Commitments and Contingencies Commitments and Contingencies (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2023	Mar. 31, 2022
Loss Contingencies [Line Items]
Litigation proceeds for reimbursement of spent nuclear fuel storage costs		$ 0	$ 32,367
Entergy Arkansas [Member] | ANO
Loss Contingencies [Line Items]
Litigation Settlement, Amount Awarded from Other Party	$ 41,000
Damages awarded for previously recorded operation and maintenance	10,000
Damages awarded for previously recorded taxes other than income taxes	2,000
Damages awarded for previously capitalized nuclear fuel expense [Abstract]	8,000
Damages awarded for previously recorded materials and supplies [Abstract]	3,000
Damages awarded for previously recorded nuclear fuel expense	$ 18,000