Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
OPERATING ACTIVITIES
Consolidated net income	$ 1,097,138	$ 1,118,719	$ 1,406,653
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	2,190,371	2,242,944	2,257,750
Deferred income taxes, investment tax credits, and non-current taxes accrued	(47,154)	248,719	(131,114)
Asset Write-Offs, Impairments, And Related Charges	(163,464)	263,599	26,379
Changes in working capital:
Receivables	(157,267)	(84,629)	(139,296)
Fuel inventory	6,943	18,359	(27,458)
Accounts payable	(102,013)	269,797	137,457
Taxes accrued	4,263	(21,183)	207,556
Interest accrued	4,113	(10,640)	7,662
Deferred fuel costs	(393,746)	(466,050)	(49,484)
Other working capital accounts	(157,235)	(53,883)	(143,451)
Changes in provisions for estimated losses	374,079	(85,713)	(291,193)
Increase (Decrease) in Other Regulatory Assets	(576,859)	536,707	784,494
Increase (Decrease) in Regulatory Liabilities	(266,559)	43,631	238,669
Storm restoration costs approved for securitization recognized as regulatory asset	(941,035)	0	0
Changes in pension and other postretirement liabilities	(699,261)	(897,167)	50,379
Other	(1,259,458)	(250,917)	76,149
Net cash flow provided by operating activities	2,585,490	2,300,713	2,689,866
INVESTING ACTIVITIES
Construction/capital expenditures	(5,065,126)	(6,087,296)	(4,694,076)
Allowance for equity funds used during construction	72,832	70,473	119,430
Nuclear fuel purchases	(223,613)	(166,512)	(215,664)
Payments to Acquire Productive Assets	106,193	168,304	247,121
Net proceeds payments from sale of assets	(1,195)	17,421	0
Proceeds from insurance	9,829	0	0
Changes in securitization account	15,514	13,669	5,099
Payments To Storm Reserve Escrow Account	(1,494,048)	(25)	(2,273)
Receipts from storm reserve escrow account	1,125,279	83,105	297,588
Decrease (increase) in other investments	(3,328)	2,343	(12,755)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	32,367	49,236	72,711
Proceeds from nuclear decommissioning trust fund sales	1,636,686	5,553,629	3,107,812
Investment in nuclear decommissioning trust funds	(1,708,901)	(5,547,015)	(3,203,057)
Net cash flow used in investing activities	(5,709,897)	(6,179,276)	(4,772,306)
Proceeds from the issuance of:
Long-term debt	6,019,835	8,308,427	12,619,201
Common stock and treasury stock	32,042	5,977	42,600
Proceeds from Issuance of Common Stock	852,555	200,776	0
Retirement of long-term debt	(5,995,903)	(4,827,827)	(8,152,378)
Proceeds from securitization	3,163,572	0	0
Changes in credit borrowings and commercial paper - net	373,556	426,312	319,238
Other	42,761	43,221	(7,524)
Dividends paid:
Common stock	(841,677)	(775,122)	(748,342)
Preferred stock	(18,319)	(18,319)	(18,502)
Net cash flow provided by financing activities	2,906,012	2,562,023	3,415,817
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(218,395)	(1,316,540)	1,333,377
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	224,164	442,559	1,759,099
Cash and cash equivalents at beginning of period	442,559
Cash and cash equivalents at end of period	224,164	442,559
Cash paid (received) during the period for:
Interest - net of amount capitalized	901,884	843,228	803,923
Income taxes	28,354	98,377	(31,228)
Proceeds from Noncontrolling Interests	24,702	51,202	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	2,194
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	292,887	298,484	245,232
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	532,291	503,539	490,457
Deferred income taxes, investment tax credits, and non-current taxes accrued	78,958	100,459	87,019
Changes in working capital:
Receivables	(73,579)	17,682	(24,507)
Fuel inventory	(252)	(7,081)	(10,066)
