XML 63 R41.htm IDEA: XBRL DOCUMENT v3.22.2.2
COMMITMENTS AND CONTINGENCIES (Details)
$ in Millions
Sep. 30, 2022
USD ($)
Dec. 31, 2021
USD ($)
Commitments and Contingencies [Line Items]    
Number Of Former Manufactured Gas Sites Where We Own Or Retain Legal Responsibility For Environmental Conditions 12  
Number of sites where regulatory closure has been achieved 5  
Number of sites with ongoing groundwater monitoring 7  
Deferred MGP Costs, Maximum $ 15.0  
Regulatory Asset for Costs Associated with Manufactured Gas Sites 29.9  
Accrual for Environmental Loss Contingencies $ 13.2 $ 22.8