XML 90 R78.htm IDEA: XBRL DOCUMENT v3.10.0.1
Midcontinent Independent System Operator, Inc. (MISO) (Details 7)
$ in Millions
Sep. 04, 2018
USD ($)
MISO | Electric transmission rate proceeding  
Public Utilities, General Disclosures [Line Items]  
Public Utilities, Tariff on Capital Project Tracker $ 12.5