Risk Management and Fair Values Narrative (Details) $ in Thousands	Dec. 31, 2025 USD ($) GWh MMBTU	Dec. 31, 2024 USD ($)
Cash	$ 45,895	$ 48,424
Financial Transmission Rights (FTRs) [Member]
Total volume outstanding | GWh	44,896
Letters of Credit Outstanding, Amount	$ 2,000	2,000
Financial Transmission Rights (FTRs) [Member] | Corporate Segment and Other Operating Segment [Member]
Cash	0
Letters of Credit Outstanding, Amount	$ 0
Natural gas swaps
Total volume outstanding | MMBTU	12,434,000
Derivative, Remaining Maturity	10 months
Interest Rate Swap
Derivative, Notional Amount	$ 1,100,000
Entergy Arkansas [Member]
Cash	$ 7,048	1,306
Entergy Arkansas [Member] | Financial Transmission Rights (FTRs) [Member]
Total volume outstanding | GWh	9,504
Cash	$ 0
Letters of Credit Outstanding, Amount	100	500
Entergy Louisiana [Member]
Cash	$ 237	327
Entergy Louisiana [Member] | Financial Transmission Rights (FTRs) [Member]
Total volume outstanding | GWh	23,971
Cash	$ 0
Letters of Credit Outstanding, Amount	$ 800	100
Entergy Louisiana [Member] | Natural gas swaps
Total volume outstanding | MMBTU	0
Entergy Mississippi [Member]
Cash	$ 27	184
Entergy Mississippi [Member] | Financial Transmission Rights (FTRs) [Member]
Total volume outstanding | GWh	5,070
Cash	$ 0
Letters of Credit Outstanding, Amount	$ 800	800
Entergy Mississippi [Member] | Natural gas swaps
Total volume outstanding | MMBTU	12,434,000
Derivative, Remaining Maturity	10 months
Entergy New Orleans [Member]
Cash	$ 26	374
Entergy New Orleans [Member] | Financial Transmission Rights (FTRs) [Member]
Total volume outstanding | GWh	1,637
Cash	$ 0
Letters of Credit Outstanding, Amount		100
Entergy Texas [Member]
Cash	$ 200	291
Entergy Texas [Member] | Financial Transmission Rights (FTRs) [Member]
Total volume outstanding | GWh	4,714
Cash	$ 0
Letters of Credit Outstanding, Amount	100	$ 300
Entergy Texas [Member] | Interest Rate Swap
Derivative, Notional Amount	$ 1,100,000