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Retirement And Other Postretirement Benefits (Tables) | 3 Months Ended
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Mar. 31, 2016
Parent Company [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Reclassification out of Accumulated Other Comprehensive Income, amortization | Reclassification out of Accumulated Other Comprehensive Income (Loss)
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 2016 and 2015:
2016 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($270 | ) |  |  | $7,738 |  |  |  | ($113 | ) |  |  | $7,355 |
Amortization of loss |  | (12,482 | ) |  | (2,063 | ) |  | (630 | ) |  | (15,175 | )
|  |  | ($12,752 | ) |  |  | $5,675 |  |  |  | ($743 | ) |  |  | ($7,820 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,947 |  |  |  | $— |  |  |  | $1,947 |
Amortization of loss |  | (836 | ) |  | (731 | ) |  | (2 | ) |  | (1,569 | )
|  |  | ($836 | ) |  |  | $1,216 |  |  |  | ($2 | ) |  |  | $378 |
2015 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($389 | ) |  |  | $6,482 |  |  |  | ($107 | ) |  |  | $5,986 |
Amortization of loss |  | (12,627 | ) |  | (4,409 | ) |  | (552 | ) |  | (17,588 | )
|  |  | ($13,016 | ) |  |  | $2,073 |  |  |  | ($659 | ) |  |  | ($11,602 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,867 |  |  |  | $— |  |  |  | $1,867 |
Amortization of loss |  | (751 | ) |  | (1,779 | ) |  | (5 | ) |  | (2,535 | )
|  |  | ($751 | ) |  |  | $88 |  |  |  | ($5 | ) |  |  | ($668 | )
Parent Company [Member] | 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 2016 and 2015, included the following components:
| 2016 |  | 2015
| (In Thousands)
Service cost - benefits earned during the period |  | $35,811 |  |  |  | $43,762 |
Interest cost on projected benefit obligation | 65,403 |  |  | 75,694 |
Expected return on assets | (97,366 | ) |  | (98,655 | )
Amortization of prior service cost | 270 |  |  | 390 |
Amortization of loss | 48,824 |  |  | 58,981 |
Special termination benefit | — |  |  | 76 |
Net pension costs |  | $52,942 |  |  |  | $80,248 |
Parent Company [Member] | 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 2016 and 2015, included the following components:
| 2016 |  | 2015
| (In Thousands)
Service cost - benefits earned during the period |  | $8,073 |  |  |  | $11,326 |
Interest cost on accumulated postretirement benefit obligation (APBO) | 14,083 |  |  | 17,984 |
Expected return on assets | (10,455 | ) |  | (11,344 | )
Amortization of prior service credit | (11,373 | ) |  | (9,320 | )
Amortization of loss | 4,554 |  |  | 7,893 |
Net other postretirement benefit cost |  | $4,882 |  |  |  | $16,539 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $5,181 |  |  |  | $7,049 |  |  |  | $1,562 |  |  |  | $656 |  |  |  | $1,416 |  |  |  | $1,566 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 13,055 |  |  | 14,870 |  |  | 3,811 |  |  | 1,814 |  |  | 3,557 |  |  | 2,992 |
Expected return on assets |  | (19,772 | ) |  | (22,096 | ) |  | (5,981 | ) |  | (2,687 | ) |  | (6,062 | ) |  | (4,459 | )
Amortization of loss |  | 10,936 |  |  | 11,946 |  |  | 2,985 |  |  | 1,615 |  |  | 2,340 |  |  | 2,604 |
Net pension cost |  |  | $9,400 |  |  |  | $11,769 |  |  |  | $2,377 |  |  |  | $1,398 |  |  |  | $1,251 |  |  |  | $2,703 |
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $6,661 |  |  |  | $8,599 |  |  |  | $1,982 |  |  |  | $849 |  |  |  | $1,645 |  |  |  | $1,957 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 15,471 |  |  | 17,367 |  |  | 4,502 |  |  | 2,108 |  |  | 4,354 |  |  | 3,493 |
