IndexSchedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block]
| Name | ScheduleOfEffectOfOnePercentagePointChangeInAssumedHealthCareCostTrendRatesTableTextBlock |
|---|---|
| Namespace | http://fasb.org/us-gaap/2021-01-31 |
| Prefix | us-gaap |
| Data type | dtr-types:textBlockItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Schedule of Effect of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates [Table Text Block] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Tabular disclosure of the effect of a one-percentage-point increase and the effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs and the accumulated postretirement benefit obligation for health care benefits. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
References
| Name | Value | Role |
|---|---|---|
| Note | Element is intended to be used for each reported period for which amendment from Accounting Standards Update identified in tin-part:Source_ASU_Number is not applied. | http://fasb.org/us-gaap/role/tin/transition |
| PublishDate | 2021-01 | http://fasb.org/us-gaap/role/tin/transition |
| Source | ASU | http://fasb.org/us-gaap/role/tin/transition |
| SourceName | Disclosure Framework-Defined Benefit Plans | http://fasb.org/us-gaap/role/tin/transition |
| Source_ASU_Number | 2018-14 | http://fasb.org/us-gaap/role/tin/transition |
| elementCreationTaxonomyVersion | 2011 | http://fasb.org/us-gaap/role/tin/taxonomyImplementationNote |
| Publisher | FASB | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| Name | Accounting Standards Codification | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| Topic | 715 | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| SubTopic | 20 | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| Section | 50 | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| Paragraph | 1 | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| Subparagraph | (m) | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
| URI | http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 | http://fasb.org/us-gaap/role/ref/otherTransitionRef |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:TableTextBlock | parent-child | http://fasb.org/us-gaap/role/disclosure/ComprehensiveTextBlockList |
| us-gaap:ASU201814TransitionAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits |