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v3.25.1

Revenue from Contracts with Customers (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | $ 2,504 | $ 2,304
Alternative Revenue Programs | 50 | 7
Other Revenue | (9) | (8)
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (2,545) | (2,303)
Contract with Customer, Asset and Liability [Abstract] |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 25 | 42
Energy purchases | 559 | 520
Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (1,385) | (1,130)
Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (583) | (451)
Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (185) | (177)
Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (74) | (272)
Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (7) | (6)
Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (38) | (15)
Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (273) | (252)
Pennsylvania Regulated [Member] |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 819 | 770
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (812) | (762)
Contract with Customer, Asset and Liability [Abstract] |  |
Energy purchases | 229 | 214
Pennsylvania Regulated [Member] | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (457) | (426)
Pennsylvania Regulated [Member] | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (106) | (106)
Pennsylvania Regulated [Member] | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (13) | (12)
Pennsylvania Regulated [Member] | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (13) | (13)
Pennsylvania Regulated [Member] | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Pennsylvania Regulated [Member] | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Pennsylvania Regulated [Member] | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (223) | (205)
Kentucky Regulated [Member] |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 1,059 | 984
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (1,062) | (989)
Contract with Customer, Asset and Liability [Abstract] |  |
Energy purchases | 96 | 77
Kentucky Regulated [Member] | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (487) | (443)
Kentucky Regulated [Member] | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (280) | (267)
Kentucky Regulated [Member] | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (154) | (161)
Kentucky Regulated [Member] | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (96) | (97)
Kentucky Regulated [Member] | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (7) | (6)
Kentucky Regulated [Member] | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (38) | (15)
Kentucky Regulated [Member] | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Corporate and Other [Member] |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 0 | 1
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | (1)
Corporate and Other [Member] | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 0
Corporate and Other [Member] | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 0
Corporate and Other [Member] | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 0
Corporate and Other [Member] | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | (1)
Corporate and Other [Member] | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 0
Corporate and Other [Member] | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 0
Corporate and Other [Member] | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 0
Rhode Island Regulated |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 626 | 549
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (671) | (551)
Contract with Customer, Asset and Liability [Abstract] |  |
Energy purchases | 235 | 229
Rhode Island Regulated | Net metering |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers |  | 32
Contract with Customer, Asset and Liability [Abstract] |  |
Energy purchases | 41 |
Rhode Island Regulated | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (441) | (261)
Rhode Island Regulated | Residential [Member] | Reclassification, Other |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (155) |
Rhode Island Regulated | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (197) | (78)
Rhode Island Regulated | Commercial [Member] | Reclassification, Other |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (89) |
Rhode Island Regulated | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (18) | (4)
Rhode Island Regulated | Industrial [Member] | Reclassification, Other |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (13) |
Rhode Island Regulated | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 35 | (161)
Rhode Island Regulated | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Rhode Island Regulated | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Rhode Island Regulated | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (50) | (47)
PPL Electric Utilities Corp [Member] |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 819 | 770
Alternative Revenue Programs | (2) | (3)
Other Revenue | (5) | (5)
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (812) | (762)
Contract with Customer, Asset and Liability [Abstract] |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 7 | 28
Energy purchases | 229 | 214
PPL Electric Utilities Corp [Member] | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (457) | (426)
PPL Electric Utilities Corp [Member] | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (106) | (106)
PPL Electric Utilities Corp [Member] | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (13) | (12)
PPL Electric Utilities Corp [Member] | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (13) | (13)
PPL Electric Utilities Corp [Member] | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
PPL Electric Utilities Corp [Member] | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
PPL Electric Utilities Corp [Member] | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (223) | (205)
Louisville Gas And Electric Co [Member] |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 505 | 476
Alternative Revenue Programs | 2 | 2
Other Revenue | (1) | (1)
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (506) | (477)
Contract with Customer, Asset and Liability [Abstract] |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 2 | 1
Energy purchases | 88 | 71
Louisville Gas And Electric Co [Member] | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (239) | (218)
Louisville Gas And Electric Co [Member] | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (147) | (138)
Louisville Gas And Electric Co [Member] | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (46) | (47)
Louisville Gas And Electric Co [Member] | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (54) | (52)
Louisville Gas And Electric Co [Member] | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Louisville Gas And Electric Co [Member] | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (20) | (22)
Louisville Gas And Electric Co [Member] | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | 0 | 0
Kentucky Utilities Co [Member] |  |
Reconciliation of Revenue from Contracts with Customers [Abstract] |  |
Operating Revenues | 564 | 525
Alternative Revenue Programs | 4 | 5
Other Revenue | (2) | (1)
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (566) | (529)
Contract with Customer, Asset and Liability [Abstract] |  |
Accounts Receivable, Credit Loss Expense (Reversal) | 1 | 1
Energy purchases | 7 | 6
Kentucky Utilities Co [Member] | Residential [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (248) | (225)
Kentucky Utilities Co [Member] | Commercial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (133) | (129)
Kentucky Utilities Co [Member] | Industrial [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (108) | (114)
Kentucky Utilities Co [Member] | Other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (42) | (46)
Kentucky Utilities Co [Member] | Wholesale - municipal [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (7) | (6)
Kentucky Utilities Co [Member] | Wholesale - other [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | (28) | (9)
Kentucky Utilities Co [Member] | Transmission [Member] |  |
Disaggregation of Revenue [Abstract] |  |
Revenues from Contracts with Customers | $ 0 | $ 0

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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-4 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 220 -SubTopic 40 -Name Accounting Standards Codification -Section 55 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147476153/220-40-55-14 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 41 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-41 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-42 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-7 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 270 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482964/270-10-50-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (ee) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 8: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 9: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 32 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-32 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 924 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479941/924-10-S99-1 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-5 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 30 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-30 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 40 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-40 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482810/280-10-50-22 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 606 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479806/606-10-50-4 + Details
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