Expected return on assets |  | (20,026 | ) |  | (22,701 | ) |  | (6,105 | ) |  | (2,725 | ) |  | (6,222 | ) |  | (4,568 | )
Amortization of loss |  | 13,564 |  |  | 14,951 |  |  | 3,724 |  |  | 2,013 |  |  | 3,238 |  |  | 3,264 |
Net pension cost |  |  | $15,670 |  |  |  | $18,216 |  |  |  | $4,103 |  |  |  | $2,245 |  |  |  | $3,015 |  |  |  | $4,146 |
Expected Employer Contributions | Based on current assumptions, Entergy expects to contribute $387.5 million to its qualified pension plans in 2016. As of March 31, 2016, Entergy had contributed $88.2 million to its pension plans. Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2016:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2016 pension contributions |  | $82,831 |  |  |  | $83,909 |  |  |  | $19,913 |  |  |  | $10,694 |  |  |  | $15,770 |  |  |  | $20,206 |
Pension contributions made through March 2016 |  | $19,494 |  |  |  | $20,195 |  |  |  | $4,946 |  |  |  | $2,434 |  |  |  | $3,798 |  |  |  | $4,613 |
Remaining estimated pension contributions to be made in 2016 |  | $63,337 |  |  |  | $63,714 |  |  |  | $14,967 |  |  |  | $8,260 |  |  |  | $11,972 |  |  |  | $15,593 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $978 |  |  |  | $1,869 |  |  |  | $386 |  |  |  | $156 |  |  |  | $398 |  |  |  | $334 |
Interest cost on APBO |  | 2,324 |  |  | 3,260 |  |  | 709 |  |  | 448 |  |  | 1,039 |  |  | 529 |
Expected return on assets |  | (4,464 | ) |  | — |  |  | (1,379 | ) |  | (1,154 | ) |  | (2,394 | ) |  | (814 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (1,368 | ) |  | (1,947 | ) |  | (234 | ) |  | (186 | ) |  | (681 | ) |  | (393 | )
Amortization of loss |  | 1,064 |  |  | 731 |  |  | 223 |  |  | 37 |  |  | 537 |  |  | 287 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | ($1,466 | ) |  |  | $3,913 |  |  |  | ($295 | ) |  |  | ($699 | ) |  |  | ($1,101 | ) |  |  | ($57 | )
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $1,739 |  |  |  | $2,474 |  |  |  | $507 |  |  |  | $205 |  |  |  | $500 |  |  |  | $470 |
Interest cost on APBO |  | 3,130 |  |  | 4,078 |  |  | 859 |  |  | 652 |  |  | 1,342 |  |  | 628 |
Expected return on assets |  | (4,798 | ) |  | — |  |  | (1,542 | ) |  | (1,201 | ) |  | (2,588 | ) |  | (911 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (610 | ) |  | (1,867 | ) |  | (229 | ) |  | (177 | ) |  | (681 | ) |  | (366 | )
Amortization of loss |  | 1,339 |  |  | 1,780 |  |  | 215 |  |  | 118 |  |  | 685 |  |  | 300 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | $800 |  |  |  | $6,465 |  |  |  | ($190 | ) |  |  | ($403 | ) |  |  | ($742 | ) |  |  | $121 |
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 in the first quarters of 2016 and 2015:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
Non-qualified pension cost first quarter 2016 |  | $106 |  |  |  | $59 |  |  |  | $59 |  |  |  | $16 |  |  |  | $127 |
Non-qualified pension cost first quarter 2015 |  | $113 |  |  |  | $68 |  |  |  | $59 |  |  |  | $16 |  |  |  | $149 |
Entergy Louisiana [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Reclassification out of Accumulated Other Comprehensive Income, amortization | Reclassification out of Accumulated Other Comprehensive Income (Loss)
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 2016 and 2015:
2016 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($270 | ) |  |  | $7,738 |  |  |  | ($113 | ) |  |  | $7,355 |
