Risk Management and Fair Values Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) GWh MMBTU	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Risk Management and Fair Values [Abstract]
Included in earnings			$ (0.3)
Maturity of cash flow hedges, Tax		$ 8.0	$ 31.0
Debt Securities, Available-for-sale, Allowance for Credit Loss		0.4
Entergy Wholesale Commodities [Member]
Risk Management and Fair Values [Abstract]
Cash collateral posted	$ 8.0	8.0
Utility [Member]
Risk Management and Fair Values [Abstract]
Letters of Credit Outstanding, Amount	$ 3.0
Gas Hedge Contracts [Member]
Risk Management and Fair Values [Abstract]
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	22,811,760
Financial Transmission Rights (FTRs) [Member]
Risk Management and Fair Values [Abstract]
Total volume of FTRs outstanding (MWh) | GWh	60,163
Entergy Arkansas [Member] | Financial Transmission Rights (FTRs) [Member]
Risk Management and Fair Values [Abstract]
Total volume of FTRs outstanding (MWh) | GWh	13,532
Entergy Louisiana [Member] | Gas Hedge Contracts [Member]
Risk Management and Fair Values [Abstract]
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	9,120,000
Maximum Length of Time Hedged in Cash Flow Hedge	1 year 3 months
Entergy Louisiana [Member] | Financial Transmission Rights (FTRs) [Member]
Risk Management and Fair Values [Abstract]
Total volume of FTRs outstanding (MWh) | GWh	27,264
Entergy Mississippi [Member] | Gas Hedge Contracts [Member]
Risk Management and Fair Values [Abstract]
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	13,088,700
Maximum Length of Time Hedged in Cash Flow Hedge	10 months
Entergy Mississippi [Member] | Financial Transmission Rights (FTRs) [Member]
Risk Management and Fair Values [Abstract]
Letters of Credit Outstanding, Amount	$ 0.2	0.2
Total volume of FTRs outstanding (MWh) | GWh	6,492
Entergy New Orleans [Member] | Gas Hedge Contracts [Member]
Risk Management and Fair Values [Abstract]
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	603,060
Maximum Length of Time Hedged in Cash Flow Hedge	3 months
Entergy New Orleans [Member] | Financial Transmission Rights (FTRs) [Member]
Risk Management and Fair Values [Abstract]
Letters of Credit Outstanding, Amount	$ 0.2
Total volume of FTRs outstanding (MWh) | GWh	2,596
Entergy Texas [Member] | Financial Transmission Rights (FTRs) [Member]
Risk Management and Fair Values [Abstract]
Letters of Credit Outstanding, Amount	$ 2.4	$ 0.1
Total volume of FTRs outstanding (MWh) | GWh	10,202