XML 129 R115.htm IDEA: XBRL DOCUMENT v3.22.0.1
ENVIRONMENTAL MATTERS - Narrative (Details)
$ in Millions
Dec. 31, 2021
USD ($)
site
Dec. 31, 2020
USD ($)
Environmental Remediation Obligations [Abstract]    
Number of disposal sites | site 22  
Asset retirement obligations | $ $ 27 $ 27