Amortization of loss |  | (12,482 | ) |  | (2,063 | ) |  | (630 | ) |  | (15,175 | )
|  |  | ($12,752 | ) |  |  | $5,675 |  |  |  | ($743 | ) |  |  | ($7,820 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,947 |  |  |  | $— |  |  |  | $1,947 |
Amortization of loss |  | (836 | ) |  | (731 | ) |  | (2 | ) |  | (1,569 | )
|  |  | ($836 | ) |  |  | $1,216 |  |  |  | ($2 | ) |  |  | $378 |
2015 |  | Qualified Pension Costs |  | Other Postretirement Costs |  | Non-Qualified Pension Costs |  | Total
|  | (In Thousands) |  |
Entergy |  |  |  |  |  |  |  |
Amortization of prior service (cost)/credit |  |  | ($389 | ) |  |  | $6,482 |  |  |  | ($107 | ) |  |  | $5,986 |
Amortization of loss |  | (12,627 | ) |  | (4,409 | ) |  | (552 | ) |  | (17,588 | )
|  |  | ($13,016 | ) |  |  | $2,073 |  |  |  | ($659 | ) |  |  | ($11,602 | )
Entergy Louisiana |  |  |  |  |  |  |  |
Amortization of prior service credit |  |  | $— |  |  |  | $1,867 |  |  |  | $— |  |  |  | $1,867 |
Amortization of loss |  | (751 | ) |  | (1,779 | ) |  | (5 | ) |  | (2,535 | )
|  |  | ($751 | ) |  |  | $88 |  |  |  | ($5 | ) |  |  | ($668 | )
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $5,181 |  |  |  | $7,049 |  |  |  | $1,562 |  |  |  | $656 |  |  |  | $1,416 |  |  |  | $1,566 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 13,055 |  |  | 14,870 |  |  | 3,811 |  |  | 1,814 |  |  | 3,557 |  |  | 2,992 |
Expected return on assets |  | (19,772 | ) |  | (22,096 | ) |  | (5,981 | ) |  | (2,687 | ) |  | (6,062 | ) |  | (4,459 | )
Amortization of loss |  | 10,936 |  |  | 11,946 |  |  | 2,985 |  |  | 1,615 |  |  | 2,340 |  |  | 2,604 |
Net pension cost |  |  | $9,400 |  |  |  | $11,769 |  |  |  | $2,377 |  |  |  | $1,398 |  |  |  | $1,251 |  |  |  | $2,703 |
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $6,661 |  |  |  | $8,599 |  |  |  | $1,982 |  |  |  | $849 |  |  |  | $1,645 |  |  |  | $1,957 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 15,471 |  |  | 17,367 |  |  | 4,502 |  |  | 2,108 |  |  | 4,354 |  |  | 3,493 |
Expected return on assets |  | (20,026 | ) |  | (22,701 | ) |  | (6,105 | ) |  | (2,725 | ) |  | (6,222 | ) |  | (4,568 | )
Amortization of loss |  | 13,564 |  |  | 14,951 |  |  | 3,724 |  |  | 2,013 |  |  | 3,238 |  |  | 3,264 |
Net pension cost |  |  | $15,670 |  |  |  | $18,216 |  |  |  | $4,103 |  |  |  | $2,245 |  |  |  | $3,015 |  |  |  | $4,146 |
Expected Employer Contributions | Based on current assumptions, Entergy expects to contribute $387.5 million to its qualified pension plans in 2016. As of March 31, 2016, Entergy had contributed $88.2 million to its pension plans. Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2016:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2016 pension contributions |  | $82,831 |  |  |  | $83,909 |  |  |  | $19,913 |  |  |  | $10,694 |  |  |  | $15,770 |  |  |  | $20,206 |
Pension contributions made through March 2016 |  | $19,494 |  |  |  | $20,195 |  |  |  | $4,946 |  |  |  | $2,434 |  |  |  | $3,798 |  |  |  | $4,613 |
Remaining estimated pension contributions to be made in 2016 |  | $63,337 |  |  |  | $63,714 |  |  |  | $14,967 |  |  |  | $8,260 |  |  |  | $11,972 |  |  |  | $15,593 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $978 |  |  |  | $1,869 |  |  |  | $386 |  |  |  | $156 |  |  |  | $398 |  |  |  | $334 |
Interest cost on APBO |  | 2,324 |  |  | 3,260 |  |  | 709 |  |  | 448 |  |  | 1,039 |  |  | 529 |