Accounts payable	64,944	27,967	(22,773)
Taxes accrued	10,936	7,753	6
Interest accrued	1,708	(5,637)	(43)
Deferred fuel costs	(31,009)	(162,458)	(1,186)
Other working capital accounts	(29,789)	(53,343)	(11,061)
Changes in provisions for estimated losses	2,914	6,915	6,289
Increase (Decrease) in Other Regulatory Assets	120,603	(142,706)	165,534
Increase (Decrease) in Regulatory Liabilities	(264,054)	21,066	106,878
Changes in pension and other postretirement liabilities	(67,783)	(175,863)	42,576
Other	(302,163)	172,973	83,469
Net cash flow provided by operating activities	699,732	549,216	659,818
INVESTING ACTIVITIES
Construction/capital expenditures	(785,168)	(722,628)	(775,595)
Allowance for equity funds used during construction	17,787	15,273	15,019
Nuclear fuel purchases	(98,635)	(84,302)	(100,678)
Payment for purchase of plant or assets	(1,044)	(131,770)	(5,988)
Decrease (increase) in other investments	(1,626)	0	4,036
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	0	0	55,001
Proceeds from nuclear decommissioning trust fund sales	248,191	530,628	321,360
Investment in nuclear decommissioning trust funds	(269,497)	(524,783)	(336,392)
Net cash flow used in investing activities	(852,794)	(898,193)	(795,709)
Proceeds from the issuance of:
Long-term debt	232,731	719,284	1,071,121
Retirement of long-term debt	(28,521)	(728,917)	(632,175)
Other	(13,676)	38,291	2,188
Dividends paid:
Common stock	(86,000)	(50,000)	(95,000)
Net cash flow provided by financing activities	145,425	169,764	324,500
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(7,637)	(179,213)	188,609
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	5,278	12,915	192,128
Cash and cash equivalents at beginning of period	12,915
Cash and cash equivalents at end of period	5,278	12,915
Cash paid (received) during the period for:
Interest - net of amount capitalized	147,060	143,561	140,735
Income taxes	(2,753)	(18,933)	(21,971)
Proceeds from sale of nuclear fuel	37,198	16,279	30,638
Change in money pool receivable - net	0	3,110	(3,110)
Proceeds from Noncontrolling Interests	0	51,202	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	927
Change in money pool payable - net	40,891	139,904	(21,634)
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	855,870	653,984	1,082,352
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	852,521	818,389	783,616
Deferred income taxes, investment tax credits, and non-current taxes accrued	(70,379)	175,700	(356,256)
Changes in working capital:
Receivables	(53,434)	(58,466)	(79,451)
Fuel inventory	1,099	7,722	(9,067)
Accounts payable	(207,949)	358,536	160,659
Taxes accrued	(28,244)	21,631	50,576
Interest accrued	8,284	803	4,505
Deferred fuel costs	(113,809)	(43,124)	(57,895)
Other working capital accounts	(103,571)	(45,517)	(76,284)
Changes in provisions for estimated losses	291,824	(449)	(295,480)
Increase (Decrease) in Other Regulatory Assets	(720,487)	1,050,600	410,855
Increase (Decrease) in Regulatory Liabilities	(4,783)	(16,478)	71,698
Storm restoration costs approved for securitization recognized as regulatory asset	(1,190,338)	0	0
Changes in pension and other postretirement liabilities	(139,067)	(164,263)	12,199
Other	(358,997)	(394,658)	(192,669)
Net cash flow provided by operating activities	1,177,508	1,052,526	1,072,986
INVESTING ACTIVITIES
Construction/capital expenditures	(2,568,113)	(3,621,775)	(1,960,787)
Allowance for equity funds used during construction	26,252	28,648	38,151
Nuclear fuel purchases	(122,020)	(85,419)	(92,831)
Net proceeds (payments) from sale of assets	5,000	15,000	0
Payments for (Proceeds from) Productive Assets	0	0	(236,999)
Proceeds from insurance	5,695	0	0
Payment For Proceed From Other Investing Activities	0	8,691	5,090
Changes in securitization account	0	2,700	951
Payments To Storm Reserve Escrow Account	(1,293,633)	0	(1,488)
Receipts from storm reserve escrow account	1,000,228	0	297,363
Payments to Acquire Interest in Subsidiaries and Affiliates	(3,163,572)	0	0
Proceeds from Issuance of Trust Preferred Securities	1,390,587	0	0
Decrease (increase) in other investments	(5,475)	0	0
Proceeds from nuclear decommissioning trust fund sales	633,100	944,703	347,021
Investment in nuclear decommissioning trust funds	(667,947)	(1,004,888)	(372,227)
Net cash flow used in investing activities	(4,707,711)	(3,700,199)	(1,944,671)
Proceeds from the issuance of:
Long-term debt	2,942,771	3,769,166	3,675,083
Retirement of long-term debt	(3,167,832)	(1,895,091)	(1,962,635)
Proceeds from securitization	3,163,572	0	0
Other	27,618	(849)	(10,423)
Dividends paid:
Common stock	(624,000)	(60,000)	(21,500)
Net cash flow provided by financing activities	3,568,243	1,938,226	1,597,699
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	38,040	(709,447)	726,014
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	56,613	18,573	728,020
Cash and cash equivalents at beginning of period	18,573
Cash and cash equivalents at end of period	56,613	18,573
Cash paid (received) during the period for:
Interest - net of amount capitalized	353,697	337,926	318,352
Income taxes	(82,463)	(18,453)	(14,714)
Proceeds from sale of nuclear fuel	37,648	13,254	44,511
Change in money pool receivable - net	14,539	(1,113)	(13,426)
Proceeds from Contributions from Parent	1,000,000	125,000	0
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	1,267
Change in money pool payable - net	226,114	0	(82,826)
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	176,267	166,834	140,583
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	246,063	226,545	209,252
Deferred income taxes, investment tax credits, and non-current taxes accrued	54,850	64,868	36,827
Changes in working capital:
Receivables	(65,843)	10,260	(1,889)
Fuel inventory	(5,237)	6,806	(1,978)
Accounts payable	49,101	27,068	22,794
Taxes accrued	18,632	(1,811)	17,423
Interest accrued	925	(3,606)	1,989
Deferred fuel costs	(21,333)	(136,569)	(55,711)
Other working capital accounts	2,632	(9,522)	630
Changes in provisions for estimated losses	(519)	(8,476)	(3,517)
Increase (Decrease) in Other Regulatory Assets	57,028	(4,909)	89,369
Increase (Decrease) in Regulatory Liabilities	20,165	21,930	(18,672)
Changes in pension and other postretirement liabilities	(35,299)	(51,828)	11,319
Other	(22,273)	(33,552)	(30,633)
Net cash flow provided by operating activities	405,649	350,960	300,314
INVESTING ACTIVITIES
Construction/capital expenditures	(534,020)	(654,352)	(555,287)
Allowance for equity funds used during construction	6,125	8,101	6,726
Payment for purchase of plant or assets	(105,149)	0	(28,612)
Decrease (increase) in other investments	(1,273)	53	1,719
Net cash flow used in investing activities	(620,740)	(686,654)	(530,762)
Proceeds from the issuance of:
Long-term debt	249,266	398,284	165,385
Retirement of long-term debt	(100,000)	0	0
Other	10,475	1,535	6,964
Dividends paid:
Common stock	0	0	(10,000)
Net cash flow provided by financing activities	184,443	383,303	178,865
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(30,648)	47,609	(51,583)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	16,979	47,627	18
Cash and cash equivalents at beginning of period	47,627
Cash and cash equivalents at end of period	16,979	47,627
Cash paid (received) during the period for:
Interest - net of amount capitalized	83,291	76,245	64,536
Income taxes	(5,396)	(19,672)	(8,084)
