Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
OPERATING ACTIVITIES
Consolidated net income	$ 443,604	$ 337,750
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	1,113,954	1,150,294
Deferred income taxes, investment tax credits, and non-current taxes accrued	(274,139)	115,274
Impairment of Long-Lived Assets Held-for-use	(163,321)	345,339
Changes in working capital:
Receivables	(224,499)	(154,277)
Fuel inventory	16,381	16,718
Accounts payable	42,915	(131,414)
Taxes accrued	(420)	(69,711)
Interest accrued	(11,947)	(162)
Deferred fuel costs	(667,247)	(286,116)
Other working capital accounts	(136,853)	(86,774)
Changes in provisions for estimated losses	295,987	(54,278)
Changes in other regulatory assets	724,227	93,776
Increase (Decrease) in Regulatory Liabilities	15,788	170,932
Storm restoration costs approved for securitization recognized as regulatory asset	(1,036,955)	0
Changes in pension and other postretirement liabilities	(167,682)	(259,593)
Other Noncash Income (Expense)	846,170	(441,211)
Net cash flow provided by operating activities	815,963	746,547
INVESTING ACTIVITIES
Construction/capital expenditures	(2,720,596)	(2,883,376)
Allowance for equity funds used during construction	29,440	31,449
Proceeds from Sale of Productive Assets		22,421
Payments to Acquire Productive Assets	(105,149)	(36,534)
Net proceeds (payments) from sale of assets	(7,082)
Nuclear fuel purchases	(114,843)	(73,858)
Payments for Nuclear Fuel	(114,843)	(73,858)
Proceeds from insurance	9,829	0
Payments to storm reserve escrow account	(1,290,314)	(17)
Receipts from storm reserve escrow account	1,000,218	44,205
Decrease (increase) in other investments	(36,057)	10,753
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	32,367	15,735
Proceeds from nuclear decommissioning trust fund sales	1,099,503	3,837,482
Investment in nuclear decommissioning trust funds	(1,121,635)	(3,804,170)
Changes in securitization account	337	9,685
Net cash flow used in investing activities	(3,223,982)	(2,826,225)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	3,851,061	5,008,330
Proceeds from Sale of Treasury Stock	26,952	4,039
Proceeds from Issuance of Common Stock	0	26,817
Retirement of long-term debt	(4,293,423)	(2,900,566)
Proceeds from securitization	3,163,572	0
Proceeds from Noncontrolling Interests	9,595	0
Changes in credit borrowings and commercial paper - net	196,694	(761,244)
Dividends paid:
Common stock	(410,466)	(381,224)
Other	10,523	20,467
Net cash flow provided by financing activities	2,545,349	1,007,460
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	137,330	(1,072,218)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	579,889	686,881
Cash paid / (received) during the period for:
Interest - net of amount capitalized	454,666	428,301
Income taxes	(7,485)	27,488
Dividends Paid, Preferred Stock	(9,159)	(9,159)
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	128,677	149,630
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	268,699	252,537
Deferred income taxes, investment tax credits, and non-current taxes accrued	27,814	50,780
Changes in working capital:
Receivables	(95,608)	(86,447)
Fuel inventory	7,316	12,996
Accounts payable	34,321	27,920
Taxes accrued	14,824	(6,529)
Interest accrued	1,585	(2,490)
Deferred fuel costs	(2,384)	(74,857)
Other working capital accounts	13,458	(36,703)
Changes in provisions for estimated losses	(4,119)	(6,122)
Changes in other regulatory assets	(30,484)	32,837
Increase (Decrease) in Regulatory Liabilities	(267,437)	17,776
Changes in pension and other postretirement liabilities	(31,762)	(46,940)
Other Noncash Income (Expense)	321,622	(119,755)
Net cash flow provided by operating activities	386,522	164,633
INVESTING ACTIVITIES
Construction/capital expenditures	(351,907)	(322,044)
Allowance for equity funds used during construction	6,975	6,601
Nuclear fuel purchases	(53,256)	(25,466)
Payments for Nuclear Fuel	(53,256)	(25,466)
Proceeds from sale of nuclear fuel	37,198	16,239
Change in money pool receivable - net	(6,216)	(5,086)
Proceeds from nuclear decommissioning trust fund sales	101,428	227,807
Investment in nuclear decommissioning trust funds	(111,032)	(224,757)
Net cash flow used in investing activities	(376,810)	(326,706)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	223,882	694,137
Retirement of long-term debt	(7,511)	(618,511)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	190	0
Change in money pool payable - net	(139,904)	0
Dividends paid:
Common stock	(36,000)	0
Other	(4,635)	19,445
Net cash flow provided by financing activities	35,642	95,071
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	45,354	(67,002)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	58,269	125,126
Cash paid / (received) during the period for:
Interest - net of amount capitalized	70,803	70,700
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	467,519	310,553
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	414,975	402,106
Deferred income taxes, investment tax credits, and non-current taxes accrued	(198,525)	90,537
Changes in working capital:
Receivables	(114,357)	(66,281)
Fuel inventory	(183)	(1,240)
Accounts payable	(20,380)	25,685
Taxes accrued	(1,686)	54,850
Interest accrued	(3,263)	2,162
Deferred fuel costs	(367,321)	(96,429)
Other working capital accounts	(107,409)	(36,605)
Changes in provisions for estimated losses	294,067	(291)
Changes in other regulatory assets	859,908	(124,939)
Increase (Decrease) in Regulatory Liabilities	(40,596)	87,823
Storm restoration costs approved for securitization recognized as regulatory asset	(1,190,338)	0
Changes in pension and other postretirement liabilities	(17,123)	(43,936)
Other Noncash Income (Expense)	231,425	(84,588)
Net cash flow provided by operating activities	206,713	519,407
INVESTING ACTIVITIES
Construction/capital expenditures	(1,565,051)	(1,655,993)
Allowance for equity funds used during construction	9,585	12,936
Nuclear fuel purchases	(77,561)	(63,479)
Payments for Nuclear Fuel	(77,561)	(63,479)
Proceeds from sale of nuclear fuel	37,634	0
Change in money pool receivable - net	7,162	(90,225)
Proceeds from insurance	5,695	0
Payments to storm reserve escrow account	(1,290,282)	0
Payments to Acquire Interest in Subsidiaries and Affiliates	3,163,572	0
Receipts from storm reserve escrow account	1,000,217	0
Proceeds from nuclear decommissioning trust fund sales	411,600	459,326
Investment in nuclear decommissioning trust funds	(419,873)	(498,332)
Changes in securitization account	0	(956)
Net cash flow used in investing activities	(3,653,859)	(1,836,723)
Proceeds from (Repurchase of) Equity	1,390,587	0
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	1,777,192	2,097,214
Retirement of long-term debt	(2,327,116)	(1,296,875)
Proceeds from securitization	3,163,572	0
Proceeds from Contributed Capital	1,000,000	0
Dividends paid:
Common stock	(125,000)	0
Other	6,096	(4,169)
Net cash flow provided by financing activities	3,494,744	796,170
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	47,598	(521,146)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	66,171	206,874
Cash paid / (received) during the period for:
Interest - net of amount capitalized	183,686	165,480
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	79,309	77,388
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	120,702	111,194
Deferred income taxes, investment tax credits, and non-current taxes accrued	17,628	33,499
Changes in working capital:
Receivables	(38,137)	(9,164)
Fuel inventory	(5,352)	954
Accounts payable	23,252	38,287
Taxes accrued	(36,021)	(49,438)
Interest accrued	498	(4,623)
Deferred fuel costs	(124,752)	(46,714)
Other working capital accounts	(36,211)	(27,684)
Changes in provisions for estimated losses	(194)	(7,860)
Changes in other regulatory assets	3,332	(13,050)
Increase (Decrease) in Regulatory Liabilities	15,441	13,520
Changes in pension and other postretirement liabilities	(8,004)	(10,086)
Other Noncash Income (Expense)	8,913	15,413
Net cash flow provided by operating activities	20,404	121,636
INVESTING ACTIVITIES
Construction/capital expenditures	(230,683)	(327,163)
Allowance for equity funds used during construction	2,573	3,697
Payments to Acquire Productive Assets	(105,149)	0
Change in money pool receivable - net	37,472	0
Decrease (increase) in other investments	(31)	6
Net cash flow used in investing activities	(295,818)	(323,460)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	249,746	200,543
Proceeds from Noncontrolling Interests	9,595	0
Change in money pool payable - net	0	482
Dividends paid:
Other	(5,446)	792
Net cash flow provided by financing activities	253,895	201,817
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(21,519)	(7)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	26,108	11
Cash paid / (received) during the period for:
Interest - net of amount capitalized	39,620	39,925
Income taxes	0	(8,045)
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income	34,672	6,402
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	37,766	36,314
Deferred income taxes, investment tax credits, and non-current taxes accrued	16,265	4,907
Changes in working capital:
Receivables	9,240	(15,306)
Fuel inventory	(844)	725
Accounts payable	3,909	(7,309)
Taxes accrued	(2,524)	948
Interest accrued	(361)	(1,315)
Deferred fuel costs	(31,599)	4,423
Other working capital accounts	(9,725)	(11,944)
Changes in provisions for estimated losses	6,319	(40,152)
Changes in other regulatory assets	24,541	35,038
Increase (Decrease) in Regulatory Liabilities	(15,456)	4,823