Expected return on assets |  | (4,464 | ) |  | — |  |  | (1,379 | ) |  | (1,154 | ) |  | (2,394 | ) |  | (814 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (1,368 | ) |  | (1,947 | ) |  | (234 | ) |  | (186 | ) |  | (681 | ) |  | (393 | )
Amortization of loss |  | 1,064 |  |  | 731 |  |  | 223 |  |  | 37 |  |  | 537 |  |  | 287 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | ($1,466 | ) |  |  | $3,913 |  |  |  | ($295 | ) |  |  | ($699 | ) |  |  | ($1,101 | ) |  |  | ($57 | )
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $1,739 |  |  |  | $2,474 |  |  |  | $507 |  |  |  | $205 |  |  |  | $500 |  |  |  | $470 |
Interest cost on APBO |  | 3,130 |  |  | 4,078 |  |  | 859 |  |  | 652 |  |  | 1,342 |  |  | 628 |
Expected return on assets |  | (4,798 | ) |  | — |  |  | (1,542 | ) |  | (1,201 | ) |  | (2,588 | ) |  | (911 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (610 | ) |  | (1,867 | ) |  | (229 | ) |  | (177 | ) |  | (681 | ) |  | (366 | )
Amortization of loss |  | 1,339 |  |  | 1,780 |  |  | 215 |  |  | 118 |  |  | 685 |  |  | 300 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | $800 |  |  |  | $6,465 |  |  |  | ($190 | ) |  |  | ($403 | ) |  |  | ($742 | ) |  |  | $121 |
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 in the first quarters of 2016 and 2015:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
Non-qualified pension cost first quarter 2016 |  | $106 |  |  |  | $59 |  |  |  | $59 |  |  |  | $16 |  |  |  | $127 |
Non-qualified pension cost first quarter 2015 |  | $113 |  |  |  | $68 |  |  |  | $59 |  |  |  | $16 |  |  |  | $149 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $5,181 |  |  |  | $7,049 |  |  |  | $1,562 |  |  |  | $656 |  |  |  | $1,416 |  |  |  | $1,566 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 13,055 |  |  | 14,870 |  |  | 3,811 |  |  | 1,814 |  |  | 3,557 |  |  | 2,992 |
Expected return on assets |  | (19,772 | ) |  | (22,096 | ) |  | (5,981 | ) |  | (2,687 | ) |  | (6,062 | ) |  | (4,459 | )
Amortization of loss |  | 10,936 |  |  | 11,946 |  |  | 2,985 |  |  | 1,615 |  |  | 2,340 |  |  | 2,604 |
Net pension cost |  |  | $9,400 |  |  |  | $11,769 |  |  |  | $2,377 |  |  |  | $1,398 |  |  |  | $1,251 |  |  |  | $2,703 |
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $6,661 |  |  |  | $8,599 |  |  |  | $1,982 |  |  |  | $849 |  |  |  | $1,645 |  |  |  | $1,957 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 15,471 |  |  | 17,367 |  |  | 4,502 |  |  | 2,108 |  |  | 4,354 |  |  | 3,493 |
Expected return on assets |  | (20,026 | ) |  | (22,701 | ) |  | (6,105 | ) |  | (2,725 | ) |  | (6,222 | ) |  | (4,568 | )
Amortization of loss |  | 13,564 |  |  | 14,951 |  |  | 3,724 |  |  | 2,013 |  |  | 3,238 |  |  | 3,264 |
Net pension cost |  |  | $15,670 |  |  |  | $18,216 |  |  |  | $4,103 |  |  |  | $2,245 |  |  |  | $3,015 |  |  |  | $4,146 |
Expected Employer Contributions | Based on current assumptions, Entergy expects to contribute $387.5 million to its qualified pension plans in 2016. As of March 31, 2016, Entergy had contributed $88.2 million to its pension plans. Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2016:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2016 pension contributions |  | $82,831 |  |  |  | $83,909 |  |  |  | $19,913 |  |  |  | $10,694 |  |  |  | $15,770 |  |  |  | $20,206 |
Pension contributions made through March 2016 |  | $19,494 |  |  |  | $20,195 |  |  |  | $4,946 |  |  |  | $2,434 |  |  |  | $3,798 |  |  |  | $4,613 |
