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Retirement And Other Postretirement Benefits (Tables) | 3 Months Ended
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Mar. 31, 2018 | Mar. 31, 2017
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification out of Accumulated Other Comprehensive Income, amortization |
Entergy and Entergy Louisiana reclassified the following costs out of accumulated other comprehensive income (loss) (before taxes and including amounts capitalized) for the first quarters of 2018 and 2017:
2018 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($99 | ) |  |  | $5,595 |  |  |  | ($70 | ) |  |  | $5,426 |
Amortization of loss |  | (21,957 | ) |  | (1,932 | ) |  | (1,063 | ) |  | (24,952 | )
Settlement loss |  | — |  |  | — |  |  | (1,616 | ) |  | (1,616 | )
|  |  | ($22,056 | ) |  |  | $3,663 |  |  |  | ($2,749 | ) |  |  | ($21,142 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,934 |  |  |  | $— |  |  |  | $1,934 |
Amortization of loss |  | (867 | ) |  | (388 | ) |  | (2 | ) |  | (1,257 | )
|  |  | ($867 | ) |  |  | $1,546 |  |  |  | ($2 | ) |  |  | $677 |
2017 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($65 | ) |  |  | $6,717 |  |  |  | ($90 | ) |  |  | $6,562 |
Amortization of loss |  | (18,450 | ) |  | (2,202 | ) |  | (919 | ) |  | (21,571 | )
|  |  | ($18,515 | ) |  |  | $4,515 |  |  |  | ($1,009 | ) |  |  | ($15,009 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,934 |  |  |  | $— |  |  |  | $1,934 |
Amortization of loss |  | (865 | ) |  | (465 | ) |  | (2 | ) |  | (1,332 | )
|  |  | ($865 | ) |  |  | $1,469 |  |  |  | ($2 | ) |  |  | $602 |
Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
Entergy’s qualified pension cost, including amounts capitalized, for the first quarters of 2018 and 2017, included the following components:
| 2018 |  | 2017
| (In Thousands)
Service cost - benefits earned during the period |  | $38,752 |  |  |  | $33,410 |
Interest cost on projected benefit obligation | 66,854 |  |  | 65,206 |
Expected return on assets | (110,535 | ) |  | (102,056 | )
Amortization of prior service cost | 99 |  |  | 65 |
Amortization of loss | 68,526 |  |  | 56,930 |
Net pension costs |  | $63,696 |  |  |  | $53,555 |
Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
Entergy’s other postretirement benefit cost, including amounts capitalized, for the first quarters of 2018 and 2017, included the following components:
| 2018 |  | 2017
| (In Thousands)
Service cost - benefits earned during the period |  | $6,782 |  |  |  | $6,729 |
Interest cost on accumulated postretirement benefit obligation (APBO) | 12,681 |  |  | 13,960 |
Expected return on assets | (10,373 | ) |  | (9,408 | )
Amortization of prior service credit | (9,251 | ) |  | (10,356 | )
Amortization of loss | 3,432 |  |  | 5,476 |
Net other postretirement benefit cost |  | $3,271 |  |  |  | $6,401 |
Entergy Arkansas [Member] | Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |  |
The Registrant Subsidiaries’ qualified pension cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $6,189 |  |  |  | $8,446 |  |  |  | $1,822 |  |  |  | $673 |  |  |  | $1,589 |  |  |  | $1,776 |
Interest cost on projects benefit obligation |  | 13,004 |  |  | 14,940 |  |  | 3,769 |  |  | 1,813 |  |  | 3,348 |  |  | 3,227 |
Expected return on assets |  | (21,851 | ) |  | (24,809 | ) |  | (6,502 | ) |  | (2,993 | ) |  | (6,523 | ) |  | (4,991 | )
