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cm:Concept: us-gaap:AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForAcquisitionsAndDivestitures
Standard label: Accrual for Environmental Loss Contingencies, Increase (Decrease) for Acquisitions and Divestitures
Name: us-gaap:AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForAcquisitionsAndDivestitures
Documentation: Amount of increase (decrease) in the obligation for environmental loss contingencies from business acquisitions (divestitures).
Object type: cm:Concept
Data type: Monetary (xbrli:monetaryItemType)
Period type: For Period (duration)
Balance type: Credit
Abstract: false
Workiva Wdesk Taxonomy Analyzer: us-gaap:AccrualForEnvironmentalLossContingenciesIncreaseDecreaseForAcquisitionsAndDivestitures

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Labels
Label Role Language
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Acquisitions and Divestitures http://www.xbrl.org/2003/role/label en-US

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References
Reference Role Topic
FASB Accounting Standards Codification 450 20 S99 1 (SAB TOPIC 5.Y.Q2) http://fasb.org/us-gaap/role/ref/legacyRef 450