| Document and Entity Information Document | Oct. 27, 2023 |
| Document Type | 8-K |
| Document Period End Date | Oct. 27, 2023 |
| Amendment Flag | false |
| Entity File Number | 1-11299 |
| Entity Registrant Name | ENTERGY CORPORATION |
| Entity Tax Identification Number | 72-1229752 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 639 Loyola Avenue |
| Entity Address, City or Town | New Orleans |
| Entity Address, State or Province | LA |
| Entity Address, Country | US |
| Entity Address, Postal Zip Code | 70113 |
| City Area Code | 504 |
| Local Phone Number | 576-4000 |
| Entity Central Index Key | 0000065984 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | false |
| NEW YORK STOCK EXCHANGE, INC. [Member] | |
| Title of 12(b) Security | Common Stock, $0.01 Par Value |
| Trading Symbol | ETR |
| Security Exchange Name | NYSE |
| CHICAGO STOCK EXCHANGE, INC [Member] | |
| Title of 12(b) Security | Common Stock, $0.01 Par Value |
| Trading Symbol | ETR |
| Security Exchange Name | CHX |
| System Energy [Member] | |
| Entity File Number | 1-09067 |
| Entity Registrant Name | SYSTEM ENERGY RESOURCES, INC. |
| Entity Tax Identification Number | 72-0752777 |
| Entity Incorporation, State or Country Code | AR |
| Entity Address, Address Line One | 1340 Echelon Parkway |
| Entity Address, City or Town | Jackson |
| Entity Address, State or Province | MS |
| Entity Address, Country | US |
| Entity Address, Postal Zip Code | 39213 |
| City Area Code | 601 |
| Local Phone Number | 368-5000 |
| Entity Central Index Key | 0000202584 |
| Entity Emerging Growth Company | false |
| Entergy Arkansas [Member] | |
| Entity File Number | 1-10764 |
| Entity Registrant Name | ENTERGY ARKANSAS, LLC |
| Entity Tax Identification Number | 83-1918668 |
| Entity Incorporation, State or Country Code | TX |
| Entity Address, Address Line One | 425 West Capitol Avenue |
| Entity Address, City or Town | Little Rock |
| Entity Address, State or Province | AR |
| Entity Address, Country | US |
| Entity Address, Postal Zip Code | 72201 |
| City Area Code | 501 |
| Local Phone Number | 377-4000 |
| Entity Central Index Key | 0000007323 |
| Entity Emerging Growth Company | false |
| Entergy Arkansas [Member] | NEW YORK STOCK EXCHANGE, INC. [Member] | |
| Title of 12(b) Security | Mortgage Bonds, 4.875% Series due September 2066 |
| Trading Symbol | EAI |
| Security Exchange Name | NYSE |
