Defined Benefits (Tables)
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3 Months Ended |
Mar. 31, 2020 |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
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Schedule Of Net Periodic Defined Benefit Costs (Credits) |
Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL and its subsidiaries, LKE, and LG&E for the periods ended March 31: | | | | | | | | | | | | | | | | | | Pension Benefits | | Three Months | | U.S. | | U.K. | | 2020 | | 2019 | | 2020 | | 2019 | PPL | | | | | | | | Service cost | $ | 13 |
| | $ | 13 |
| | $ | 23 |
| | $ | 17 |
| Interest cost | 38 |
| | 41 |
| | 36 |
| | 47 |
| Expected return on plan assets | (60 | ) | | (61 | ) | | (158 | ) | | (148 | ) | Amortization of: | | | | | | | | Prior service cost | 2 |
| | 2 |
| | — |
| | — |
| Actuarial loss | 20 |
| | 13 |
| | 54 |
| | 24 |
| Net periodic defined benefit costs (credits) before settlements | 13 |
| | 8 |
| | (45 | ) | | (60 | ) | Settlements | — |
| | 1 |
| | — |
| | — |
| Net periodic defined benefit costs (credits) | $ | 13 |
| | $ | 9 |
| | $ | (45 | ) | | $ | (60 | ) |
| | | | | | | | | | Other Postretirement Benefits | | Three Months | | 2020 | | 2019 | PPL | | | | Service cost | $ | 2 |
| | $ | 1 |
| Interest cost | 5 |
| | 6 |
| Expected return on plan assets | (5 | ) | | (5 | ) | Net periodic defined benefit costs | $ | 2 |
| | $ | 2 |
| | | | | LKE | | | | Service cost | $ | 1 |
| | $ | 1 |
| Interest cost | 2 |
| | 2 |
| Expected return on plan assets | (2 | ) | | (2 | ) | Net periodic defined benefit costs | $ | 1 |
| | $ | 1 |
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PPL Electric Utilities Corp [Member] |
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
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Allocation of Net Periodic Benefit Costs |
For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU: | | | | | | | | | | Three Months | | 2020 | | 2019 | PPL Electric | $ | 3 |
| | $ | 3 |
| LG&E (a) | 3 |
| | 1 |
| KU | 1 |
| | — |
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(a) Allocations to LG&E increased in 2020 primarily due to the merger of plans sponsored by LKE and LG&E effective January 1, 2020 into the LG&E and KU Pension Plan.
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LG And E And KU Energy LLC [Member] |
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
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Schedule Of Net Periodic Defined Benefit Costs (Credits) |
| | | | | | | | | | Pension Benefits | | Three Months | | 2020 | | 2019 | LKE | | | | Service cost | $ | 5 |
| | $ | 6 |
| Interest cost | 16 |
| | 16 |
| Expected return on plan assets | (24 | ) | | (25 | ) | Amortization of: | | | | Prior service cost | 2 |
| | 2 |
| Actuarial loss (a) | 9 |
| | 4 |
| Net periodic defined benefit costs | $ | 8 |
| | $ | 3 |
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| | (a) | As a result of treatment approved by the KPSC, the difference between actuarial loss calculated in accordance with LKE's accounting policy and actuarial loss calculated using a 15-year amortization period was $3 million for the three months ended March 31, 2020 and not significant for the three months ended March 31, 2019. This difference is recorded as a regulatory asset. |
| | | | | | | | | | Other Postretirement Benefits | | Three Months | | 2020 | | 2019 | PPL | | | | Service cost | $ | 2 |
| | $ | 1 |
| Interest cost | 5 |
| | 6 |
| Expected return on plan assets | (5 | ) | | (5 | ) | Net periodic defined benefit costs | $ | 2 |
| | $ | 2 |
| | | | | LKE | | | | Service cost | $ | 1 |
| | $ | 1 |
| Interest cost | 2 |
| | 2 |
| Expected return on plan assets | (2 | ) | | (2 | ) | Net periodic defined benefit costs | $ | 1 |
| | $ | 1 |
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Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL and its subsidiaries, LKE, and LG&E for the periods ended March 31:
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Louisville Gas And Electric Co [Member] |
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
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Schedule Of Net Periodic Defined Benefit Costs (Credits) |
| | | | | | Pension Benefits | | Three Months | | 2019 (a) | LG&E | | Interest cost | $ | 3 |
| Expected return on plan assets | (6 | ) | Amortization of: | | Prior service cost | 1 |
| Actuarial loss | 2 |
| Net periodic defined benefit costs | $ | — |
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| | (a) | The pension plans sponsored by LKE and LG&E were merged effective January 1, 2020 into the LG&E and KU Pension Plan, sponsored by LKE |
Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL and its subsidiaries, LKE, and LG&E for the periods ended March 31:
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Allocation of Net Periodic Benefit Costs |
For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU: | | | | | | | | | | Three Months | | 2020 | | 2019 | PPL Electric | $ | 3 |
| | $ | 3 |
| LG&E (a) | 3 |
| | 1 |
| KU | 1 |
| | — |
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(a) Allocations to LG&E increased in 2020 primarily due to the merger of plans sponsored by LKE and LG&E effective January 1, 2020 into the LG&E and KU Pension Plan.
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Kentucky Utilities Co [Member] |
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Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
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Allocation of Net Periodic Benefit Costs |
For the periods ended March 31, PPL Services allocated the following net periodic defined benefit costs to PPL Electric, and LKE allocated the following net periodic defined benefit costs to LG&E and KU: | | | | | | | | | | Three Months | | 2020 | | 2019 | PPL Electric | $ | 3 |
| | $ | 3 |
| LG&E (a) | 3 |
| | 1 |
| KU | 1 |
| | — |
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(a) Allocations to LG&E increased in 2020 primarily due to the merger of plans sponsored by LKE and LG&E effective January 1, 2020 into the LG&E and KU Pension Plan.
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