Remaining estimated pension contributions to be made in 2016 |  | $63,337 |  |  |  | $63,714 |  |  |  | $14,967 |  |  |  | $8,260 |  |  |  | $11,972 |  |  |  | $15,593 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $978 |  |  |  | $1,869 |  |  |  | $386 |  |  |  | $156 |  |  |  | $398 |  |  |  | $334 |
Interest cost on APBO |  | 2,324 |  |  | 3,260 |  |  | 709 |  |  | 448 |  |  | 1,039 |  |  | 529 |
Expected return on assets |  | (4,464 | ) |  | — |  |  | (1,379 | ) |  | (1,154 | ) |  | (2,394 | ) |  | (814 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (1,368 | ) |  | (1,947 | ) |  | (234 | ) |  | (186 | ) |  | (681 | ) |  | (393 | )
Amortization of loss |  | 1,064 |  |  | 731 |  |  | 223 |  |  | 37 |  |  | 537 |  |  | 287 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | ($1,466 | ) |  |  | $3,913 |  |  |  | ($295 | ) |  |  | ($699 | ) |  |  | ($1,101 | ) |  |  | ($57 | )
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $1,739 |  |  |  | $2,474 |  |  |  | $507 |  |  |  | $205 |  |  |  | $500 |  |  |  | $470 |
Interest cost on APBO |  | 3,130 |  |  | 4,078 |  |  | 859 |  |  | 652 |  |  | 1,342 |  |  | 628 |
Expected return on assets |  | (4,798 | ) |  | — |  |  | (1,542 | ) |  | (1,201 | ) |  | (2,588 | ) |  | (911 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (610 | ) |  | (1,867 | ) |  | (229 | ) |  | (177 | ) |  | (681 | ) |  | (366 | )
Amortization of loss |  | 1,339 |  |  | 1,780 |  |  | 215 |  |  | 118 |  |  | 685 |  |  | 300 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | $800 |  |  |  | $6,465 |  |  |  | ($190 | ) |  |  | ($403 | ) |  |  | ($742 | ) |  |  | $121 |
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 in the first quarters of 2016 and 2015:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
Non-qualified pension cost first quarter 2016 |  | $106 |  |  |  | $59 |  |  |  | $59 |  |  |  | $16 |  |  |  | $127 |
Non-qualified pension cost first quarter 2015 |  | $113 |  |  |  | $68 |  |  |  | $59 |  |  |  | $16 |  |  |  | $149 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $5,181 |  |  |  | $7,049 |  |  |  | $1,562 |  |  |  | $656 |  |  |  | $1,416 |  |  |  | $1,566 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 13,055 |  |  | 14,870 |  |  | 3,811 |  |  | 1,814 |  |  | 3,557 |  |  | 2,992 |
Expected return on assets |  | (19,772 | ) |  | (22,096 | ) |  | (5,981 | ) |  | (2,687 | ) |  | (6,062 | ) |  | (4,459 | )
Amortization of loss |  | 10,936 |  |  | 11,946 |  |  | 2,985 |  |  | 1,615 |  |  | 2,340 |  |  | 2,604 |
Net pension cost |  |  | $9,400 |  |  |  | $11,769 |  |  |  | $2,377 |  |  |  | $1,398 |  |  |  | $1,251 |  |  |  | $2,703 |
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $6,661 |  |  |  | $8,599 |  |  |  | $1,982 |  |  |  | $849 |  |  |  | $1,645 |  |  |  | $1,957 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 15,471 |  |  | 17,367 |  |  | 4,502 |  |  | 2,108 |  |  | 4,354 |  |  | 3,493 |
Expected return on assets |  | (20,026 | ) |  | (22,701 | ) |  | (6,105 | ) |  | (2,725 | ) |  | (6,222 | ) |  | (4,568 | )
Amortization of loss |  | 13,564 |  |  | 14,951 |  |  | 3,724 |  |  | 2,013 |  |  | 3,238 |  |  | 3,264 |
Net pension cost |  |  | $15,670 |  |  |  | $18,216 |  |  |  | $4,103 |  |  |  | $2,245 |  |  |  | $3,015 |  |  |  | $4,146 |
