| Name | RecordedThirdPartyEnvironmentalRecoveriesDiscountRate |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | num:percentItemType |
| Period type | instant |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Recorded Third-Party Environmental Recoveries, Discount Rate | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Rate applied to the undiscounted amount of the asset for third-party recoveries related to environmental remediation obligations to arrive at the present value recorded as of the balance sheet date. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| 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 | 410 | http://fasb.org/us-gaap/role/ref/legacyRef |
| SubTopic | 30 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/legacyRef |
| Paragraph | 7 | http://fasb.org/us-gaap/role/ref/legacyRef |
| URI | http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 | http://fasb.org/us-gaap/role/ref/legacyRef |