Commitments and Contingencies Sherco (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	May 17, 2024
Public Utilities, General Disclosures [Line Items]
ALJ Recommended Customer Refund		$ 34
Disallowance Not Considered in ALJ Recommendation		$ 22
2011 Sherco Unit 3 Outage Refunds	$ 47
Proposed Refund - 2023 FCA	$ 22