Common Equity Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net other comprehensive income (loss) for the period	$ 140,774	$ 116,679	$ (2,287)
Amounts reclassified from accumulated other comprehensive income (loss)	39,919	32,919
Other comprehensive income (loss) before reclassifications	100,855	83,760
Accumulated other comprehensive loss, Beginning Balance	(191,754)	(332,528)
Cash flow hedges net unrealized gain (loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net other comprehensive income (loss) for the period	1,035	(29,754)
Amounts reclassified from accumulated other comprehensive income (loss)	127	(31,193)
Other comprehensive income (loss) before reclassifications	908	1,439
Accumulated other comprehensive loss, Beginning Balance	0	(1,035)
Pension and other postretirement liabilities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net other comprehensive income (loss) for the period	146,893	195,929
Amounts reclassified from accumulated other comprehensive income (loss)	33,949	65,558
Other comprehensive income (loss) before reclassifications	112,944	130,371
Accumulated other comprehensive loss, Beginning Balance	(191,754)	(338,647)
Net unrealized investment gains [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net other comprehensive income (loss) for the period	(7,154)	(49,496)
Amounts reclassified from accumulated other comprehensive income (loss)	5,843	(1,446)
Other comprehensive income (loss) before reclassifications	(12,997)	(48,050)
Accumulated other comprehensive loss, Beginning Balance	0	7,154
Entergy Louisiana [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net other comprehensive income (loss) for the period	47,092	3,951	(235)
Accumulated other comprehensive loss, Beginning Balance	55,370	8,278
Entergy Louisiana [Member] | Pension and other postretirement liabilities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net other comprehensive income (loss) for the period	47,092	3,951
Amounts reclassified from accumulated other comprehensive income (loss)	(995)	(133)
Other comprehensive income (loss) before reclassifications	48,087	4,084
Accumulated other comprehensive loss, Beginning Balance	$ 55,370	$ 8,278	4,327
Restatement Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, Beginning Balance			(449,207)
Restatement Adjustment [Member] | Cash flow hedges net unrealized gain (loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, Beginning Balance			28,719
Restatement Adjustment [Member] | Pension and other postretirement liabilities [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, Beginning Balance			(534,576)
Restatement Adjustment [Member] | Net unrealized investment gains [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, Beginning Balance			$ 56,650