Changes in pension and other postretirement liabilities	(4,741)	(7,352)
Other Noncash Income (Expense)	(11,839)	16,986
Net cash flow provided by operating activities	55,623	27,188
INVESTING ACTIVITIES
Construction/capital expenditures	(115,552)	(94,173)
Allowance for equity funds used during construction	(80)	634
Change in money pool receivable - net	33,473	0
Payments to storm reserve escrow account	0	(7)
Receipts from storm reserve escrow account	0	44,200
Changes in securitization account	259	686
Net cash flow used in investing activities	(81,900)	(48,660)
Proceeds from the issuance of:
Retirement of long-term debt	(5,916)	(5,749)
Change in money pool payable - net	0	27,684
Dividends paid:
Other	15,682	(463)
Net cash flow provided by financing activities	9,766	21,472
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	(16,511)	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	26,351	26
Cash paid / (received) during the period for:
Interest - net of amount capitalized	17,055	14,684
Income taxes	0	324
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	147,888	94,848
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	113,309	104,523
Deferred income taxes, investment tax credits, and non-current taxes accrued	24,421	5,237
Changes in working capital:
Receivables	(55,237)	(33,522)
Fuel inventory	16,888	3,606
Accounts payable	79,801	1,530
Taxes accrued	(7,158)	(4,057)
Interest accrued	1,923	(1,072)
Deferred fuel costs	(141,192)	(72,537)
Other working capital accounts	2,388	(3,285)
Changes in provisions for estimated losses	(10)	314
Changes in other regulatory assets	(143,294)	43,619
Increase (Decrease) in Regulatory Liabilities	(14,444)	(2,036)
Storm restoration costs approved for securitization recognized as regulatory asset	153,383	0
Changes in pension and other postretirement liabilities	(9,475)	(11,050)
Other Noncash Income (Expense)	2,536	(6,583)
Net cash flow provided by operating activities	171,727	119,535
INVESTING ACTIVITIES
Construction/capital expenditures	(304,702)	(401,362)
Allowance for equity funds used during construction	5,759	5,115
Proceeds from Sale of Productive Assets	0	67,920
Payments to Acquire Productive Assets	0	(36,534)
Change in money pool receivable - net	(1,643)	4,601
Proceeds from insurance	4,134	0
Decrease (increase) in other investments	(30,000)	0
Changes in securitization account	79	9,955
Net cash flow used in investing activities	(326,373)	(350,305)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	286,842	0
Retirement of long-term debt	(29,064)	(170,429)
Change in money pool payable - net	(79,594)	63,437
Dividends paid:
Other	33	5,132
Net cash flow provided by financing activities	177,193	(17,801)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	22,547	(248,571)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	22,575	25
Cash paid / (received) during the period for:
Interest - net of amount capitalized	40,816	44,760
Income taxes	1,085	9,710
Dividends Paid, Preferred Stock	(1,024)	(941)
Proceeds from Contributions from Parent	0	85,000
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	(348,716)	54,194
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	104,296	101,640
Deferred income taxes, investment tax credits, and non-current taxes accrued	(124,202)	(3,052)
Changes in working capital:
Receivables	(14,753)	(15,877)
Accounts payable	(27,368)	(3,449)
Taxes accrued	(2,664)	(27,698)
Interest accrued	(247)	(1,102)
Other working capital accounts	(41,234)	442
Changes in other regulatory assets	(22,768)	60,949
Increase (Decrease) in Regulatory Liabilities	338,280	49,033
Changes in pension and other postretirement liabilities	(7,494)	(12,243)
Other Noncash Income (Expense)	229,515	(158,386)
Net cash flow provided by operating activities	82,645	44,451
INVESTING ACTIVITIES
Construction/capital expenditures	(100,953)	(38,268)
Allowance for equity funds used during construction	4,628	2,466
Nuclear fuel purchases	(77,704)	(11,039)
Payments for Nuclear Fuel	(77,704)	(11,039)
Proceeds from sale of nuclear fuel	18,845	12,754
Change in money pool receivable - net	60,334	(56,107)
Proceeds from nuclear decommissioning trust fund sales	177,584	418,042
Investment in nuclear decommissioning trust funds	(176,735)	(414,525)
Net cash flow used in investing activities	(94,001)	(86,677)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	556,696	453,981
Retirement of long-term debt	(499,816)	(509,002)
Dividends paid:
Common stock	0	(26,000)
Net cash flow provided by financing activities	56,880	(81,021)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect, Total	45,524	(123,247)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	134,725	119,222
Cash paid / (received) during the period for:
Interest - net of amount capitalized	19,454	29,231
Income taxes	$ 0	$ 39,085