Change in money pool receivable - net	13,577	(40,456)	44,692
Proceeds from Noncontrolling Interests	24,702	0	0
Change in money pool payable - net	0	(16,516)	16,516
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income	64,101	31,798	49,338
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	76,938	73,480	64,012
Deferred income taxes, investment tax credits, and non-current taxes accrued	18,685	12,573	3,938
Changes in working capital:
Receivables	6,128	(42,612)	(12,003)
Fuel inventory	(2,927)	(967)	(58)
Accounts payable	21	22,457	5,582
Taxes accrued	5,923	(315)	398
Interest accrued	89	(104)	1,179
Deferred fuel costs	(17,760)	9,737	(7,048)
Other working capital accounts	(790)	(3,233)	(13,156)
Changes in provisions for estimated losses	80,719	(83,569)	1,356
Increase (Decrease) in Other Regulatory Assets	(46,505)	(18,173)	7,427
Increase (Decrease) in Regulatory Liabilities	(8,639)	4,985	(4,728)
Storm restoration costs approved for securitization recognized as regulatory asset	95,920	0	0
Changes in pension and other postretirement liabilities	9,769	(32,144)	(14,063)
Other	10,919	(68,549)	3,296
Net cash flow provided by operating activities	363,763	78,808	64,024
INVESTING ACTIVITIES
Construction/capital expenditures	(217,864)	(220,284)	(228,983)
Allowance for equity funds used during construction	829	2,371	6,339
Payments to Acquire Buildings	0	0	(1,584)
Changes in securitization account	(236)	1,365	(1,375)
Payments To Storm Reserve Escrow Account	(200,000)	(7)	(433)
Receipts from storm reserve escrow account	125,000	83,045	0
Decrease (increase) in other investments	(675)	0	0
Net cash flow used in investing activities	(403,790)	(169,920)	(220,845)
Proceeds from the issuance of:
Long-term debt	0	183,403	138,925
Retirement of long-term debt	(12,207)	(36,873)	(56,593)
Other	15,162	(774)	146
Dividends paid:
Net cash flow provided by financing activities	1,629	133,948	150,830
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(38,398)	42,836	(5,991)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	4,464	42,862	26
Repayment of long-term payable due to Entergy Louisiana	(1,326)	(1,618)	(1,838)
Cash and cash equivalents at beginning of period	42,862
Cash and cash equivalents at end of period	4,464	42,862
Cash paid (received) during the period for:
Interest - net of amount capitalized	33,343	28,009	26,673
Income taxes	499	(3,839)	3,392
Change in money pool receivable - net	(110,844)	(36,410)	5,191
Proceeds from Contributions from Parent	0	0	60,000
Change in money pool payable - net	0	(10,190)	10,190
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	303,327	228,824	215,073
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	230,692	214,838	177,738
Deferred income taxes, investment tax credits, and non-current taxes accrued	41,648	48,813	36,033
Changes in working capital:
Receivables	(35,131)	(16,455)	(30,082)
Fuel inventory	15,962	10,819	(5,938)
Accounts payable	48,199	(5,718)	(23,692)
Taxes accrued	44,015	(3,420)	2,730
Interest accrued	4,926	(1,854)	1,864
Deferred fuel costs	(209,835)	(133,636)	72,355
Other working capital accounts	(19,574)	(12,105)	(11,837)
Changes in provisions for estimated losses	(649)	(140)	274
Increase (Decrease) in Other Regulatory Assets	157,349	(103,380)	12,065
Increase (Decrease) in Regulatory Liabilities	(30,499)	(28,747)	(57,477)
Storm restoration costs approved for securitization recognized as regulatory asset	153,383	0	0
Changes in pension and other postretirement liabilities	20,656	(42,502)	(28,825)
Other	344	5,164	(39,174)
Net cash flow provided by operating activities	409,427	356,933	375,325
INVESTING ACTIVITIES
