Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
OPERATING ACTIVITIES
Consolidated net income	$ 704,312	$ 443,604
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	1,116,843	1,113,954
Deferred income taxes, investment tax credits, and non-current taxes accrued	43,502	(274,139)
Impairment of Long-Lived Assets Held-for-use	0	(163,321)
Changes in working capital:
Receivables	65,259	(224,499)
Fuel inventory	(43,493)	16,381
Accounts payable	(267,820)	42,915
Taxes accrued	(25,080)	(420)
Interest accrued	6,807	(11,947)
Deferred fuel costs	563,610	(667,247)
Other working capital accounts	(148,738)	(136,853)
Changes in provisions for estimated losses	(16,564)	295,987
Changes in other regulatory assets	391,188	724,227
Increase (Decrease) in Regulatory Liabilities	308,058	15,788
Storm restoration costs approved for securitization recognized as regulatory asset	(491,150)	(1,036,955)
Changes in pension and other postretirement liabilities	(128,379)	(167,682)
Other Operating Activities, Cash Flow Statement	(252,383)	846,170
Net cash flow provided by operating activities	1,825,972	815,963
INVESTING ACTIVITIES
Construction/capital expenditures	(2,311,465)	(2,720,596)
Allowance for equity funds used during construction	48,013	29,440
Nuclear fuel purchases	(134,698)	(114,843)
Payments for Nuclear Fuel	(134,698)	(114,843)
Proceeds from insurance	6,184	0
Proceeds from Legal Settlements	0	9,829
Payments to storm reserve escrow account	(9,080)	(1,290,314)
Decrease (increase) in other investments	262	(36,057)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	17,933	32,367
Proceeds from nuclear decommissioning trust fund sales	435,903	1,099,503
Investment in nuclear decommissioning trust funds	(486,853)	(1,121,635)
Changes in securitization account	7,803	337
Net cash flow used in investing activities	(2,445,431)	(3,223,982)
Payments for (Proceeds from) Other Investing Activities	(262)	36,057
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	(2,489,886)	(3,851,061)
Proceeds from Sale of Treasury Stock	4,078	26,952
Retirement of long-term debt	(2,273,773)	(4,293,423)
Proceeds from securitization	1,457,676	3,163,572
Dividends paid:
Common stock	(452,442)	(410,466)
Payments of Ordinary Dividends, Preferred Stock and Preference Stock	9,159	9,159
Other	66,898	10,523
Net cash flow provided by financing activities	1,589,637	2,545,349
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	970,178	137,330
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	1,194,342	579,889
Cash paid / (received) during the period for:
Interest - net of amount capitalized	490,201	454,666
Income taxes	31,231	(7,485)
Proceeds from (Repayments of) Short-Term Debt	280,765	196,694
Proceeds from Sale of Restricted Investments	0	1,000,218
Payments to Acquire Productive Assets	(30,433)	(105,149)
Net proceeds (payments) from sale of assets	11,000	(7,082)
Proceeds from Noncontrolling Interests	25,708	9,595
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	126,344	128,677
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	270,098	268,699
Deferred income taxes, investment tax credits, and non-current taxes accrued	33,572	27,814
Changes in working capital:
Receivables	21,444	(95,608)
Fuel inventory	(6,830)	7,316
Accounts payable	(43,953)	34,321
Taxes accrued	(4,315)	14,824
Interest accrued	10,421	1,585
Deferred fuel costs	123,264	(2,384)
Other working capital accounts	(30,581)	13,458
Changes in provisions for estimated losses	(26,606)	(4,119)
Changes in other regulatory assets	(51,960)	(30,484)
Increase (Decrease) in Regulatory Liabilities	97,349	(267,437)
Changes in pension and other postretirement liabilities	(18,948)	(31,762)
Other Operating Activities, Cash Flow Statement	(91,600)	321,622
Net cash flow provided by operating activities	407,699	386,522
INVESTING ACTIVITIES
Construction/capital expenditures	(524,723)	(351,907)
Allowance for equity funds used during construction	10,243	6,975
Nuclear fuel purchases	(73,912)	(53,256)
Payments for Nuclear Fuel	(73,912)	(53,256)
Proceeds from sale of nuclear fuel	17,614	37,198
Change in money pool receivable - net	0	(6,216)
Decrease (increase) in other investments	106	0
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	17,933	0
Proceeds from nuclear decommissioning trust fund sales	54,469	101,428
Investment in nuclear decommissioning trust funds	(65,584)	(111,032)
Net cash flow used in investing activities	(563,854)	(376,810)
Payments for (Proceeds from) Other Investing Activities	(106)	0
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	(661,923)	(223,882)
Retirement of long-term debt	(394,810)	(7,511)
Change in money pool payable - net	(28,468)	(139,904)
Dividends paid:
Common stock	(89,000)	(36,000)
Other	5,445	(4,825)
Net cash flow provided by financing activities	155,090	35,642
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(1,065)	45,354
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	4,213	58,269
Cash paid / (received) during the period for:
Interest - net of amount capitalized	79,716	70,803
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	507,284	467,519
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	423,535	414,975
Deferred income taxes, investment tax credits, and non-current taxes accrued	185	(198,525)
Changes in working capital:
Receivables	67,807	(114,357)
Fuel inventory	(14,907)	(183)
Accounts payable	(147,001)	(20,380)
Taxes accrued	48,015	(1,686)
Interest accrued	(5,396)	(3,263)
Deferred fuel costs	188,801	(367,321)
Other working capital accounts	(213,571)	(107,409)
Changes in provisions for estimated losses	3,909	294,067
Changes in other regulatory assets	448,144	859,908
Increase (Decrease) in Regulatory Liabilities	217,746	(40,596)
Storm restoration costs approved for securitization recognized as regulatory asset	(491,150)	(1,190,338)
Changes in pension and other postretirement liabilities	(12,364)	(17,123)
Other Operating Activities, Cash Flow Statement	(92,977)	231,425
Net cash flow provided by operating activities	928,060	206,713
INVESTING ACTIVITIES
Construction/capital expenditures	(889,118)	(1,565,051)
Allowance for equity funds used during construction	17,715	9,585
Nuclear fuel purchases	(88,403)	(77,561)
Payments for Nuclear Fuel	(88,403)	(77,561)
Proceeds from sale of nuclear fuel	16,733	37,634
Change in money pool receivable - net	(275,559)	7,162
Proceeds from insurance	6,184	0
Proceeds from Legal Settlements	0	5,695
Payments to storm reserve escrow account	(6,602)	(1,290,282)
Payments to Acquire Interest in Subsidiaries and Affiliates	1,457,676	3,163,572
Decrease (increase) in other investments	396	0
Proceeds from nuclear decommissioning trust fund sales	229,972	411,600
Investment in nuclear decommissioning trust funds	(258,420)	(419,873)
Net cash flow used in investing activities	(2,658,135)	(3,653,859)
Payments for (Proceeds from) Other Investing Activities	(396)	0
Proceeds from (Repurchase of) Equity	46,643	1,390,587
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	(833,484)	(1,777,192)
Retirement of long-term debt	(851,617)	(2,327,116)
Proceeds from securitization	1,457,676	3,163,572
Proceeds from Contributed Capital	1,457,676	1,000,000
Change in money pool payable - net	(226,114)	0
Dividends paid:
Common stock	(160,250)	(125,000)
Other	19,633	6,096
Net cash flow provided by financing activities	2,530,488	3,494,744
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	800,413	47,598
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	857,026	66,171
Cash paid / (received) during the period for:
Interest - net of amount capitalized	192,861	183,686
Income taxes	(6,037)	0
Proceeds from Sale of Restricted Investments	0	1,000,217
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	79,205	79,309
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	129,375	120,702
Deferred income taxes, investment tax credits, and non-current taxes accrued	26,736	17,628
Changes in working capital:
Receivables	(6,155)	(38,137)
Fuel inventory	(5,919)	(5,352)
Accounts payable	(32,930)	23,252
Taxes accrued	(45,044)	(36,021)
Interest accrued	(724)	498
Deferred fuel costs	149,189	(124,752)
Other working capital accounts	(25,035)	(36,211)
Changes in provisions for estimated losses	1,731	(194)
Changes in other regulatory assets	(39,846)	3,332
Increase (Decrease) in Regulatory Liabilities	(55,443)	15,441
Changes in pension and other postretirement liabilities	(8,261)	(8,004)
Other Operating Activities, Cash Flow Statement	6,669	8,913
Net cash flow provided by operating activities	173,548	20,404
INVESTING ACTIVITIES
Construction/capital expenditures	(276,530)	(230,683)
Allowance for equity funds used during construction	4,053	2,573
Change in money pool receivable - net	26,879	37,472
Decrease (increase) in other investments	(686)	(31)
Net cash flow used in investing activities	(276,717)	(295,818)
Payments for (Proceeds from) Other Investing Activities	686	31
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	(396,861)	(249,746)
Retirement of long-term debt	(400,000)	0
Change in money pool payable - net	104,624	0
Dividends paid:
Common stock	(40,000)	0
Other	7,450	(5,446)
Net cash flow provided by financing activities	94,643	253,895
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(8,526)	(21,519)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	8,453	26,108
Cash paid / (received) during the period for:
Interest - net of amount capitalized	48,771	39,620
Payments to Acquire Productive Assets	(30,433)	(105,149)
Proceeds from Noncontrolling Interests	25,708	9,595
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income	23,999	34,672
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	39,639	37,766
Deferred income taxes, investment tax credits, and non-current taxes accrued	10,247	16,265
Changes in working capital:
Receivables	23,357	9,240
Fuel inventory	3,868	(844)
Accounts payable	(24,536)	3,909
Taxes accrued	(657)	(2,524)
Interest accrued	194	(361)
Deferred fuel costs	4,315	(31,599)
Other working capital accounts	(14,016)	(9,725)
Changes in provisions for estimated losses	3,550	6,319
Changes in other regulatory assets	2,930	24,541
Increase (Decrease) in Regulatory Liabilities	30,722	(15,456)
Changes in pension and other postretirement liabilities	(2,454)	(4,741)
Other Operating Activities, Cash Flow Statement	(208)	(11,839)
Net cash flow provided by operating activities	100,950	55,623
INVESTING ACTIVITIES
Construction/capital expenditures	(88,480)	(115,552)
Allowance for equity funds used during construction	730	(80)
Change in money pool receivable - net	101,767	33,473
Decrease (increase) in other investments	(1,672)	0
Changes in securitization account	555	259
Net cash flow used in investing activities	12,900	(81,900)
Payments for (Proceeds from) Other Investing Activities	1,672	0
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	(14,641)	0
Retirement of long-term debt	(6,073)	(5,916)
Dividends paid:
Other	(511)	682
Net cash flow provided by financing activities	23,057	9,766
Proceeds from Contribution in Aid of Construction	15,000	15,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	136,907	(16,511)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	141,371	26,351
Cash paid / (received) during the period for:
Interest - net of amount capitalized	18,719	17,055
Income taxes	2	0
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	130,130	147,888
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	125,400	113,309
Deferred income taxes, investment tax credits, and non-current taxes accrued	23,480	24,421
Changes in working capital:
Receivables	12,534	(55,237)
Fuel inventory	(18,082)	16,888
Accounts payable	(5,725)	79,801
Taxes accrued	(45,549)	(7,158)
Interest accrued	(604)	1,923
Deferred fuel costs	98,042	(141,192)
Other working capital accounts	3,129	2,388
Changes in provisions for estimated losses	455	(10)
Changes in other regulatory assets	(19,688)	(143,294)
Increase (Decrease) in Regulatory Liabilities	(9,929)	(14,444)
Storm restoration costs approved for securitization recognized as regulatory asset	0	153,383
Changes in pension and other postretirement liabilities	(4,191)	(9,475)
Other Operating Activities, Cash Flow Statement	18,864	2,536
Net cash flow provided by operating activities	308,266	171,727
INVESTING ACTIVITIES
Construction/capital expenditures	(448,550)	(304,702)
Allowance for equity funds used during construction	11,849	5,759
Change in money pool receivable - net	98,569	(1,643)
Proceeds from Legal Settlements	0	4,134
Decrease (increase) in other investments	86	(30,000)
Changes in securitization account	7,248	79
Net cash flow used in investing activities	(319,798)	(326,373)
Payments for (Proceeds from) Other Investing Activities	(86)	30,000
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	0	(286,842)
Retirement of long-term debt	(8,856)	(29,064)
Change in money pool payable - net	0	(79,594)
Dividends paid:
Other	20,749	33
Net cash flow provided by financing activities	10,857	177,193
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(675)	22,547
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,822	22,575
Cash paid / (received) during the period for:
Interest - net of amount capitalized	53,019	40,816
Income taxes	30,500	1,085
Dividends Paid, Preferred Stock	(1,036)	(1,024)
Proceeds from Sale of Productive Assets	11,000	0
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	53,304	(348,716)
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	125,741	104,296
Deferred income taxes, investment tax credits, and non-current taxes accrued	17,865	(124,202)
Changes in working capital:
Receivables	13,558	(14,753)
Accounts payable	(26,332)	(27,368)
Taxes accrued	(10,704)	(2,664)
Interest accrued	3,035	(247)
Other working capital accounts	5,569	(41,234)
Changes in other regulatory assets	(16,683)	(22,768)
Increase (Decrease) in Regulatory Liabilities	27,611	338,280
Changes in pension and other postretirement liabilities	(4,758)	(7,494)
Other Operating Activities, Cash Flow Statement	(127,635)	229,515
Net cash flow provided by operating activities	60,571	82,645
INVESTING ACTIVITIES
Construction/capital expenditures	(54,140)	(100,953)
Allowance for equity funds used during construction	3,423	4,628
Nuclear fuel purchases	(31,822)	(77,704)
Payments for Nuclear Fuel	(31,822)	(77,704)
Proceeds from sale of nuclear fuel	25,091	18,845
Change in money pool receivable - net	80,101	60,334
Decrease (increase) in other investments	(4)	0
Proceeds from nuclear decommissioning trust fund sales	151,463	177,584
Investment in nuclear decommissioning trust funds	(162,850)	(176,735)
Net cash flow used in investing activities	11,262	(94,001)
Payments for (Proceeds from) Other Investing Activities	4	0
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	(585,898)	(556,696)
Retirement of long-term debt	(612,416)	(499,816)
Dividends paid:
Net cash flow provided by financing activities	(26,518)	56,880
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	45,315	45,524
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	48,255	134,725
Cash paid / (received) during the period for:
Interest - net of amount capitalized	$ 20,289	$ 19,454