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Retirement And Other Postretirement Benefits (Components Of Qualified Net Pension Cost) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Pension Plans Defined Benefit [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | $ 25,366 | $ 36,977 | $ 51,044 | $ 74,637
Interest cost on projected benefit obligation | 74,033 | 52,676 | 149,734 | 103,795
Expected return on assets | (95,752) | (103,085) | (193,885) | (206,692)
Amortization of loss | 21,307 | 56,413 | 43,654 | 116,992
Net other postretirement benefit cost | 32,200 | 65,634 | 196,221 | 111,385
Pension Plans Defined Benefit [Member] | Entergy Arkansas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 4,661 | 6,699 | 9,410 | 13,557
Interest cost on projected benefit obligation | 13,917 | 9,761 | 28,197 | 19,078
Expected return on assets | (17,878) | (19,031) | (35,954) | (38,278)
Amortization of loss | 5,763 | 12,848 | 12,732 | 26,274
Net other postretirement benefit cost | 8,247 | 21,773 | 38,343 | 32,127
Pension Plans Defined Benefit [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 6,199 | 9,007 | 12,479 | 18,144
Interest cost on projected benefit obligation | 14,944 | 10,684 | 30,323 | 21,183
Expected return on assets | (18,766) | (21,060) | (37,999) | (42,193)
Amortization of loss | 4,992 | 12,302 | 9,956 | 24,899
Net other postretirement benefit cost | 9,601 | 15,394 | 52,989 | 26,494
Pension Plans Defined Benefit [Member] | Entergy Mississippi [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 1,456 | 2,075 | 2,938 | 4,205
Interest cost on projected benefit obligation | 3,824 | 2,796 | 7,754 | 5,474
Expected return on assets | (4,635) | (5,164) | (9,519) | (10,367)
Amortization of loss | 1,627 | 3,620 | 3,392 | 7,430
Net other postretirement benefit cost | 2,360 | 5,535 | 16,308 | 8,950
Pension Plans Defined Benefit [Member] | Entergy New Orleans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 487 | 752 | 978 | 1,504
Interest cost on projected benefit obligation | 1,669 | 1,139 | 3,384 | 2,278
Expected return on assets | (2,310) | (2,515) | (4,577) | (5,030)
Amortization of loss | 484 | 1,368 | 997 | 2,736
Net other postretirement benefit cost | 337 | 744 | 2,482 | 1,488
Pension Plans Defined Benefit [Member] | Entergy Texas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 1,090 | 1,579 | 2,197 | 3,211
Interest cost on projected benefit obligation | 3,162 | 2,272 | 6,404 | 4,447
Expected return on assets | (4,023) | (4,905) | (8,175) | (9,842)
Amortization of loss | 1,059 | 2,439 | 2,049 | 4,994
Net other postretirement benefit cost | 1,880 | 3,851 | 12,745 | 5,276
Pension Plans Defined Benefit [Member] | System Energy [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 1,445 | 2,001 | 2,912 | 4,046
Interest cost on projected benefit obligation | 3,435 | 2,394 | 6,963 | 4,732
Expected return on assets | (4,501) | (4,586) | (9,039) | (9,209)
Amortization of loss | 1,274 | 3,171 | 2,735 | 6,437
Net other postretirement benefit cost | 2,143 | 5,003 | 8,861 | 8,029
Other Postretirement [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 3,664 | 6,184 | 7,328 | 12,368
Interest cost on projected benefit obligation | 10,568 | 6,827 | 21,136 | 13,654
Expected return on assets | (9,183) | (10,855) | (18,366) | (21,710)
Amortization of prior service cost (credit) | (5,640) | (6,388) | (11,280) | (12,776)
Amortization of loss | (2,862) | 1,083 | (5,724) | 2,166
Net other postretirement benefit cost | (3,453) | (3,149) | (6,906) | (6,298)
Other Postretirement [Member] | Entergy Arkansas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 741 | 1,114 | 1,482 | 2,228
Interest cost on projected benefit obligation | 2,001 | 1,263 | 4,002 | 2,526
Expected return on assets | (3,778) | (4,483) | (7,556) | (8,966)
Amortization of prior service cost (credit) | 524 | 471 | 1,048 | 942
Amortization of loss | 43 | 218 | 86 | 436
Net other postretirement benefit cost | (469) | (1,417) | (938) | (2,834)
Other Postretirement [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 845 | 1,408 | 1,690 | 2,816
Interest cost on projected benefit obligation | 2,233 | 1,443 | 4,466 | 2,886
Expected return on assets | 0 | 0 | 0 | 0
Amortization of prior service cost (credit) | (951) | (1,158) | (1,902) | (2,316)
Amortization of loss | (1,764) | (186) | (3,528) | (372)
Net other postretirement benefit cost | 363 | 1,507 | 726 | 3,014
Other Postretirement [Member] | Entergy Mississippi [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 220 | 339 | 440 | 678
Interest cost on projected benefit obligation | 543 | 350 | 1,086 | 700
Expected return on assets | (1,179) | (1,394) | (2,358) | (2,788)
Amortization of prior service cost (credit) | (239) | (443) | (478) | (886)
Amortization of loss | 21 | 56 | 42 | 112
Net other postretirement benefit cost | (634) | (1,092) | (1,268) | (2,184)
Other Postretirement [Member] | Entergy New Orleans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 59 | 99 | 118 | 198
Interest cost on projected benefit obligation | 290 | 174 | 580 | 348
Expected return on assets | (1,316) | (1,499) | (2,632) | (2,998)
Amortization of prior service cost (credit) | (229) | (229) | (458) | (458)
Amortization of loss | 117 | (225) | 234 | (450)
Net other postretirement benefit cost | (1,079) | (1,680) | (2,158) | (3,360)
Other Postretirement [Member] | Entergy Texas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 202 | 331 | 404 | 662
Interest cost on projected benefit obligation | 649 | 399 | 1,298 | 798
Expected return on assets | (2,194) | (2,568) | (4,388) | (5,136)
Amortization of prior service cost (credit) | (1,093) | (1,093) | (2,186) | (2,186)
Amortization of loss | 229 | 162 | 458 | 324
Net other postretirement benefit cost | (2,207) | (2,769) | (4,414) | (5,538)
Other Postretirement [Member] | System Energy [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 189 | 310 | 378 | 620
Interest cost on projected benefit obligation | 432 | 279 | 864 | 558
Expected return on assets | (634) | (791) | (1,268) | (1,582)
Amortization of prior service cost (credit) | (73) | (80) | (146) | (160)
Amortization of loss | 0 | 30 | 0 | 60
Net other postretirement benefit cost | (86) | (252) | (172) | (504)
Non Qualified Pension Plans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 8,800 | 7,200 | 18,000 | 17,400
Non Qualified Pension Plans [Member] | Entergy Arkansas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 63 | 71 | 513 | 143
Non Qualified Pension Plans [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 25 | 26 | 52 | 53
Non Qualified Pension Plans [Member] | Entergy Mississippi [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 87 | 79 | 639 | 161
Non Qualified Pension Plans [Member] | Entergy New Orleans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 33 | 27 | 66 | 56
Non Qualified Pension Plans [Member] | Entergy Texas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | $ 63 | $ 88 | $ 126 | $ 303

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