Expected Employer Contributions | Based on current assumptions, Entergy expects to contribute $387.5 million to its qualified pension plans in 2016. As of March 31, 2016, Entergy had contributed $88.2 million to its pension plans. Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2016:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2016 pension contributions |  | $82,831 |  |  |  | $83,909 |  |  |  | $19,913 |  |  |  | $10,694 |  |  |  | $15,770 |  |  |  | $20,206 |
Pension contributions made through March 2016 |  | $19,494 |  |  |  | $20,195 |  |  |  | $4,946 |  |  |  | $2,434 |  |  |  | $3,798 |  |  |  | $4,613 |
Remaining estimated pension contributions to be made in 2016 |  | $63,337 |  |  |  | $63,714 |  |  |  | $14,967 |  |  |  | $8,260 |  |  |  | $11,972 |  |  |  | $15,593 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $978 |  |  |  | $1,869 |  |  |  | $386 |  |  |  | $156 |  |  |  | $398 |  |  |  | $334 |
Interest cost on APBO |  | 2,324 |  |  | 3,260 |  |  | 709 |  |  | 448 |  |  | 1,039 |  |  | 529 |
Expected return on assets |  | (4,464 | ) |  | — |  |  | (1,379 | ) |  | (1,154 | ) |  | (2,394 | ) |  | (814 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (1,368 | ) |  | (1,947 | ) |  | (234 | ) |  | (186 | ) |  | (681 | ) |  | (393 | )
Amortization of loss |  | 1,064 |  |  | 731 |  |  | 223 |  |  | 37 |  |  | 537 |  |  | 287 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | ($1,466 | ) |  |  | $3,913 |  |  |  | ($295 | ) |  |  | ($699 | ) |  |  | ($1,101 | ) |  |  | ($57 | )
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $1,739 |  |  |  | $2,474 |  |  |  | $507 |  |  |  | $205 |  |  |  | $500 |  |  |  | $470 |
Interest cost on APBO |  | 3,130 |  |  | 4,078 |  |  | 859 |  |  | 652 |  |  | 1,342 |  |  | 628 |
Expected return on assets |  | (4,798 | ) |  | — |  |  | (1,542 | ) |  | (1,201 | ) |  | (2,588 | ) |  | (911 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (610 | ) |  | (1,867 | ) |  | (229 | ) |  | (177 | ) |  | (681 | ) |  | (366 | )
Amortization of loss |  | 1,339 |  |  | 1,780 |  |  | 215 |  |  | 118 |  |  | 685 |  |  | 300 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | $800 |  |  |  | $6,465 |  |  |  | ($190 | ) |  |  | ($403 | ) |  |  | ($742 | ) |  |  | $121 |
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 in the first quarters of 2016 and 2015:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
Non-qualified pension cost first quarter 2016 |  | $106 |  |  |  | $59 |  |  |  | $59 |  |  |  | $16 |  |  |  | $127 |
Non-qualified pension cost first quarter 2015 |  | $113 |  |  |  | $68 |  |  |  | $59 |  |  |  | $16 |  |  |  | $149 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $5,181 |  |  |  | $7,049 |  |  |  | $1,562 |  |  |  | $656 |  |  |  | $1,416 |  |  |  | $1,566 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 13,055 |  |  | 14,870 |  |  | 3,811 |  |  | 1,814 |  |  | 3,557 |  |  | 2,992 |
Expected return on assets |  | (19,772 | ) |  | (22,096 | ) |  | (5,981 | ) |  | (2,687 | ) |  | (6,062 | ) |  | (4,459 | )
Amortization of loss |  | 10,936 |  |  | 11,946 |  |  | 2,985 |  |  | 1,615 |  |  | 2,340 |  |  | 2,604 |
Net pension cost |  |  | $9,400 |  |  |  | $11,769 |  |  |  | $2,377 |  |  |  | $1,398 |  |  |  | $1,251 |  |  |  | $2,703 |
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $6,661 |  |  |  | $8,599 |  |  |  | $1,982 |  |  |  | $849 |  |  |  | $1,645 |  |  |  | $1,957 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 15,471 |  |  | 17,367 |  |  | 4,502 |  |  | 2,108 |  |  | 4,354 |  |  | 3,493 |
Expected return on assets |  | (20,026 | ) |  | (22,701 | ) |  | (6,105 | ) |  | (2,725 | ) |  | (6,222 | ) |  | (4,568 | )
