Revenue from Contracts with Customers (Details) - USD ($)
$ in Millions |
3 Months Ended |
6 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
$ 2,111
|
$ 2,025
|
$ 4,885
|
$ 4,529
|
| Alternative Revenue Programs |
31
|
20
|
52
|
70
|
| Other Revenue |
(4)
|
(5)
|
(15)
|
(13)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(2,138)
|
(2,040)
|
(4,922)
|
(4,586)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
3
|
14
|
39
|
42
|
| Energy purchases |
403
|
388
|
1,106
|
947
|
| Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(936)
|
(887)
|
(2,413)
|
(2,272)
|
| Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(544)
|
(513)
|
(1,176)
|
(1,096)
|
| Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(202)
|
(191)
|
(408)
|
(376)
|
| Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(127)
|
(146)
|
(242)
|
(221)
|
| Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(4)
|
(5)
|
(11)
|
(12)
|
| Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(18)
|
(24)
|
(63)
|
(62)
|
| Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(307)
|
(274)
|
(609)
|
(547)
|
| Pennsylvania Regulated [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
744
|
693
|
1,715
|
1,512
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(764)
|
(700)
|
(1,731)
|
(1,512)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Energy purchases |
213
|
169
|
544
|
398
|
| Pennsylvania Regulated [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(363)
|
(345)
|
(925)
|
(802)
|
| Pennsylvania Regulated [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(116)
|
(106)
|
(246)
|
(212)
|
| Pennsylvania Regulated [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(13)
|
(13)
|
(29)
|
(26)
|
| Pennsylvania Regulated [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(20)
|
(13)
|
(32)
|
(26)
|
| Pennsylvania Regulated [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
0
|
| Pennsylvania Regulated [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
0
|
| Pennsylvania Regulated [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(252)
|
(223)
|
(499)
|
(446)
|
| Kentucky Regulated [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
888
|
837
|
2,095
|
1,896
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(887)
|
(833)
|
(2,088)
|
(1,179)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Energy purchases |
25
|
30
|
151
|
126
|
| Kentucky Regulated [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(350)
|
(328)
|
(903)
|
(655)
|
| Kentucky Regulated [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(270)
|
(247)
|
(583)
|
(357)
|
| Kentucky Regulated [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(166)
|
(158)
|
(337)
|
(38)
|
| Kentucky Regulated [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(79)
|
(71)
|
(191)
|
(28)
|
| Kentucky Regulated [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(4)
|
(5)
|
(11)
|
0
|
| Kentucky Regulated [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(18)
|
(24)
|
(63)
|
0
|
| Kentucky Regulated [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
(101)
|
| Corporate and Other [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
0
|
1
|
0
|
1
|
| Rhode Island Regulated |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
479
|
494
|
1,075
|
1,120
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(487)
|
(507)
|
(1,103)
|
(1,895)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Energy purchases |
164
|
190
|
411
|
425
|
| Rhode Island Regulated | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(223)
|
(214)
|
(585)
|
(815)
|
| Rhode Island Regulated | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(158)
|
(160)
|
(347)
|
(527)
|
| Rhode Island Regulated | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(23)
|
(20)
|
(42)
|
(312)
|
| Rhode Island Regulated | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(28)
|
(62)
|
(19)
|
(167)
|
| Rhode Island Regulated | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
(12)
|
| Rhode Island Regulated | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
(62)
|
| Rhode Island Regulated | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(55)
|
(51)
|
(110)
|
0
|
| PPL Electric Utilities Corp [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
744
|
693
|
1,715
|
1,512
|
| Alternative Revenue Programs |
24
|
11
|
26
|
9
|
| Other Revenue |
(4)
|
(4)
|
(10)
|
(9)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(764)
|
(700)
|
(1,731)
|
(1,512)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
2
|
2
|
10
|
9
|
| Energy purchases |
213
|
169
|
544
|
398
|
| PPL Electric Utilities Corp [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(363)
|
(345)
|
(925)
|
(802)
|
| PPL Electric Utilities Corp [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(116)
|
(106)
|
(246)
|
(212)
|
| PPL Electric Utilities Corp [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(13)
|
(13)
|
(29)
|
(26)
|
| PPL Electric Utilities Corp [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(20)
|
(13)
|
(32)
|
(26)
|
| PPL Electric Utilities Corp [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
0
|
| PPL Electric Utilities Corp [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
0
|
| PPL Electric Utilities Corp [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(252)
|
(223)
|
(499)
|
(446)
|
| Louisville Gas And Electric Co [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
398
|
378
|
995
|
883
|
| Alternative Revenue Programs |
2
|
(1)
|
(1)
|
1
|
| Other Revenue |
0
|
(1)
|
(2)
|
(2)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(400)
|
(376)
|
(992)
|
(882)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
0
|
0
|
1
|
2
|
| Energy purchases |
20
|
23
|
139
|
111
|
| Louisville Gas And Electric Co [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(181)
|
(167)
|
(457)
|
(406)
|
| Louisville Gas And Electric Co [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(134)
|
(122)
|
(299)
|
(269)
|
| Louisville Gas And Electric Co [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(49)
|
(48)
|
(99)
|
(94)
|
| Louisville Gas And Electric Co [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(31)
|
(28)
|
(100)
|
(82)
|
| Louisville Gas And Electric Co [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
0
|
| Louisville Gas And Electric Co [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(5)
|
(11)
|
(37)
|
(31)
|
| Louisville Gas And Electric Co [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
0
|
| Kentucky Utilities Co [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
505
|
472
|
1,130
|
1,036
|
| Alternative Revenue Programs |
(2)
|
(3)
|
(1)
|
1
|
| Other Revenue |
0
|
0
|
(2)
|
(2)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(503)
|
(469)
|
(1,127)
|
(1,035)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
(2)
|
1
|
2
|
2
|
| Energy purchases |
7
|
7
|
13
|
14
|
| Kentucky Utilities Co [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(169)
|
(161)
|
(446)
|
(409)
|
| Kentucky Utilities Co [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(136)
|
(125)
|
(284)
|
(258)
|
| Kentucky Utilities Co [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(117)
|
(110)
|
(238)
|
(218)
|
| Kentucky Utilities Co [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(49)
|
(43)
|
(92)
|
(85)
|
| Kentucky Utilities Co [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(4)
|
(5)
|
(11)
|
(12)
|
| Kentucky Utilities Co [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(28)
|
(25)
|
(56)
|
(53)
|
| Kentucky Utilities Co [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
$ 0
|
$ 0
|
$ 0
|
$ 0
|