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Retirement And Other Postretirement Benefits (Expected Employer Contributions) (Details) - USD ($) $ in Thousands | 6 Months Ended
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Dec. 31, 2022 | Jun. 30, 2022
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | $ 200,000
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 101,000
Entergy Louisiana [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 22,917
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 13,410
Entergy Louisiana [Member] | Subsequent Event [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | $ 9,507 |
Entergy Mississippi [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 12,852
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 5,442
Entergy Mississippi [Member] | Subsequent Event [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 7,410 |
Entergy New Orleans [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 922
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 922
Entergy New Orleans [Member] | Subsequent Event [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 0 |
Entergy Texas [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 1,924
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 1,486
Entergy Texas [Member] | Subsequent Event [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 438 |
System Energy [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 12,760
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 6,187
System Energy [Member] | Subsequent Event [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | 6,573 |
Entergy Arkansas [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year |  | 40,840
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | $ 21,532
Entergy Arkansas [Member] | Subsequent Event [Member] |  |
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward] |  |
Defined Benefit Plan, Plan Assets, Contributions by Employer | $ 19,308 |

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of contribution received by defined benefit plan from employer which increases plan assets. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e2709-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=123450688&loc=d3e4587-114921 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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