Amortization of loss |  | 13,564 |  |  | 14,951 |  |  | 3,724 |  |  | 2,013 |  |  | 3,238 |  |  | 3,264 |
Net pension cost |  |  | $15,670 |  |  |  | $18,216 |  |  |  | $4,103 |  |  |  | $2,245 |  |  |  | $3,015 |  |  |  | $4,146 |
Expected Employer Contributions | Based on current assumptions, Entergy expects to contribute $387.5 million to its qualified pension plans in 2016. As of March 31, 2016, Entergy had contributed $88.2 million to its pension plans. Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2016:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2016 pension contributions |  | $82,831 |  |  |  | $83,909 |  |  |  | $19,913 |  |  |  | $10,694 |  |  |  | $15,770 |  |  |  | $20,206 |
Pension contributions made through March 2016 |  | $19,494 |  |  |  | $20,195 |  |  |  | $4,946 |  |  |  | $2,434 |  |  |  | $3,798 |  |  |  | $4,613 |
Remaining estimated pension contributions to be made in 2016 |  | $63,337 |  |  |  | $63,714 |  |  |  | $14,967 |  |  |  | $8,260 |  |  |  | $11,972 |  |  |  | $15,593 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $978 |  |  |  | $1,869 |  |  |  | $386 |  |  |  | $156 |  |  |  | $398 |  |  |  | $334 |
Interest cost on APBO |  | 2,324 |  |  | 3,260 |  |  | 709 |  |  | 448 |  |  | 1,039 |  |  | 529 |
Expected return on assets |  | (4,464 | ) |  | — |  |  | (1,379 | ) |  | (1,154 | ) |  | (2,394 | ) |  | (814 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (1,368 | ) |  | (1,947 | ) |  | (234 | ) |  | (186 | ) |  | (681 | ) |  | (393 | )
Amortization of loss |  | 1,064 |  |  | 731 |  |  | 223 |  |  | 37 |  |  | 537 |  |  | 287 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | ($1,466 | ) |  |  | $3,913 |  |  |  | ($295 | ) |  |  | ($699 | ) |  |  | ($1,101 | ) |  |  | ($57 | )
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $1,739 |  |  |  | $2,474 |  |  |  | $507 |  |  |  | $205 |  |  |  | $500 |  |  |  | $470 |
Interest cost on APBO |  | 3,130 |  |  | 4,078 |  |  | 859 |  |  | 652 |  |  | 1,342 |  |  | 628 |
Expected return on assets |  | (4,798 | ) |  | — |  |  | (1,542 | ) |  | (1,201 | ) |  | (2,588 | ) |  | (911 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (610 | ) |  | (1,867 | ) |  | (229 | ) |  | (177 | ) |  | (681 | ) |  | (366 | )
Amortization of loss |  | 1,339 |  |  | 1,780 |  |  | 215 |  |  | 118 |  |  | 685 |  |  | 300 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | $800 |  |  |  | $6,465 |  |  |  | ($190 | ) |  |  | ($403 | ) |  |  | ($742 | ) |  |  | $121 |
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 in the first quarters of 2016 and 2015:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas
| (In Thousands)
Non-qualified pension cost first quarter 2016 |  | $106 |  |  |  | $59 |  |  |  | $59 |  |  |  | $16 |  |  |  | $127 |
Non-qualified pension cost first quarter 2015 |  | $113 |  |  |  | $68 |  |  |  | $59 |  |  |  | $16 |  |  |  | $149 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $5,181 |  |  |  | $7,049 |  |  |  | $1,562 |  |  |  | $656 |  |  |  | $1,416 |  |  |  | $1,566 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 13,055 |  |  | 14,870 |  |  | 3,811 |  |  | 1,814 |  |  | 3,557 |  |  | 2,992 |
Expected return on assets |  | (19,772 | ) |  | (22,096 | ) |  | (5,981 | ) |  | (2,687 | ) |  | (6,062 | ) |  | (4,459 | )
Amortization of loss |  | 10,936 |  |  | 11,946 |  |  | 2,985 |  |  | 1,615 |  |  | 2,340 |  |  | 2,604 |
Net pension cost |  |  | $9,400 |  |  |  | $11,769 |  |  |  | $2,377 |  |  |  | $1,398 |  |  |  | $1,251 |  |  |  | $2,703 |
