| Label/Title: | Asset Retirement Obligations |
| Name: | http://fasb.org/us-gaap/role/disclosure/AssetRetirementObligations |
| XBRL presentation relations: | http://xbrl.fasb.org/us-gaap/2019/dis/us-gaap-dis-aro-pre-2019-01-31.xml |
| Documentation: | |
| Category: | Disclosure |
| Number: | 420000 |
| ASC Topic #: | 410 |
| Tree View of Network: | http://xbrlsite-app.azurewebsites.net/TreeView/aro.aspx |
| Disclosures: | Asset Retirement Obligation Note [Note Level] | Asset Retirement Obligation, by Legal Entity [Roll Forward] | Asset Retirement Obligation [Roll Up] |
| Number of elements: | 29 |
| Flat representation: (shown below) | ../viewer/us-gaap-dis-aro-pre-2019-01-31_ModelStructure.html |
| Flat representation |
Last updated: 12/14/2019 11:01:16 AM