Amortization of loss |  | 13,412 |  |  | 14,450 |  |  | 3,610 |  |  | 1,954 |  |  | 2,626 |  |  | 3,715 |
Net pension cost |  |  | $10,754 |  |  |  | $13,027 |  |  |  | $2,699 |  |  |  | $1,447 |  |  |  | $1,040 |  |  |  | $3,727 |
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $5,090 |  |  |  | $6,925 |  |  |  | $1,472 |  |  |  | $625 |  |  |  | $1,364 |  |  |  | $1,536 |
Interest cost on projected benefit obligation |  | 12,944 |  |  | 14,809 |  |  | 3,732 |  |  | 1,791 |  |  | 3,392 |  |  | 3,091 |
Expected return on assets |  | (20,427 | ) |  | (23,017 | ) |  | (6,131 | ) |  | (2,800 | ) |  | (6,180 | ) |  | (4,663 | )
Amortization of loss |  | 11,640 |  |  | 12,354 |  |  | 3,053 |  |  | 1,658 |  |  | 2,310 |  |  | 2,964 |
Net pension cost |  |  | $9,247 |  |  |  | $11,071 |  |  |  | $2,126 |  |  |  | $1,274 |  |  |  | $886 |  |  |  | $2,928 |
Expected Employer Contributions | Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2018:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2018 pension contributions |  | $64,062 |  |  |  | $71,917 |  |  |  | $14,933 |  |  |  | $7,250 |  |  |  | $10,883 |  |  |  | $13,786 |
Pension contributions made through March 2018 |  | $17,373 |  |  |  | $19,510 |  |  |  | $4,194 |  |  |  | $2,061 |  |  |  | $3,873 |  |  |  | $3,715 |
Remaining estimated pension contributions to be made in 2018 |  | $46,689 |  |  |  | $52,407 |  |  |  | $10,739 |  |  |  | $5,189 |  |  |  | $7,010 |  |  |  | $10,071 |
Entergy Arkansas [Member] | Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ other postretirement benefit cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $793 |  |  |  | $1,556 |  |  |  | $321 |  |  |  | $129 |  |  |  | $330 |  |  |  | $306 |
Interest cost on APBO |  | 1,997 |  |  | 2,789 |  |  | 683 |  |  | 417 |  |  | 939 |  |  | 500 |
Expected return on assets |  | (4,342 | ) |  | — |  |  | (1,303 | ) |  | (1,313 | ) |  | (2,446 | ) |  | (783 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 289 |  |  | 388 |  |  | 377 |  |  | 34 |  |  | 206 |  |  | 233 |
Net other postretirement benefit cost |  |  | ($2,541 | ) |  |  | $2,799 |  |  |  | ($378 | ) |  |  | ($919 | ) |  |  | ($1,550 | ) |  |  | ($122 | )
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $863 |  |  |  | $1,593 |  |  |  | $290 |  |  |  | $142 |  |  |  | $372 |  |  |  | $320 |
Interest cost on APBO |  | 2,255 |  |  | 3,025 |  |  | 690 |  |  | 469 |  |  | 1,124 |  |  | 559 |
Expected return on assets |  | (3,959 | ) |  | — |  |  | (1,200 | ) |  | (1,159 | ) |  | (2,180 | ) |  | (717 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 1,115 |  |  | 465 |  |  | 419 |  |  | 105 |  |  | 826 |  |  | 390 |
Net other postretirement benefit cost |  |  | ($1,004 | ) |  |  | $3,149 |  |  |  | ($257 | ) |  |  | ($629 | ) |  |  | ($437 | ) |  |  | $174 |
Entergy Arkansas [Member] | Non Qualified Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries recognized the following pension cost for their employees for their non-qualified pension plans for the first quarters of 2018 and 2017:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
2018 |  | $132 |  |  |  | $50 |  |  |  | $80 |  |  |  | $21 |  |  |  | $137 |
2017 |  | $105 |  |  |  | $48 |  |  |  | $64 |  |  |  | $18 |  |  |  | $127 |
