Revenue from Contracts with Customers (Details) - USD ($)
$ in Millions |
3 Months Ended |
9 Months Ended |
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
$ 2,497
|
$ 2,239
|
$ 7,382
|
$ 6,768
|
| Alternative Revenue Programs |
(11)
|
6
|
40
|
75
|
| Other Revenue |
(7)
|
(8)
|
(21)
|
(20)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(2,479)
|
(2,237)
|
(7,401)
|
(6,823)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
31
|
30
|
71
|
72
|
| Energy purchases |
486
|
422
|
1,592
|
1,369
|
| Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(1,217)
|
(1,055)
|
(3,631)
|
(3,327)
|
| Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(595)
|
(555)
|
(1,771)
|
(1,652)
|
| Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(208)
|
(201)
|
(616)
|
(577)
|
| Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(107)
|
(98)
|
(348)
|
(319)
|
| Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(8)
|
(7)
|
(19)
|
(19)
|
| Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(28)
|
(26)
|
(91)
|
(88)
|
| Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(316)
|
(295)
|
(925)
|
(841)
|
| Pennsylvania Regulated [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
918
|
786
|
2,633
|
2,298
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(921)
|
(782)
|
(2,652)
|
(2,294)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Energy purchases |
274
|
224
|
818
|
622
|
| Pennsylvania Regulated [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(492)
|
(403)
|
(1,417)
|
(1,205)
|
| Pennsylvania Regulated [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(142)
|
(119)
|
(388)
|
(331)
|
| Pennsylvania Regulated [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(16)
|
(16)
|
(45)
|
(42)
|
| Pennsylvania Regulated [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(16)
|
(15)
|
(48)
|
(41)
|
| 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 |
(255)
|
(229)
|
(754)
|
(675)
|
| Kentucky Regulated [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
1,048
|
944
|
3,144
|
2,841
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(1,051)
|
(941)
|
(3,139)
|
(1,693)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Energy purchases |
21
|
23
|
173
|
149
|
| Kentucky Regulated [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(456)
|
(394)
|
(1,359)
|
(913)
|
| Kentucky Regulated [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(301)
|
(278)
|
(884)
|
(516)
|
| Kentucky Regulated [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(171)
|
(162)
|
(508)
|
(61)
|
| Kentucky Regulated [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(87)
|
(74)
|
(278)
|
(37)
|
| Kentucky Regulated [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(8)
|
(7)
|
(19)
|
0
|
| Kentucky Regulated [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(28)
|
(26)
|
(91)
|
0
|
| Kentucky Regulated [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
(166)
|
| Corporate and Other [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
1
|
0
|
0
|
0
|
| Rhode Island Regulated |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
530
|
509
|
1,605
|
1,629
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(507)
|
(514)
|
(1,610)
|
(2,836)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Energy purchases |
191
|
173
|
602
|
598
|
| Rhode Island Regulated | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(269)
|
(258)
|
(855)
|
(1,209)
|
| Rhode Island Regulated | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(152)
|
(158)
|
(499)
|
(805)
|
| Rhode Island Regulated | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(21)
|
(23)
|
(63)
|
(474)
|
| Rhode Island Regulated | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(4)
|
(9)
|
(22)
|
(241)
|
| Rhode Island Regulated | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
(19)
|
| Rhode Island Regulated | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
0
|
0
|
0
|
(88)
|
| Rhode Island Regulated | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(61)
|
(66)
|
(171)
|
0
|
| PPL Electric Utilities Corp [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
918
|
786
|
2,633
|
2,298
|
| Alternative Revenue Programs |
8
|
0
|
34
|
9
|
| Other Revenue |
(5)
|
(4)
|
(15)
|
(13)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(921)
|
(782)
|
(2,652)
|
(2,294)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
20
|
11
|
30
|
20
|
| Energy purchases |
274
|
224
|
818
|
622
|
| PPL Electric Utilities Corp [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(492)
|
(403)
|
(1,417)
|
(1,205)
|
| PPL Electric Utilities Corp [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(142)
|
(119)
|
(388)
|
(331)
|
| PPL Electric Utilities Corp [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(16)
|
(16)
|
(45)
|
(42)
|
| PPL Electric Utilities Corp [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(16)
|
(15)
|
(48)
|
(41)
|
| 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 |
(255)
|
(229)
|
(754)
|
(675)
|
| Louisville Gas And Electric Co [Member] |
|
|
|
|
| Reconciliation of Revenue from Contracts with Customers [Abstract] |
|
|
|
|
| Operating Revenues |
470
|
427
|
1,465
|
1,310
|
| Alternative Revenue Programs |
2
|
(2)
|
1
|
(1)
|
| Other Revenue |
(2)
|
(1)
|
(4)
|
(3)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(470)
|
(424)
|
(1,462)
|
(1,306)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
2
|
1
|
3
|
3
|
| Energy purchases |
16
|
17
|
155
|
128
|
| Louisville Gas And Electric Co [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(229)
|
(195)
|
(686)
|
(601)
|
| Louisville Gas And Electric Co [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(147)
|
(137)
|
(446)
|
(406)
|
| Louisville Gas And Electric Co [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(51)
|
(49)
|
(150)
|
(143)
|
| Louisville Gas And Electric Co [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(33)
|
(29)
|
(133)
|
(111)
|
| 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 |
(10)
|
(14)
|
(47)
|
(45)
|
| 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 |
590
|
530
|
1,720
|
1,566
|
| Alternative Revenue Programs |
2
|
2
|
1
|
3
|
| Other Revenue |
(2)
|
(1)
|
(4)
|
(3)
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(590)
|
(531)
|
(1,717)
|
(1,566)
|
| Contract with Customer, Asset and Liability [Abstract] |
|
|
|
|
| Accounts Receivable, Credit Loss Expense (Reversal) |
1
|
2
|
3
|
4
|
| Energy purchases |
5
|
6
|
18
|
20
|
| Kentucky Utilities Co [Member] | Residential [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(227)
|
(199)
|
(673)
|
(608)
|
| Kentucky Utilities Co [Member] | Commercial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(154)
|
(141)
|
(438)
|
(399)
|
| Kentucky Utilities Co [Member] | Industrial [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(120)
|
(113)
|
(358)
|
(331)
|
| Kentucky Utilities Co [Member] | Other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(52)
|
(46)
|
(144)
|
(131)
|
| Kentucky Utilities Co [Member] | Wholesale - municipal [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(8)
|
(7)
|
(19)
|
(19)
|
| Kentucky Utilities Co [Member] | Wholesale - other [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
(29)
|
(25)
|
(85)
|
(78)
|
| Kentucky Utilities Co [Member] | Transmission [Member] |
|
|
|
|
| Disaggregation of Revenue [Abstract] |
|
|
|
|
| Revenues from Contracts with Customers |
$ 0
|
$ 0
|
$ 0
|
$ 0
|