IndexElectric Transmission [Member]
| Name | ElectricTransmissionMember |
|---|---|
| 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 |
|---|---|---|---|
| System used for the electrical transmission of the bulk transport of high voltage power, typically over longer distances, between generating plants and distribution systems. Typically comprised of towers, overhead conductors, underground conduits, roads and trails. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Electric Transmission [Member] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:ElectricityMember | domain-member | http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists |