Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
OPERATING ACTIVITIES
Consolidated net income	$ 999,486	$ 873,333
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	1,667,756	1,696,323
Deferred income taxes, investment tax credits, and non-current taxes accrued	(76,672)	280,193
Impairment of Long-Lived Assets Held-for-use	(163,464)	345,200
Changes in working capital:
Receivables	(368,772)	(245,082)
Fuel inventory	19,433	46,951
Accounts payable	(59,787)	362,529
Taxes accrued	89,554	19,611
Interest accrued	38,361	29,313
Deferred fuel costs	(821,386)	(356,833)
Other working capital accounts	(124,677)	(94,791)
Changes in provisions for estimated losses	297,842	(72,577)
Changes in other regulatory assets	587,128	(631,172)
Increase (Decrease) in Regulatory Liabilities	(116,315)	117,301
Storm restoration costs approved for securitization recognized as regulatory asset	(1,036,955)	0
Changes in pension and other postretirement liabilities	(258,141)	(422,028)
Other Noncash Income (Expense)	1,136,050	62,712
Net cash flow provided by operating activities	1,809,441	2,010,983
INVESTING ACTIVITIES
Construction/capital expenditures	(3,853,121)	(3,925,632)
Allowance for equity funds used during construction	49,685	48,629
Payments to Acquire Productive Assets	(106,193)	(36,534)
Net proceeds (payments) from sale of assets	(7,082)	17,421
Nuclear fuel purchases	(125,619)	(127,606)
Payments for Nuclear Fuel	(125,619)	(127,606)
Proceeds from insurance	9,829	0
Payments to storm reserve escrow account	(1,291,593)	(23)
Receipts from storm reserve escrow account	1,000,278	83,105
Decrease (increase) in other investments	(33,238)	4,239
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	32,367	49,236
Proceeds from nuclear decommissioning trust fund sales	1,377,304	4,475,142
Investment in nuclear decommissioning trust funds	(1,422,808)	(4,463,814)
Changes in securitization account	1,224	13,862
Net cash flow used in investing activities	(4,368,967)	(3,861,975)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	5,316,693	6,269,152
Proceeds from Sale of Treasury Stock	31,802	5,613
Proceeds from Issuance of Common Stock	0	26,817
Retirement of long-term debt	(4,998,642)	(4,046,791)
Proceeds from securitization	3,163,572	0
Proceeds from Noncontrolling Interests	9,595	0
Changes in credit borrowings and commercial paper - net	185,455	(621,168)
Dividends paid:
Common stock	(615,937)	(572,131)
Other	41,659	44,176
Net cash flow provided by financing activities	3,120,458	1,091,929
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	560,932	(759,063)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	1,003,491	1,000,036
Cash paid / (received) during the period for:
Interest - net of amount capitalized	631,211	590,581
Income taxes	(7,412)	29,454
Dividends Paid, Preferred Stock	(13,739)	(13,739)
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	278,024	304,521
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	403,929	380,481
Deferred income taxes, investment tax credits, and non-current taxes accrued	85,012	105,147
Changes in working capital:
Receivables	(129,679)	(107,075)
Fuel inventory	7,430	26,521
Accounts payable	77,849	15,485
Taxes accrued	(4,838)	(19,899)
Interest accrued	32,360	25,616
Deferred fuel costs	(27,724)	(113,004)
Other working capital accounts	13,963	(26,618)
Changes in provisions for estimated losses	(1,840)	(1,266)
Changes in other regulatory assets	(54,449)	74,022
Increase (Decrease) in Regulatory Liabilities	(305,972)	(46,061)
Changes in pension and other postretirement liabilities	(58,966)	(81,913)
Other Noncash Income (Expense)	360,258	(82,880)
Net cash flow provided by operating activities	675,357	453,077
INVESTING ACTIVITIES
Construction/capital expenditures	(552,919)	(495,203)
Allowance for equity funds used during construction	11,786	10,714
Payments to Acquire Productive Assets	(1,044)	0
Nuclear fuel purchases	(56,984)	(72,528)
Payments for Nuclear Fuel	(56,984)	(72,528)
Proceeds from sale of nuclear fuel	37,198	16,239
Change in money pool receivable - net	(1,808)	(4,191)
Proceeds from nuclear decommissioning trust fund sales	174,893	434,674
Investment in nuclear decommissioning trust funds	(190,244)	(436,658)
Net cash flow used in investing activities	(579,122)	(546,953)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	225,625	708,126
Retirement of long-term debt	(21,316)	(717,214)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	480	0
Change in money pool payable - net	(139,904)	0
Dividends paid:
Common stock	(86,000)	(25,000)
Other	(7,944)	33,173
Net cash flow provided by financing activities	(30,019)	(915)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	66,216	(94,791)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	79,131	97,337
Cash paid / (received) during the period for:
Interest - net of amount capitalized	77,625	77,434
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	741,909	535,028
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	633,124	607,299
Deferred income taxes, investment tax credits, and non-current taxes accrued	(84,719)	159,723
Changes in working capital:
Receivables	(193,374)	(91,771)
Fuel inventory	1,920	5,763
Accounts payable	(117,199)	450,064
Taxes accrued	(9,415)	94,751
Interest accrued	3,244	4,464
Deferred fuel costs	(272,259)	(49,786)
Other working capital accounts	(161,058)	(41,769)
Changes in provisions for estimated losses	292,013	(764)
Changes in other regulatory assets	741,131	(938,646)
Increase (Decrease) in Regulatory Liabilities	(92,554)	92,138
Storm restoration costs approved for securitization recognized as regulatory asset	(1,190,338)	0
Changes in pension and other postretirement liabilities	(29,538)	(68,132)
Other Noncash Income (Expense)	358,570	289,625
Net cash flow provided by operating activities	621,457	1,047,987
INVESTING ACTIVITIES
Construction/capital expenditures	(2,099,909)	(2,147,096)
Allowance for equity funds used during construction	17,865	20,183
Proceeds from Sale of Productive Assets	0	15,000
Nuclear fuel purchases	(84,606)	(75,349)
Payments for Nuclear Fuel	(84,606)	(75,349)
Proceeds from sale of nuclear fuel	37,634	13,201
Change in money pool receivable - net	9,757	(6,635)
Proceeds from insurance	5,695	0
Payments to storm reserve escrow account	(1,291,431)	0
Payments to Acquire Interest in Subsidiaries and Affiliates	3,163,572	0
Receipts from storm reserve escrow account	1,000,228	0
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	0	8,690
Proceeds from nuclear decommissioning trust fund sales	520,412	505,840
Investment in nuclear decommissioning trust funds	(540,653)	(555,749)
Changes in securitization account	0	(2,815)
Net cash flow used in investing activities	(4,197,993)	(2,224,730)
Proceeds from (Repurchase of) Equity	1,390,587	0
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	2,673,246	2,404,102
Retirement of long-term debt	(2,734,524)	(1,628,383)
Proceeds from securitization	3,163,572	0
Proceeds from Contributed Capital	1,000,000	0
Dividends paid:
Common stock	(374,500)	(60,000)
Other	25,866	(303)
Net cash flow provided by financing activities	3,753,660	715,416
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	177,124	(461,327)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	195,697	266,693
Cash paid / (received) during the period for:
Interest - net of amount capitalized	266,522	247,878
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	154,198	139,983
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	182,623	168,324
Deferred income taxes, investment tax credits, and non-current taxes accrued	45,811	53,629
Changes in working capital:
Receivables	(50,712)	(36,754)
Fuel inventory	(2,856)	5,564
Accounts payable	34,776	48,413
Taxes accrued	(12,542)	(30,881)
Interest accrued	11,171	4,632
Deferred fuel costs	(214,459)	(95,310)
Other working capital accounts	(23,012)	(40,911)
Changes in provisions for estimated losses	(461)	(8,087)
Changes in other regulatory assets	(53,830)	(15,366)
Increase (Decrease) in Regulatory Liabilities	31,682	49,036
Changes in pension and other postretirement liabilities	(18,489)	(17,454)
Other Noncash Income (Expense)	17,691	24,950
Net cash flow provided by operating activities	101,591	249,768
INVESTING ACTIVITIES
Construction/capital expenditures	(368,151)	(473,956)
Allowance for equity funds used during construction	4,179	5,703
Payments to Acquire Productive Assets	(105,149)	0
Change in money pool receivable - net	40,456	0
Decrease (increase) in other investments	(111)	55
Net cash flow used in investing activities	(428,776)	(468,198)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	249,298	200,539
Proceeds from Noncontrolling Interests	9,595	0
Change in money pool payable - net	19,319	18,087
Dividends paid:
Other	4,243	(186)
Net cash flow provided by financing activities	282,455	218,440
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(44,730)	10
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	2,897	28
Cash paid / (received) during the period for:
Interest - net of amount capitalized	50,719	49,080
Income taxes	0	(8,045)
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income	61,587	22,397
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	57,322	54,758
Deferred income taxes, investment tax credits, and non-current taxes accrued	22,429	11,261
Changes in working capital:
Receivables	(9,022)	(24,959)
Fuel inventory	(3,245)	79
Accounts payable	3,319	22,863
Taxes accrued	(4,241)	(1,699)
Interest accrued	(204)	(2,796)
Deferred fuel costs	(33,301)	4,280
Other working capital accounts	(5,973)	(7,025)
Changes in provisions for estimated losses	8,409	(62,293)
Changes in other regulatory assets	24,449	18,412
Increase (Decrease) in Regulatory Liabilities	(8,921)	11,757
Changes in pension and other postretirement liabilities	(6,598)	(11,220)
Other Noncash Income (Expense)	(9,816)	41,635
Net cash flow provided by operating activities	96,194	77,450
INVESTING ACTIVITIES
Construction/capital expenditures	(163,403)	(139,153)
Allowance for equity funds used during construction	316	1,067
Change in money pool receivable - net	35,977	(1,995)
Payments to storm reserve escrow account	0	(7)
Receipts from storm reserve escrow account	0	83,045
Changes in securitization account	(3,474)	(2,380)
Net cash flow used in investing activities	(130,584)	(59,423)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt		19,251
Retirement of long-term debt	0
Change in money pool payable - net	0	(10,190)
Dividends paid:
Other	9,509	(726)
Net cash flow provided by financing activities	9,509	8,335
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(24,881)	26,362
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	17,981	26,388
Cash paid / (received) during the period for:
Interest - net of amount capitalized	25,231	23,015
Income taxes	0	324
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	265,890	189,689
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	171,781	159,234
Deferred income taxes, investment tax credits, and non-current taxes accrued	57,532	31,518
Changes in working capital:
Receivables	(63,743)	(50,538)
Fuel inventory	16,868	7,232
Accounts payable	77,740	20,506
Taxes accrued	2,520	6,003
Interest accrued	(4,832)	(12,808)
Deferred fuel costs	(273,644)	(103,013)
Other working capital accounts	(11,927)	(19,522)
Changes in provisions for estimated losses	(414)	67
Changes in other regulatory assets	(130,042)	72,760
Increase (Decrease) in Regulatory Liabilities	(23,014)	(21,469)
Storm restoration costs approved for securitization recognized as regulatory asset	153,383	0
Changes in pension and other postretirement liabilities	(12,458)	(16,489)
Other Noncash Income (Expense)	(905)	(8,190)
Net cash flow provided by operating activities	224,735	254,980
INVESTING ACTIVITIES
Construction/capital expenditures	(469,630)	(541,161)
Allowance for equity funds used during construction	9,375	6,951
Proceeds from Sale of Productive Assets	0	67,920
Payments to Acquire Productive Assets	0	(36,534)
Change in money pool receivable - net	(5,146)	4,601
Proceeds from insurance	4,134	0
Decrease (increase) in other investments	(31,160)	0
Changes in securitization account	4,698	19,057
Net cash flow used in investing activities	(487,729)	(479,166)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	606,444	127,931
Retirement of long-term debt	(54,257)	(269,435)
Change in money pool payable - net	(79,594)	20,075
Dividends paid:
Other	6,019	13,455
Net cash flow provided by financing activities	477,070	(24,385)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	214,076	(248,571)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	214,104	25
Cash paid / (received) during the period for:
Interest - net of amount capitalized	71,311	77,110
Income taxes	1,085	11,710
Dividends Paid, Preferred Stock	(1,542)	(1,411)
Proceeds from Contributions from Parent	0	85,000
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	(321,359)	81,693
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	163,043	151,345
Deferred income taxes, investment tax credits, and non-current taxes accrued	(129,093)	17,233
Changes in working capital:
Receivables	(29,703)	(5,216)
Accounts payable	(7,193)	(4,292)
Taxes accrued	9,106	(35,063)
Interest accrued	(972)	(1,557)
Other working capital accounts	(34,961)	5,133
Changes in other regulatory assets	(23,107)	71,486
Increase (Decrease) in Regulatory Liabilities	282,463	31,909
Changes in pension and other postretirement liabilities	(14,704)	(20,721)
Other Noncash Income (Expense)	284,219	(161,274)
Net cash flow provided by operating activities	177,739	130,676
INVESTING ACTIVITIES
Construction/capital expenditures	(132,100)	(64,196)
Allowance for equity funds used during construction	6,164	4,012
Nuclear fuel purchases	(77,707)	(27,958)
Payments for Nuclear Fuel	(77,707)	(27,958)
Proceeds from sale of nuclear fuel	18,845	21,657
Change in money pool receivable - net	70,943	(8,334)
Proceeds from nuclear decommissioning trust fund sales	273,108	769,979
Investment in nuclear decommissioning trust funds	(277,916)	(770,763)
Net cash flow used in investing activities	(118,663)	(75,603)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	955,587	565,610
Retirement of long-term debt	(908,629)	(626,010)
Dividends paid:
Common stock	0	(74,000)
Net cash flow provided by financing activities	46,958	(134,400)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	106,034	(79,327)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	195,235	163,142
Cash paid / (received) during the period for:
Interest - net of amount capitalized	30,231	30,335
Income taxes	$ 0	$ 39,085