XML 59 R48.htm IDEA: XBRL DOCUMENT v3.10.0.1
COMMITMENTS AND CONTINGENCIES (Tables)
9 Months Ended
Sep. 30, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of regulatory assets and reserves related to manufactured gas plant sites
We have established the following regulatory assets and reserves related to manufactured gas plant sites:
(in millions)
 
September 30, 2018
 
December 31, 2017
Regulatory assets
 
$
680.0

 
$
676.6

Reserves for future remediation
 
617.4

 
617.2