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $6,661 |  |  |  | $8,599 |  |  |  | $1,982 |  |  |  | $849 |  |  |  | $1,645 |  |  |  | $1,957 |
Interest cost on projected |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
benefit obligation |  | 15,471 |  |  | 17,367 |  |  | 4,502 |  |  | 2,108 |  |  | 4,354 |  |  | 3,493 |
Expected return on assets |  | (20,026 | ) |  | (22,701 | ) |  | (6,105 | ) |  | (2,725 | ) |  | (6,222 | ) |  | (4,568 | )
Amortization of loss |  | 13,564 |  |  | 14,951 |  |  | 3,724 |  |  | 2,013 |  |  | 3,238 |  |  | 3,264 |
Net pension cost |  |  | $15,670 |  |  |  | $18,216 |  |  |  | $4,103 |  |  |  | $2,245 |  |  |  | $3,015 |  |  |  | $4,146 |
Expected Employer Contributions | Based on current assumptions, Entergy expects to contribute $387.5 million to its qualified pension plans in 2016. As of March 31, 2016, Entergy had contributed $88.2 million to its pension plans. Based on current assumptions, the Registrant Subsidiaries expect to contribute the following to qualified pension plans for their employees in 2016:
| Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
| (In Thousands)
Expected 2016 pension contributions |  | $82,831 |  |  |  | $83,909 |  |  |  | $19,913 |  |  |  | $10,694 |  |  |  | $15,770 |  |  |  | $20,206 |
Pension contributions made through March 2016 |  | $19,494 |  |  |  | $20,195 |  |  |  | $4,946 |  |  |  | $2,434 |  |  |  | $3,798 |  |  |  | $4,613 |
Remaining estimated pension contributions to be made in 2016 |  | $63,337 |  |  |  | $63,714 |  |  |  | $14,967 |  |  |  | $8,260 |  |  |  | $11,972 |  |  |  | $15,593 |
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 2016 and 2015, included the following components:
2016 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $978 |  |  |  | $1,869 |  |  |  | $386 |  |  |  | $156 |  |  |  | $398 |  |  |  | $334 |
Interest cost on APBO |  | 2,324 |  |  | 3,260 |  |  | 709 |  |  | 448 |  |  | 1,039 |  |  | 529 |
Expected return on assets |  | (4,464 | ) |  | — |  |  | (1,379 | ) |  | (1,154 | ) |  | (2,394 | ) |  | (814 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (1,368 | ) |  | (1,947 | ) |  | (234 | ) |  | (186 | ) |  | (681 | ) |  | (393 | )
Amortization of loss |  | 1,064 |  |  | 731 |  |  | 223 |  |  | 37 |  |  | 537 |  |  | 287 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | ($1,466 | ) |  |  | $3,913 |  |  |  | ($295 | ) |  |  | ($699 | ) |  |  | ($1,101 | ) |  |  | ($57 | )
2015 |  | Entergy Arkansas |  | Entergy Louisiana |  | Entergy Mississippi |  | Entergy New Orleans |  | Entergy Texas |  | System Energy
|  | (In Thousands)
Service cost - benefits earned |  |  |  |  |  |  |  |  |  |  |  |
during the period |  |  | $1,739 |  |  |  | $2,474 |  |  |  | $507 |  |  |  | $205 |  |  |  | $500 |  |  |  | $470 |
Interest cost on APBO |  | 3,130 |  |  | 4,078 |  |  | 859 |  |  | 652 |  |  | 1,342 |  |  | 628 |
Expected return on assets |  | (4,798 | ) |  | — |  |  | (1,542 | ) |  | (1,201 | ) |  | (2,588 | ) |  | (911 | )
Amortization of prior service |  |  |  |  |  |  |  |  |  |  |  |
credit |  | (610 | ) |  | (1,867 | ) |  | (229 | ) |  | (177 | ) |  | (681 | ) |  | (366 | )
Amortization of loss |  | 1,339 |  |  | 1,780 |  |  | 215 |  |  | 118 |  |  | 685 |  |  | 300 |
Net other postretirement |  |  |  |  |  |  |  |  |  |  |  |
benefit cost |  |  | $800 |  |  |  | $6,465 |  |  |  | ($190 | ) |  |  | ($403 | ) |  |  | ($742 | ) |  |  | $121 |

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