Taxonomy Viewer

Name	ScheduleOfHealthCareCostTrendRatesTableTextBlock
Namespace	http://fasb.org/us-gaap/2020-01-31
Prefix	us-gaap
Data type	nonnum:textBlockItemType
Period type	duration
Substitution Group	xbrli:item
Balance	None
Nillable	True
Abstract	False

Text	Lang	Role	Container role
Schedule of 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 assumed health care cost trend rates for the next year used to measure the expected cost of benefits covered by the plans, including the ultimate trend rate(s) and when that rate is expected to be achieved.	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	715	http://fasb.org/us-gaap/role/ref/legacyRef
SubTopic	20	http://fasb.org/us-gaap/role/ref/legacyRef
Section	50	http://fasb.org/us-gaap/role/ref/legacyRef
Paragraph	1	http://fasb.org/us-gaap/role/ref/legacyRef
Subparagraph	(l)	http://fasb.org/us-gaap/role/ref/legacyRef
URI	http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920	http://fasb.org/us-gaap/role/ref/legacyRef

Name	Relation Type	Role
Table Text Block [Abstract] `us-gaap:TableTextBlock`	parent-child	http://fasb.org/us-gaap/role/disclosure/ComprehensiveTextBlockList
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] `us-gaap:DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems`	parent-child	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] `us-gaap:DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems`	domain-member	http://fasb.org/us-gaap/role/disclosure/CompensationRelatedCostsRetirementBenefitsDefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable