Commitments and Contingencies - Comanche Unit 3 Litigation (Details) $ in Millions	9 Months Ended
	Sep. 30, 2023 USD ($)
Other Commitments [Line Items]
Cap of noneconomic loss in a civil action (CORE)	$ 253
Cap of noneconomic loss in a civil action (CORE withdrawal)	187
CORE outcome excluding interest	26
CORE outcome total	$ 34