | parent-child | http://fasb.org/us-gaap/role/disclosure/RegulatedOperations |
| us-gaap:RegulatoryAssetDomain | domain-member | http://fasb.org/us-gaap/role/disclosure/RegulatedOperationsScheduleOfRegulatoryAssetsTable |
| us-gaap:RegulatoryLiabilityDomain | domain-member | http://fasb.org/us-gaap/role/disclosure/RegulatedOperationsScheduleOfRegulatoryLiabilitiesTable |