Revolving Credit Facilities, Lines Of Credit And Short-Term Borrowings (Notes Payable By Variable Interest Entities) (Details) $ in Millions	Dec. 31, 2022 USD ($)
Variable Interest Entity Notes Payable, Two Point Five One Percent Series V, Due June Twenty Twenty Seven \| Entergy Louisiana River Bend VIE [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.51%
Amount	$ 70
Variable Interest Entity Notes Payable, 3.22 % Series I, Due December 2023 [Member] \| Entergy Louisiana Waterford VIE [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.22%
Amount	$ 20
Variance Interest Entity notes Payable, 1.84% Series N, Due July 2026 \| Entergy Arkansas VIE [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.84%
Amount	$ 90
Variable Interest Entity Notes Payable, 3.17% Series M, Due December 2023 [Member] \| Entergy Arkansas VIE [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.17%
Amount	$ 40
Variable Interest Entity Notes Payable, 2.05% Series K Due September Twenty Twenty Seven \| System Energy VIE [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.05%
Amount	$ 90

Contractual interest rate for funds borrowed, under the debt agreement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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