Taxonomy Viewer

Name	DecommissioningTrustAssetsAmount
Namespace	http://fasb.org/us-gaap/2020-01-31
Prefix	us-gaap
Data type	xbrli:monetaryItemType
Period type	instant
Substitution Group	xbrli:item
Balance	debit
Nillable	True
Abstract	False

Text	Lang	Role	Container role
Decommissioning Fund Investments, Fair Value	en-US	http://www.xbrl.org/2003/role/label	http://www.xbrl.org/2003/role/link
The fair value of investments held in a trust fund to pay for the costs of decontaminating and decommissioning facilities, whether such amount is presented as a separate caption or as a parenthetical disclosure on the balance sheet. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.	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	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	(b)	http://fasb.org/us-gaap/role/ref/legacyRef
URI	http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849	http://fasb.org/us-gaap/role/ref/legacyRef

	Name	Relation Type	Role
	Other Utility Balance Sheet Accounts [Abstract] `us-gaap:OtherUtilityBalanceSheetAccountsAbstract`	parent-child	http://fasb.org/us-gaap/role/disclosure/RegulatedOperations