Risk Management and Fair Values (Narrative) (Details)	9 Months Ended
	Sep. 30, 2022 USD ($) GWh MMBTU	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Maturity of cash flow hedges, Tax		$ 8,000,000
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	22,880,037
Total volume of fixed transmission rights outstanding | GWh	96,835
Debt Securities, Available-for-sale, Allowance for Credit Loss			$ 400,000
Letters Of Credit	$ 3,000,000
Entergy Arkansas [Member]
Total volume of fixed transmission rights outstanding | GWh	22,176
Entergy Louisiana [Member]
Letters of Credit Outstanding, Amount	$ 900,000
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	10,960,000
Total volume of fixed transmission rights outstanding | GWh	43,396
Entergy Mississippi [Member]
Letters of Credit Outstanding, Amount	$ 800,000		200,000
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	10,701,000
Total volume of fixed transmission rights outstanding | GWh	10,515
Entergy New Orleans [Member]
Letters of Credit Outstanding, Amount	$ 100,000
Total volume of natural gas swaps outstanding (MMBtu) | MMBTU	1,219,037
Total volume of fixed transmission rights outstanding | GWh	4,153
Entergy Texas [Member]
Letters of Credit Outstanding, Amount	$ 800,000		100,000
Total volume of fixed transmission rights outstanding | GWh	16,473
Gas Hedge Contracts [Member] | Entergy Louisiana [Member]
Maximum Length of Time Hedged in Cash Flow Hedge	1 year 6 months
Gas Hedge Contracts [Member] | Entergy Mississippi [Member]
Maximum Length of Time Hedged in Cash Flow Hedge	6 months
Gas Hedge Contracts [Member] | Entergy New Orleans [Member]
Maximum Length of Time Hedged in Cash Flow Hedge	6 months
Electricity Swaps And Options [Member] | Cash Flow Hedging [Member] | Competitive Businesses Operating Revenues [Member]
Maturity of cash flow hedges, before taxes		$ 40,000,000
Entergy Wholesale Commodities [Member]
Cash collateral posted	$ 8,000,000		$ 8,000,000
Utility [Member]
Letters Of Credit	$ 3,000,000