Entergy Louisiana [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Reclassification out of Accumulated Other Comprehensive Income, amortization |
Entergy and Entergy Louisiana reclassified the following costs out of accumulated other comprehensive income (loss) (before taxes and including amounts capitalized) for the first quarters of 2018 and 2017:
2018 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($99 | ) |  |  | $5,595 |  |  |  | ($70 | ) |  |  | $5,426 |
Amortization of loss |  | (21,957 | ) |  | (1,932 | ) |  | (1,063 | ) |  | (24,952 | )
Settlement loss |  | — |  |  | — |  |  | (1,616 | ) |  | (1,616 | )
|  |  | ($22,056 | ) |  |  | $3,663 |  |  |  | ($2,749 | ) |  |  | ($21,142 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,934 |  |  |  | $— |  |  |  | $1,934 |
Amortization of loss |  | (867 | ) |  | (388 | ) |  | (2 | ) |  | (1,257 | )
|  |  | ($867 | ) |  |  | $1,546 |  |  |  | ($2 | ) |  |  | $677 |
2017 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($65 | ) |  |  | $6,717 |  |  |  | ($90 | ) |  |  | $6,562 |
Amortization of loss |  | (18,450 | ) |  | (2,202 | ) |  | (919 | ) |  | (21,571 | )
|  |  | ($18,515 | ) |  |  | $4,515 |  |  |  | ($1,009 | ) |  |  | ($15,009 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,934 |  |  |  | $— |  |  |  | $1,934 |
Amortization of loss |  | (865 | ) |  | (465 | ) |  | (2 | ) |  | (1,332 | )
|  |  | ($865 | ) |  |  | $1,469 |  |  |  | ($2 | ) |  |  | $602 |
Entergy Louisiana [Member] | Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ qualified pension cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $6,189 |  |  |  | $8,446 |  |  |  | $1,822 |  |  |  | $673 |  |  |  | $1,589 |  |  |  | $1,776 |
Interest cost on projects benefit obligation |  | 13,004 |  |  | 14,940 |  |  | 3,769 |  |  | 1,813 |  |  | 3,348 |  |  | 3,227 |
Expected return on assets |  | (21,851 | ) |  | (24,809 | ) |  | (6,502 | ) |  | (2,993 | ) |  | (6,523 | ) |  | (4,991 | )
Amortization of loss |  | 13,412 |  |  | 14,450 |  |  | 3,610 |  |  | 1,954 |  |  | 2,626 |  |  | 3,715 |
Net pension cost |  |  | $10,754 |  |  |  | $13,027 |  |  |  | $2,699 |  |  |  | $1,447 |  |  |  | $1,040 |  |  |  | $3,727 |
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $5,090 |  |  |  | $6,925 |  |  |  | $1,472 |  |  |  | $625 |  |  |  | $1,364 |  |  |  | $1,536 |
Interest cost on projected benefit obligation |  | 12,944 |  |  | 14,809 |  |  | 3,732 |  |  | 1,791 |  |  | 3,392 |  |  | 3,091 |
Expected return on assets |  | (20,427 | ) |  | (23,017 | ) |  | (6,131 | ) |  | (2,800 | ) |  | (6,180 | ) |  | (4,663 | )
Amortization of loss |  | 11,640 |  |  | 12,354 |  |  | 3,053 |  |  | 1,658 |  |  | 2,310 |  |  | 2,964 |
Net pension cost |  |  | $9,247 |  |  |  | $11,071 |  |  |  | $2,126 |  |  |  | $1,274 |  |  |  | $886 |  |  |  | $2,928 |
Expected Employer Contributions | Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2018:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2018 pension contributions |  | $64,062 |  |  |  | $71,917 |  |  |  | $14,933 |  |  |  | $7,250 |  |  |  | $10,883 |  |  |  | $13,786 |
Pension contributions made through March 2018 |  | $17,373 |  |  |  | $19,510 |  |  |  | $4,194 |  |  |  | $2,061 |  |  |  | $3,873 |  |  |  | $3,715 |
Remaining estimated pension contributions to be made in 2018 |  | $46,689 |  |  |  | $52,407 |  |  |  | $10,739 |  |  |  | $5,189 |  |  |  | $7,010 |  |  |  | $10,071 |
Entergy Louisiana [Member] | Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ other postretirement benefit cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $793 |  |  |  | $1,556 |  |  |  | $321 |  |  |  | $129 |  |  |  | $330 |  |  |  | $306 |
Interest cost on APBO |  | 1,997 |  |  | 2,789 |  |  | 683 |  |  | 417 |  |  | 939 |  |  | 500 |
Expected return on assets |  | (4,342 | ) |  | — |  |  | (1,303 | ) |  | (1,313 | ) |  | (2,446 | ) |  | (783 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 289 |  |  | 388 |  |  | 377 |  |  | 34 |  |  | 206 |  |  | 233 |
Net other postretirement benefit cost |  |  | ($2,541 | ) |  |  | $2,799 |  |  |  | ($378 | ) |  |  | ($919 | ) |  |  | ($1,550 | ) |  |  | ($122 | )
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $863 |  |  |  | $1,593 |  |  |  | $290 |  |  |  | $142 |  |  |  | $372 |  |  |  | $320 |
Interest cost on APBO |  | 2,255 |  |  | 3,025 |  |  | 690 |  |  | 469 |  |  | 1,124 |  |  | 559 |
Expected return on assets |  | (3,959 | ) |  | — |  |  | (1,200 | ) |  | (1,159 | ) |  | (2,180 | ) |  | (717 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 1,115 |  |  | 465 |  |  | 419 |  |  | 105 |  |  | 826 |  |  | 390 |
Net other postretirement benefit cost |  |  | ($1,004 | ) |  |  | $3,149 |  |  |  | ($257 | ) |  |  | ($629 | ) |  |  | ($437 | ) |  |  | $174 |
Entergy Louisiana [Member] | Non Qualified Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries recognized the following pension cost for their employees for their non-qualified pension plans for the first quarters of 2018 and 2017:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
2018 |  | $132 |  |  |  | $50 |  |  |  | $80 |  |  |  | $21 |  |  |  | $137 |
2017 |  | $105 |  |  |  | $48 |  |  |  | $64 |  |  |  | $18 |  |  |  | $127 |
Entergy Mississippi [Member] | Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ qualified pension cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $6,189 |  |  |  | $8,446 |  |  |  | $1,822 |  |  |  | $673 |  |  |  | $1,589 |  |  |  | $1,776 |
Interest cost on projects benefit obligation |  | 13,004 |  |  | 14,940 |  |  | 3,769 |  |  | 1,813 |  |  | 3,348 |  |  | 3,227 |
Expected return on assets |  | (21,851 | ) |  | (24,809 | ) |  | (6,502 | ) |  | (2,993 | ) |  | (6,523 | ) |  | (4,991 | )
Amortization of loss |  | 13,412 |  |  | 14,450 |  |  | 3,610 |  |  | 1,954 |  |  | 2,626 |  |  | 3,715 |
Net pension cost |  |  | $10,754 |  |  |  | $13,027 |  |  |  | $2,699 |  |  |  | $1,447 |  |  |  | $1,040 |  |  |  | $3,727 |
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $5,090 |  |  |  | $6,925 |  |  |  | $1,472 |  |  |  | $625 |  |  |  | $1,364 |  |  |  | $1,536 |
Interest cost on projected benefit obligation |  | 12,944 |  |  | 14,809 |  |  | 3,732 |  |  | 1,791 |  |  | 3,392 |  |  | 3,091 |
Expected return on assets |  | (20,427 | ) |  | (23,017 | ) |  | (6,131 | ) |  | (2,800 | ) |  | (6,180 | ) |  | (4,663 | )
Amortization of loss |  | 11,640 |  |  | 12,354 |  |  | 3,053 |  |  | 1,658 |  |  | 2,310 |  |  | 2,964 |
Net pension cost |  |  | $9,247 |  |  |  | $11,071 |  |  |  | $2,126 |  |  |  | $1,274 |  |  |  | $886 |  |  |  | $2,928 |
Expected Employer Contributions | Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2018:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2018 pension contributions |  | $64,062 |  |  |  | $71,917 |  |  |  | $14,933 |  |  |  | $7,250 |  |  |  | $10,883 |  |  |  | $13,786 |
Pension contributions made through March 2018 |  | $17,373 |  |  |  | $19,510 |  |  |  | $4,194 |  |  |  | $2,061 |  |  |  | $3,873 |  |  |  | $3,715 |
Remaining estimated pension contributions to be made in 2018 |  | $46,689 |  |  |  | $52,407 |  |  |  | $10,739 |  |  |  | $5,189 |  |  |  | $7,010 |  |  |  | $10,071 |
Entergy Mississippi [Member] | Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ other postretirement benefit cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $793 |  |  |  | $1,556 |  |  |  | $321 |  |  |  | $129 |  |  |  | $330 |  |  |  | $306 |
Interest cost on APBO |  | 1,997 |  |  | 2,789 |  |  | 683 |  |  | 417 |  |  | 939 |  |  | 500 |
Expected return on assets |  | (4,342 | ) |  | — |  |  | (1,303 | ) |  | (1,313 | ) |  | (2,446 | ) |  | (783 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 289 |  |  | 388 |  |  | 377 |  |  | 34 |  |  | 206 |  |  | 233 |
Net other postretirement benefit cost |  |  | ($2,541 | ) |  |  | $2,799 |  |  |  | ($378 | ) |  |  | ($919 | ) |  |  | ($1,550 | ) |  |  | ($122 | )
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $863 |  |  |  | $1,593 |  |  |  | $290 |  |  |  | $142 |  |  |  | $372 |  |  |  | $320 |
Interest cost on APBO |  | 2,255 |  |  | 3,025 |  |  | 690 |  |  | 469 |  |  | 1,124 |  |  | 559 |
Expected return on assets |  | (3,959 | ) |  | — |  |  | (1,200 | ) |  | (1,159 | ) |  | (2,180 | ) |  | (717 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 1,115 |  |  | 465 |  |  | 419 |  |  | 105 |  |  | 826 |  |  | 390 |
Net other postretirement benefit cost |  |  | ($1,004 | ) |  |  | $3,149 |  |  |  | ($257 | ) |  |  | ($629 | ) |  |  | ($437 | ) |  |  | $174 |
Entergy Mississippi [Member] | Non Qualified Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries recognized the following pension cost for their employees for their non-qualified pension plans for the first quarters of 2018 and 2017:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
2018 |  | $132 |  |  |  | $50 |  |  |  | $80 |  |  |  | $21 |  |  |  | $137 |
2017 |  | $105 |  |  |  | $48 |  |  |  | $64 |  |  |  | $18 |  |  |  | $127 |
Entergy New Orleans [Member] | Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ qualified pension cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $6,189 |  |  |  | $8,446 |  |  |  | $1,822 |  |  |  | $673 |  |  |  | $1,589 |  |  |  | $1,776 |
Interest cost on projects benefit obligation |  | 13,004 |  |  | 14,940 |  |  | 3,769 |  |  | 1,813 |  |  | 3,348 |  |  | 3,227 |
Expected return on assets |  | (21,851 | ) |  | (24,809 | ) |  | (6,502 | ) |  | (2,993 | ) |  | (6,523 | ) |  | (4,991 | )
Amortization of loss |  | 13,412 |  |  | 14,450 |  |  | 3,610 |  |  | 1,954 |  |  | 2,626 |  |  | 3,715 |
Net pension cost |  |  | $10,754 |  |  |  | $13,027 |  |  |  | $2,699 |  |  |  | $1,447 |  |  |  | $1,040 |  |  |  | $3,727 |
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $5,090 |  |  |  | $6,925 |  |  |  | $1,472 |  |  |  | $625 |  |  |  | $1,364 |  |  |  | $1,536 |
Interest cost on projected benefit obligation |  | 12,944 |  |  | 14,809 |  |  | 3,732 |  |  | 1,791 |  |  | 3,392 |  |  | 3,091 |
Expected return on assets |  | (20,427 | ) |  | (23,017 | ) |  | (6,131 | ) |  | (2,800 | ) |  | (6,180 | ) |  | (4,663 | )
Amortization of loss |  | 11,640 |  |  | 12,354 |  |  | 3,053 |  |  | 1,658 |  |  | 2,310 |  |  | 2,964 |
Net pension cost |  |  | $9,247 |  |  |  | $11,071 |  |  |  | $2,126 |  |  |  | $1,274 |  |  |  | $886 |  |  |  | $2,928 |
Expected Employer Contributions | Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2018:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2018 pension contributions |  | $64,062 |  |  |  | $71,917 |  |  |  | $14,933 |  |  |  | $7,250 |  |  |  | $10,883 |  |  |  | $13,786 |
Pension contributions made through March 2018 |  | $17,373 |  |  |  | $19,510 |  |  |  | $4,194 |  |  |  | $2,061 |  |  |  | $3,873 |  |  |  | $3,715 |
Remaining estimated pension contributions to be made in 2018 |  | $46,689 |  |  |  | $52,407 |  |  |  | $10,739 |  |  |  | $5,189 |  |  |  | $7,010 |  |  |  | $10,071 |
Entergy New Orleans [Member] | Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ other postretirement benefit cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $793 |  |  |  | $1,556 |  |  |  | $321 |  |  |  | $129 |  |  |  | $330 |  |  |  | $306 |
Interest cost on APBO |  | 1,997 |  |  | 2,789 |  |  | 683 |  |  | 417 |  |  | 939 |  |  | 500 |
Expected return on assets |  | (4,342 | ) |  | — |  |  | (1,303 | ) |  | (1,313 | ) |  | (2,446 | ) |  | (783 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 289 |  |  | 388 |  |  | 377 |  |  | 34 |  |  | 206 |  |  | 233 |
Net other postretirement benefit cost |  |  | ($2,541 | ) |  |  | $2,799 |  |  |  | ($378 | ) |  |  | ($919 | ) |  |  | ($1,550 | ) |  |  | ($122 | )
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $863 |  |  |  | $1,593 |  |  |  | $290 |  |  |  | $142 |  |  |  | $372 |  |  |  | $320 |
Interest cost on APBO |  | 2,255 |  |  | 3,025 |  |  | 690 |  |  | 469 |  |  | 1,124 |  |  | 559 |
Expected return on assets |  | (3,959 | ) |  | — |  |  | (1,200 | ) |  | (1,159 | ) |  | (2,180 | ) |  | (717 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 1,115 |  |  | 465 |  |  | 419 |  |  | 105 |  |  | 826 |  |  | 390 |
Net other postretirement benefit cost |  |  | ($1,004 | ) |  |  | $3,149 |  |  |  | ($257 | ) |  |  | ($629 | ) |  |  | ($437 | ) |  |  | $174 |
Entergy New Orleans [Member] | Non Qualified Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries recognized the following pension cost for their employees for their non-qualified pension plans for the first quarters of 2018 and 2017:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
2018 |  | $132 |  |  |  | $50 |  |  |  | $80 |  |  |  | $21 |  |  |  | $137 |
2017 |  | $105 |  |  |  | $48 |  |  |  | $64 |  |  |  | $18 |  |  |  | $127 |
Entergy Texas [Member] | Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ qualified pension cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $6,189 |  |  |  | $8,446 |  |  |  | $1,822 |  |  |  | $673 |  |  |  | $1,589 |  |  |  | $1,776 |
Interest cost on projects benefit obligation |  | 13,004 |  |  | 14,940 |  |  | 3,769 |  |  | 1,813 |  |  | 3,348 |  |  | 3,227 |
Expected return on assets |  | (21,851 | ) |  | (24,809 | ) |  | (6,502 | ) |  | (2,993 | ) |  | (6,523 | ) |  | (4,991 | )
Amortization of loss |  | 13,412 |  |  | 14,450 |  |  | 3,610 |  |  | 1,954 |  |  | 2,626 |  |  | 3,715 |
Net pension cost |  |  | $10,754 |  |  |  | $13,027 |  |  |  | $2,699 |  |  |  | $1,447 |  |  |  | $1,040 |  |  |  | $3,727 |
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $5,090 |  |  |  | $6,925 |  |  |  | $1,472 |  |  |  | $625 |  |  |  | $1,364 |  |  |  | $1,536 |
Interest cost on projected benefit obligation |  | 12,944 |  |  | 14,809 |  |  | 3,732 |  |  | 1,791 |  |  | 3,392 |  |  | 3,091 |
Expected return on assets |  | (20,427 | ) |  | (23,017 | ) |  | (6,131 | ) |  | (2,800 | ) |  | (6,180 | ) |  | (4,663 | )
Amortization of loss |  | 11,640 |  |  | 12,354 |  |  | 3,053 |  |  | 1,658 |  |  | 2,310 |  |  | 2,964 |
Net pension cost |  |  | $9,247 |  |  |  | $11,071 |  |  |  | $2,126 |  |  |  | $1,274 |  |  |  | $886 |  |  |  | $2,928 |
Expected Employer Contributions | Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2018:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2018 pension contributions |  | $64,062 |  |  |  | $71,917 |  |  |  | $14,933 |  |  |  | $7,250 |  |  |  | $10,883 |  |  |  | $13,786 |
Pension contributions made through March 2018 |  | $17,373 |  |  |  | $19,510 |  |  |  | $4,194 |  |  |  | $2,061 |  |  |  | $3,873 |  |  |  | $3,715 |
Remaining estimated pension contributions to be made in 2018 |  | $46,689 |  |  |  | $52,407 |  |  |  | $10,739 |  |  |  | $5,189 |  |  |  | $7,010 |  |  |  | $10,071 |
Entergy Texas [Member] | Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ other postretirement benefit cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $793 |  |  |  | $1,556 |  |  |  | $321 |  |  |  | $129 |  |  |  | $330 |  |  |  | $306 |
Interest cost on APBO |  | 1,997 |  |  | 2,789 |  |  | 683 |  |  | 417 |  |  | 939 |  |  | 500 |
Expected return on assets |  | (4,342 | ) |  | — |  |  | (1,303 | ) |  | (1,313 | ) |  | (2,446 | ) |  | (783 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 289 |  |  | 388 |  |  | 377 |  |  | 34 |  |  | 206 |  |  | 233 |
Net other postretirement benefit cost |  |  | ($2,541 | ) |  |  | $2,799 |  |  |  | ($378 | ) |  |  | ($919 | ) |  |  | ($1,550 | ) |  |  | ($122 | )
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $863 |  |  |  | $1,593 |  |  |  | $290 |  |  |  | $142 |  |  |  | $372 |  |  |  | $320 |
Interest cost on APBO |  | 2,255 |  |  | 3,025 |  |  | 690 |  |  | 469 |  |  | 1,124 |  |  | 559 |
Expected return on assets |  | (3,959 | ) |  | — |  |  | (1,200 | ) |  | (1,159 | ) |  | (2,180 | ) |  | (717 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 1,115 |  |  | 465 |  |  | 419 |  |  | 105 |  |  | 826 |  |  | 390 |
Net other postretirement benefit cost |  |  | ($1,004 | ) |  |  | $3,149 |  |  |  | ($257 | ) |  |  | ($629 | ) |  |  | ($437 | ) |  |  | $174 |
Entergy Texas [Member] | Non Qualified Pension Plans [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries recognized the following pension cost for their employees for their non-qualified pension plans for the first quarters of 2018 and 2017:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
2018 |  | $132 |  |  |  | $50 |  |  |  | $80 |  |  |  | $21 |  |  |  | $137 |
2017 |  | $105 |  |  |  | $48 |  |  |  | $64 |  |  |  | $18 |  |  |  | $127 |
System Energy [Member] | Pension Plans Defined Benefit [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ qualified pension cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $6,189 |  |  |  | $8,446 |  |  |  | $1,822 |  |  |  | $673 |  |  |  | $1,589 |  |  |  | $1,776 |
Interest cost on projects benefit obligation |  | 13,004 |  |  | 14,940 |  |  | 3,769 |  |  | 1,813 |  |  | 3,348 |  |  | 3,227 |
