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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, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Pension Plans Defined Benefit [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | $ 36,977 | $ 42,951 | $ 74,637 | $ 88,191
Interest cost on projected benefit obligation | 52,676 | 47,382 | 103,795 | 93,480
Expected return on assets | (103,085) | (106,039) | (206,692) | (211,753)
Amortization of loss | 56,413 | 92,799 | 116,992 | 197,190
Net other postretirement benefit cost | 65,634 | 188,642 | 111,385 | 278,657
Pension Plans Defined Benefit [Member] | Entergy Arkansas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 6,699 | 7,255 | 13,557 | 14,674
Interest cost on projected benefit obligation | 9,761 | 8,752 | 19,078 | 17,092
Expected return on assets | (19,031) | (19,640) | (38,278) | (39,311)
Amortization of loss | 12,848 | 18,250 | 26,274 | 37,552
Net other postretirement benefit cost | 21,773 | 39,003 | 32,127 | 54,393
Pension Plans Defined Benefit [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 9,007 | 9,759 | 18,144 | 19,803
Interest cost on projected benefit obligation | 10,684 | 9,864 | 21,183 | 19,425
Expected return on assets | (21,060) | (22,516) | (42,193) | (45,055)
Amortization of loss | 12,302 | 17,890 | 24,899 | 37,093
Net other postretirement benefit cost | 15,394 | 49,989 | 26,494 | 66,258
Pension Plans Defined Benefit [Member] | Entergy Mississippi [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 2,075 | 2,304 | 4,205 | 4,668
Interest cost on projected benefit obligation | 2,796 | 2,571 | 5,474 | 5,034
Expected return on assets | (5,164) | (5,600) | (10,367) | (11,186)
Amortization of loss | 3,620 | 5,309 | 7,430 | 10,976
Net other postretirement benefit cost | 5,535 | 12,346 | 8,950 | 17,254
Pension Plans Defined Benefit [Member] | Entergy New Orleans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 752 | 774 | 1,504 | 1,569
Interest cost on projected benefit obligation | 1,139 | 1,079 | 2,278 | 2,108
Expected return on assets | (2,515) | (2,641) | (5,030) | (5,263)
Amortization of loss | 1,368 | 2,069 | 2,736 | 4,340
Net other postretirement benefit cost | 744 | 4,866 | 1,488 | 6,339
Pension Plans Defined Benefit [Member] | Entergy Texas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 1,579 | 1,757 | 3,211 | 3,557
Interest cost on projected benefit obligation | 2,272 | 2,052 | 4,447 | 4,002
Expected return on assets | (4,905) | (5,272) | (9,842) | (10,510)
Amortization of loss | 2,439 | 3,415 | 4,994 | 7,126
Net other postretirement benefit cost | 3,851 | 8,578 | 5,276 | 10,801
Pension Plans Defined Benefit [Member] | System Energy [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 2,001 | 2,253 | 4,046 | 4,566
Interest cost on projected benefit obligation | 2,394 | 2,236 | 4,732 | 4,378
Expected return on assets | (4,586) | (4,804) | (9,209) | (9,583)
Amortization of loss | 3,171 | 4,933 | 6,437 | 10,258
Net other postretirement benefit cost | 5,003 | 9,256 | 8,029 | 14,257
Other Postretirement [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 6,184 | 6,645 | 12,368 | 13,290
Interest cost on projected benefit obligation | 6,827 | 5,320 | 13,654 | 10,640
Expected return on assets | (10,855) | (10,805) | (21,710) | (21,610)
Amortization of prior service cost (credit) | (6,388) | (8,267) | (12,776) | (16,534)
Amortization of loss | 1,083 | 713 | 2,166 | 1,426
Net other postretirement benefit cost | (3,149) | (6,394) | (6,298) | (12,788)
Other Postretirement [Member] | Entergy Arkansas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 1,114 | 1,034 | 2,228 | 2,068
Interest cost on projected benefit obligation | 1,263 | 932 | 2,526 | 1,864
Expected return on assets | (4,483) | (4,505) | (8,966) | (9,010)
Amortization of prior service cost (credit) | 471 | (280) | 942 | (560)
Amortization of loss | 218 | 49 | 436 | 98
Net other postretirement benefit cost | (1,417) | (2,770) | (2,834) | (5,540)
Other Postretirement [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 1,408 | 1,544 | 2,816 | 3,088
Interest cost on projected benefit obligation | 1,443 | 1,130 | 2,886 | 2,260
Expected return on assets | 0 | 0 | 0 | 0
Amortization of prior service cost (credit) | (1,158) | (1,230) | (2,316) | (2,460)
Amortization of loss | (186) | (91) | (372) | (182)
Net other postretirement benefit cost | 1,507 | 1,353 | 3,014 | 2,706
Other Postretirement [Member] | Entergy Mississippi [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 339 | 362 | 678 | 724
Interest cost on projected benefit obligation | 350 | 278 | 700 | 556
Expected return on assets | (1,394) | (1,384) | (2,788) | (2,768)
Amortization of prior service cost (credit) | (443) | (444) | (886) | (888)
Amortization of loss | 56 | 19 | 112 | 38
Net other postretirement benefit cost | (1,092) | (1,169) | (2,184) | (2,338)
Other Postretirement [Member] | Entergy New Orleans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 99 | 109 | 198 | 218
Interest cost on projected benefit obligation | 174 | 130 | 348 | 260
Expected return on assets | (1,499) | (1,438) | (2,998) | (2,876)
Amortization of prior service cost (credit) | (229) | (229) | (458) | (458)
Amortization of loss | (225) | (178) | (450) | (356)
Net other postretirement benefit cost | (1,680) | (1,606) | (3,360) | (3,212)
Other Postretirement [Member] | Entergy Texas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 331 | 346 | 662 | 692
Interest cost on projected benefit obligation | 399 | 317 | 798 | 634
Expected return on assets | (2,568) | (2,548) | (5,136) | (5,096)
Amortization of prior service cost (credit) | (1,093) | (936) | (2,186) | (1,872)
Amortization of loss | 162 | 100 | 324 | 200
Net other postretirement benefit cost | (2,769) | (2,721) | (5,538) | (5,442)
Other Postretirement [Member] | System Energy [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Service cost - benefits earned during the period | 310 | 335 | 620 | 670
Interest cost on projected benefit obligation | 279 | 220 | 558 | 440
Expected return on assets | (791) | (789) | (1,582) | (1,578)
Amortization of prior service cost (credit) | (80) | (109) | (160) | (218)
Amortization of loss | 30 | 15 | 60 | 30
Net other postretirement benefit cost | (252) | (328) | (504) | (656)
Non Qualified Pension Plans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 7,200 | 4,600 | 17,400 | 9,200
Non Qualified Pension Plans [Member] | Entergy Arkansas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 71 | 90 | 143 | 180
Non Qualified Pension Plans [Member] | Entergy Louisiana [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 26 | 44 | 53 | 88
Non Qualified Pension Plans [Member] | Entergy Mississippi [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 79 | 96 | 161 | 192
Non Qualified Pension Plans [Member] | Entergy New Orleans [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | 27 | 8 | 56 | 16
Non Qualified Pension Plans [Member] | Entergy Texas [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Net other postretirement benefit cost | $ 88 | $ 115 | $ 303 | $ 230

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