XML 151 R114.htm IDEA: XBRL DOCUMENT v3.20.2
Commitments and Contingencies Commitments and Contingencies - PacifiCorp - Hydroelectric (Details) - PacifiCorp [Member] - Klamath Hydroelectric System [Member]
$ in Millions
9 Months Ended
Sep. 30, 2020
USD ($)
Hydroelectric [Line Items]  
Dam removal cost limit $ 200
CALIFORNIA  
Hydroelectric [Line Items]  
Additional dam removal costs, California bond measure 250
Dam removal cost limit $ 16