Expected return on assets |  | (21,851 | ) |  | (24,809 | ) |  | (6,502 | ) |  | (2,993 | ) |  | (6,523 | ) |  | (4,991 | )
Amortization of loss |  | 13,412 |  |  | 14,450 |  |  | 3,610 |  |  | 1,954 |  |  | 2,626 |  |  | 3,715 |
Net pension cost |  |  | $10,754 |  |  |  | $13,027 |  |  |  | $2,699 |  |  |  | $1,447 |  |  |  | $1,040 |  |  |  | $3,727 |
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $5,090 |  |  |  | $6,925 |  |  |  | $1,472 |  |  |  | $625 |  |  |  | $1,364 |  |  |  | $1,536 |
Interest cost on projected benefit obligation |  | 12,944 |  |  | 14,809 |  |  | 3,732 |  |  | 1,791 |  |  | 3,392 |  |  | 3,091 |
Expected return on assets |  | (20,427 | ) |  | (23,017 | ) |  | (6,131 | ) |  | (2,800 | ) |  | (6,180 | ) |  | (4,663 | )
Amortization of loss |  | 11,640 |  |  | 12,354 |  |  | 3,053 |  |  | 1,658 |  |  | 2,310 |  |  | 2,964 |
Net pension cost |  |  | $9,247 |  |  |  | $11,071 |  |  |  | $2,126 |  |  |  | $1,274 |  |  |  | $886 |  |  |  | $2,928 |
Expected Employer Contributions | Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2018:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2018 pension contributions |  | $64,062 |  |  |  | $71,917 |  |  |  | $14,933 |  |  |  | $7,250 |  |  |  | $10,883 |  |  |  | $13,786 |
Pension contributions made through March 2018 |  | $17,373 |  |  |  | $19,510 |  |  |  | $4,194 |  |  |  | $2,061 |  |  |  | $3,873 |  |  |  | $3,715 |
Remaining estimated pension contributions to be made in 2018 |  | $46,689 |  |  |  | $52,407 |  |  |  | $10,739 |  |  |  | $5,189 |  |  |  | $7,010 |  |  |  | $10,071 |
System Energy [Member] | Other Postretirement [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Components Of Net Pension Cost |
The Registrant Subsidiaries’ other postretirement benefit cost, including amounts capitalized, for their employees for the first quarters of 2018 and 2017, included the following components:
2018 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $793 |  |  |  | $1,556 |  |  |  | $321 |  |  |  | $129 |  |  |  | $330 |  |  |  | $306 |
Interest cost on APBO |  | 1,997 |  |  | 2,789 |  |  | 683 |  |  | 417 |  |  | 939 |  |  | 500 |
Expected return on assets |  | (4,342 | ) |  | — |  |  | (1,303 | ) |  | (1,313 | ) |  | (2,446 | ) |  | (783 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 289 |  |  | 388 |  |  | 377 |  |  | 34 |  |  | 206 |  |  | 233 |
Net other postretirement benefit cost |  |  | ($2,541 | ) |  |  | $2,799 |  |  |  | ($378 | ) |  |  | ($919 | ) |  |  | ($1,550 | ) |  |  | ($122 | )
2017 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned during the period |  |  | $863 |  |  |  | $1,593 |  |  |  | $290 |  |  |  | $142 |  |  |  | $372 |  |  |  | $320 |
Interest cost on APBO |  | 2,255 |  |  | 3,025 |  |  | 690 |  |  | 469 |  |  | 1,124 |  |  | 559 |
Expected return on assets |  | (3,959 | ) |  | — |  |  | (1,200 | ) |  | (1,159 | ) |  | (2,180 | ) |  | (717 | )
Amortization of prior service credit |  | (1,278 | ) |  | (1,934 | ) |  | (456 | ) |  | (186 | ) |  | (579 | ) |  | (378 | )
Amortization of loss |  | 1,115 |  |  | 465 |  |  | 419 |  |  | 105 |  |  | 826 |  |  | 390 |
Net other postretirement benefit cost |  |  | ($1,004 | ) |  |  | $3,149 |  |  |  | ($257 | ) |  |  | ($629 | ) |  |  | ($437 | ) |  |  | $174 |

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