Disclosure informationEnvironmental Loss Contingencies Accrual, Reconciliation of Undiscounted Amount to Recorded Balance [Hierarchy]


Label:	Environmental Loss Contingencies Accrual, Reconciliation of Undiscounted Amount to Recorded Balance [Hierarchy]
Name:	AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceHierarchy
Parent Topic:	Contingencies
Documentation:	Disclosure of information about reconcilation of undiscounted amounts of environmental loss contingencies accrual to recorded balance.
Commentary:
Level:	Detail
Information model:	[Hierarchy]
Completion state:	WIP
Status:
US GAAP XBRL Taxonomy Text Block:	NO TEXT BLOCK
US GAAP XBRL Taxonomy Network:	http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations \| Machine-readable \| Human-readable

Label:

Environmental Loss Contingencies Accrual, Reconciliation of Undiscounted Amount to Recorded Balance [Hierarchy]

Name:

AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceHierarchy

Parent Topic:

Contingencies

Documentation:

Disclosure of information about reconcilation of undiscounted amounts of environmental loss contingencies accrual to recorded balance.

Commentary:

Level:

Detail

Information model:

[Hierarchy]

Completion state:

WIP

Status:

US GAAP XBRL Taxonomy Text Block:

NO TEXT BLOCK

US GAAP XBRL Taxonomy Network:

http://fasb.org/us-gaap/role/disclosure/EnvironmentalRemediationObligations | Machine-readable | Human-readable

Entity Name and Text Block or Detailed Disclosure

Prototype of Disclosure (Representation structure): Machine Readable

Line	Label	Object Class (Data type)	Period Type	Balance	Report Element Name
1	Accrual for Environmental Loss Contingencies, Reconciliation of Undiscounted Amount to Recorded Balance [Hierarchy]	Concept (Text/String)	For Period		us-gaap:AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceAbstract
2	Accrual for Environmental Loss Contingencies, Discount Rate	Concept (Percent)	As Of		us-gaap:AccrualForEnvironmentalLossContingenciesDiscountRate

From	Arcrole (predicate)	To
disclosures:AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceHierarchy	rules-arcroles:disclosure-isSECType	fro:DisclosureType
disclosures:AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceHierarchy	rules-arcroles:disclosure-hasConceptArrangementPattern	fro:Hierarchy

From

Arcrole (predicate)

disclosures:AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceHierarchy

rules-arcroles:disclosure-isSECType

fro:DisclosureType

disclosures:AccrualForEnvironmentalLossContingenciesReconciliationOfUndiscountedAmountToRecordedBalanceHierarchy

rules-arcroles:disclosure-hasConceptArrangementPattern

fro:Hierarchy