Construction/capital expenditures	(696,879)	(702,754)	(895,857)
Allowance for equity funds used during construction	13,527	9,892	44,073
Payments to Acquire Buildings	0	(36,534)	(4,931)
Litigation Proceeds from Settlement Agreement, Investing Activities	4,134	0	0
Net proceeds (payments) from sale of assets	0	67,920	0
Changes in securitization account	15,750	9,604	1,487
Decrease (increase) in other investments	(1,133)	0	0
Net cash flow used in investing activities	(764,069)	(647,271)	(848,648)
Proceeds from the issuance of:
Long-term debt	606,168	127,931	937,725
Retirement of long-term debt	(66,514)	(269,435)	(367,565)
Other	5,111	6,848	(4,106)
Dividends paid:
Common stock	(105,000)	0	(30,000)
Preferred stock	(2,060)	(1,881)	(2,064)
Net cash flow provided by financing activities	358,111	41,770	708,990
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	3,469	(248,568)	235,667
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	3,497	28	248,596
Cash and cash equivalents at beginning of period	28
Cash and cash equivalents at end of period	3,497	28
Cash paid (received) during the period for:
Interest - net of amount capitalized	87,682	87,094	89,077
Income taxes	1,864	17,594	2,792
Change in money pool receivable - net	(99,468)	4,601	6,580
Proceeds from Contributions from Parent	0	95,000	175,000
Proceeds from Issuance of Preferred Stock and Preference Stock	0	3,713	0
Change in money pool payable - net	(79,594)	79,594	0
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	(276,593)	106,814	99,131
Adjustments to reconcile net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	194,411	198,067	184,429
Deferred income taxes, investment tax credits, and non-current taxes accrued	(85,720)	11,191	(455,732)
Changes in working capital:
Receivables	(19,530)	6,054	13,932
Accounts payable	(11,948)	23,973	(11,587)
Taxes accrued	(25,321)	(50,059)	69,145
Interest accrued	(123)	(1,008)	729
Other working capital accounts	(38,764)	25,096	(34,158)
Increase (Decrease) in Other Regulatory Assets	19,575	(143,417)	48,880
Increase (Decrease) in Regulatory Liabilities	21,252	40,884	140,965
Changes in pension and other postretirement liabilities	(35,354)	(49,308)	15,596
Other	(304,545)	253,910	119,032
Net cash flow provided by operating activities	7,280	201,211	(145,462)
INVESTING ACTIVITIES
Construction/capital expenditures	(164,797)	(100,474)	(193,857)
Allowance for equity funds used during construction	8,312	6,188	9,122
Nuclear fuel purchases	(96,659)	(45,180)	(94,991)
Decrease (increase) in other investments	300	(300)	0
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	0	0	5,459
Proceeds from nuclear decommissioning trust fund sales	346,504	1,022,170	418,943
Investment in nuclear decommissioning trust funds	(357,463)	(1,025,779)	(432,249)
Net cash flow used in investing activities	(264,184)	(193,392)	(206,443)
Proceeds from the issuance of:
Long-term debt	1,022,472	662,423	1,147,903
Retirement of long-term debt	(986,829)	(727,510)	(891,410)
Dividends paid:
Common stock	0	(96,000)	(80,653)
Net cash flow provided by financing activities	170,643	(161,087)	525,840
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect	(86,261)	(153,268)	173,935
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,940	89,201	242,469
Cash and cash equivalents at beginning of period	89,201
Cash and cash equivalents at end of period	2,940	89,201
Cash paid (received) during the period for:
Interest - net of amount capitalized	39,848	39,340	35,061
Income taxes	18,413	54,959	384,329
Proceeds from sale of nuclear fuel	18,855	21,724	25,836
Change in money pool receivable - net	(19,236)	(71,741)	55,294
Proceeds from Contributions from Parent	$ 135,000	$ 0	$ 350,000