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Decommissioning Trust Funds (Fair Value Of Debt Securities By Contractual Maturities) (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
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Fair value of debt securities by contractual maturities |  |
1 year - 5 years | $ 556,000 | $ 473,000
5 years - 10 years | 501,000 | 655,000
10 years - 15 years | 120,000 | 389,000
15 years - 20 years | 143,000 | 130,000
20 years+ | 307,000 | 530,000
Total | 1,692,000 | 2,177,000
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 65,000 | 0
Decommissioning Fund Investments | 4,090,109 | 5,514,016
Entergy Arkansas [Member] |  |
Fair value of debt securities by contractual maturities |  |
1 year - 5 years | 157,900 | 91,700
5 years - 10 years | 201,400 | 217,400
10 years - 15 years | 43,000 | 146,000
15 years - 20 years | 34,300 | 35,700
20 years+ | 18,100 | 35,500
Total | 484,800 | 526,300
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 30,100 | 0
Decommissioning Fund Investments | 1,194,815 | 1,438,416
Entergy Louisiana [Member] |  |
Fair value of debt securities by contractual maturities |  |
1 year - 5 years | 198,900 | 157,800
5 years - 10 years | 156,600 | 173,000
10 years - 15 years | 70,300 | 123,000
15 years - 20 years | 78,500 | 80,200
20 years+ | 203,800 | 260,200
Total | 733,300 | 794,200
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 25,200 | 0
Decommissioning Fund Investments | 1,756,483 | 2,114,523
System Energy [Member] |  |
Fair value of debt securities by contractual maturities |  |
1 year - 5 years | 199,200 | 156,800
5 years - 10 years | 142,500 | 161,800
10 years - 15 years | 7,200 | 58,600
15 years - 20 years | 29,800 | 1,900
20 years+ | 85,700 | 145,400
Total | 474,300 | 524,500
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Fair Value | 9,900 | 0
Decommissioning Fund Investments | $ 1,138,811 | $ 1,385,254

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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27198-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123599081&loc=SL120269850-112803 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27161-111563 + Details
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