| Name | AccrualForEnvironmentalLossContingenciesGrossAbstract |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | xbrli:stringItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | True |
| Text | Lang | Role | Container role |
|---|---|---|---|
| Accrual for Environmental Loss Contingencies, Gross, Fiscal Year Maturity [Abstract] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueWithinOneYear | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | |
us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInSecondYear | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | |
us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInThirdYear | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | |
us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInFourthYear | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | |
us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueInFifthYear | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | |
us-gaap:AccrualForEnvironmentalLossContingenciesUndiscountedDueAfterFifthYear | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | |
us-gaap:AccrualForEnvironmentalLossContingenciesGross | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations |
| Name | Relation Type | Role | |
|---|---|---|---|
us-gaap:AccrualForEnvironmentalLossContingenciesFiscalYearMaturityAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations |