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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets, Current [Abstract] |  |  |
Cash and cash equivalents |  | $ 276 | $ 331
Accounts receivable (less reserve:) |  |  |
Customer |  | 999 | 950
Other |  | 271 | 271
Unbilled revenues |  | 371 | 428
Fuel, materials and supplies |  | 477 | 505
Prepayments |  | 212 | 103
Regulatory Assets, Current |  | 330 | 293
Other current assets |  | 101 | 51
Total Current Assets |  | 3,037 | 2,932
Property, Plant and Equipment |  |  |
Regulated utility plant |  | 39,031 | 38,608
Less: accumulated depreciation - regulated utility plant |  | 9,327 | 9,156
Regulated utility plant, net |  | 29,704 | 29,452
Non-regulated property, plant and equipment |  | 71 | 72
Less: accumulated depreciation - non-regulated property, plant and equipment |  | 24 | 23
Non-regulated property, plant and equipment, net |  | 47 | 49
Construction work in progress |  | 1,996 | 1,917
Property, Plant and Equipment, net |  | 31,747 | 31,418
Other Noncurrent Assets |  |  |
Regulatory assets |  | 1,859 | 1,874
Goodwill |  | 2,247 | 2,247
Other intangibles |  | 304 | 306
Other noncurrent assets |  | 437 | 459
Assets, Noncurrent |  | 4,847 | 4,886
Total Assets |  | 39,631 | 39,236
Current Liabilities |  |  |
Short-term debt |  | 291 | 992
Long-term debt due within one year |  | 1 | 1
Accounts payable |  | 903 | 1,104
Taxes |  | 83 | 130
Interest |  | 214 | 124
Dividends |  | 186 | 173
Regulatory liabilities |  | 223 | 225
Other current liabilities |  | 474 | 591
Liabilities, Current, Total |  | 2,375 | 3,340
Long-term Debt, Unclassified [Abstract] |  |  |
Long-term Debt |  | 15,753 | 14,611
Deferred Credits and Other Noncurrent Liabilities |  |  |
Deferred income taxes |  | 3,195 | 3,105
Investment tax credits |  | 113 | 114
Accrued pension obligations |  | 255 | 275
Asset retirement obligations |  | 127 | 133
Regulatory liabilities |  | 3,351 | 3,340
Other deferred credits and noncurrent liabilities |  | 404 | 385
Total Deferred Credits and Other Noncurrent Liabilities |  | 7,445 | 7,352
Commitments and Contingent Liabilities |  |  |
Equity |  |  |
Common stock | [1] | 8 | 8
Additional paid-in capital |  | 12,314 | 12,326
Treasury Stock |  | (931) | (948)
Earnings reinvested |  | 2,828 | 2,710
Accumulated other comprehensive loss |  | (161) | (163)
Total Equity |  | 14,058 | 13,933
Total Liabilities and Equity |  | 39,631 | 39,236
PPL Electric Utilities Corp [Member] |  |  |
Assets, Current [Abstract] |  |  |
Cash and cash equivalents |  | 21 | 51
Accounts receivable (less reserve:) |  |  |
Other |  | 10 | 8
Unbilled revenues |  | 119 | 149
Notes Receivable from affiliates |  | 554 | 0
Fuel, materials and supplies |  | 103 | 99
Prepayments |  | 155 | 44
Regulatory Assets, Current |  | 84 | 57
Other current assets |  | 33 | 17
Total Current Assets |  | 1,539 | 869
Property, Plant and Equipment |  |  |
Regulated utility plant |  | 15,740 | 15,575
Less: accumulated depreciation - regulated utility plant |  | 3,889 | 3,822
Regulated utility plant, net |  | 11,851 | 11,753
Construction work in progress |  | 744 | 680
Property, Plant and Equipment, net |  | 12,595 | 12,433
Other Noncurrent Assets |  |  |
Regulatory assets |  | 592 | 598
Other intangibles |  | 269 | 269
Other noncurrent assets |  | 121 | 125
Assets, Noncurrent |  | 982 | 992
Total Assets |  | 15,116 | 14,294
Current Liabilities |  |  |
Short-term debt |  | 0 | 509
Taxes |  | 3 | 51
Interest |  | 78 | 43
Regulatory liabilities |  | 90 | 91
Other current liabilities |  | 82 | 100
Liabilities, Current, Total |  | 709 | 1,292
Long-term Debt, Unclassified [Abstract] |  |  |
Long-term Debt |  | 5,211 | 4,567
Deferred Credits and Other Noncurrent Liabilities |  |  |
Deferred income taxes |  | 1,608 | 1,573
Regulatory liabilities |  | 839 | 836
Other deferred credits and noncurrent liabilities |  | 110 | 123
Total Deferred Credits and Other Noncurrent Liabilities |  | 2,557 | 2,532
Commitments and Contingent Liabilities |  |  |
Equity |  |  |
Common stock | [2] | 364 | 364
Additional paid-in capital |  | 4,715 | 4,040
Earnings reinvested |  | 1,560 | 1,499
Total Equity |  | 6,639 | 5,903
Total Liabilities and Equity |  | $ 15,116 | $ 14,294
Financing Receivable, after Allowance for Credit Loss, Related Party, Type [Extensible Enumeration] |  | CEP Reserves, Inc | CEP Reserves, Inc
PPL Electric Utilities Corp [Member] | Related Party |  |  |
Accounts receivable (less reserve:) |  |  |
Customer |  | $ 10 | $ 10
Notes Receivable from affiliates |  | 554 | 0
Current Liabilities |  |  |
Accounts payable |  | 52 | 44
PPL Electric Utilities Corp [Member] | Nonrelated Party |  |  |
Accounts receivable (less reserve:) |  |  |
Customer |  | 450 | 434
Current Liabilities |  |  |
Accounts payable |  | 404 | 454
Louisville Gas And Electric Co [Member] |  |  |
Assets, Current [Abstract] |  |  |
Cash and cash equivalents |  | 8 | 18
Accounts receivable (less reserve:) |  |  |
Other |  | 24 | 17
Unbilled revenues |  | 72 | 88
Fuel, materials and supplies |  | 130 | 143
Prepayments |  | 11 | 11
Regulatory Assets, Current |  | 14 | 7
Other current assets |  | 6 | 0
Total Current Assets |  | 454 | 429
Property, Plant and Equipment |  |  |
Regulated utility plant |  | 7,715 | 7,669
Less: accumulated depreciation - regulated utility plant |  | 1,599 | 1,549
Regulated utility plant, net |  | 6,116 | 6,120
Construction work in progress |  | 342 | 312
Property, Plant and Equipment, net |  | 6,458 | 6,432
Other Noncurrent Assets |  |  |
Regulatory assets |  | 388 | 395
Goodwill |  | 389 | 389
Other intangibles |  | 17 | 18
Other noncurrent assets |  | 92 | 90
Assets, Noncurrent |  | 886 | 892
Total Assets |  | 7,798 | 7,753
Current Liabilities |  |  |
Short-term debt |  | 28 | 0
Taxes |  | 15 | 41
Price risk management liabilities current |  | 1 | 1
Interest |  | 44 | 21
Current Customer Deposits |  | 35 | 34
Regulatory liabilities |  | 2 | 16
Asset Retirement Obligation, Current |  | 13 | 13
Other current liabilities |  | 32 | 47
Liabilities, Current, Total |  | 374 | 337
Long-term Debt, Unclassified [Abstract] |  |  |
Long-term Debt |  | 2,469 | 2,469
Deferred Credits and Other Noncurrent Liabilities |  |  |
Deferred income taxes |  | 782 | 776
Investment tax credits |  | 30 | 31
Asset retirement obligations |  | 71 | 72
Regulatory liabilities |  | 824 | 827
Price risk management liabilities |  | 4 | 6
Other deferred credits and noncurrent liabilities |  | 67 | 63
Total Deferred Credits and Other Noncurrent Liabilities |  | 1,778 | 1,775
Commitments and Contingent Liabilities |  |  |
Equity |  |  |
Common stock | [3] | 424 | 424
Additional paid-in capital |  | 1,942 | 1,993
Earnings reinvested |  | 811 | 755
Total Equity |  | 3,177 | 3,172
Total Liabilities and Equity |  | 7,798 | 7,753
Louisville Gas And Electric Co [Member] | Related Party |  |  |
Accounts receivable (less reserve:) |  |  |
Customer |  | 40 | 29
Notes Receivable from affiliates |  | 28 | 0
Current Liabilities |  |  |
Accounts payable |  | 83 | 49
Louisville Gas And Electric Co [Member] | Nonrelated Party |  |  |
Accounts receivable (less reserve:) |  |  |
Customer |  | 121 | 116
Current Liabilities |  |  |
Accounts payable |  | 121 | 115
Kentucky Utilities Co [Member] |  |  |
Assets, Current [Abstract] |  |  |
Cash and cash equivalents |  | 12 | 14
Accounts receivable (less reserve:) |  |  |
Customer |  | 152 | 143
Other |  | 19 | 12
Unbilled revenues |  | 91 | 97
Fuel, materials and supplies |  | 177 | 185
Prepayments |  | 11 | 13
Regulatory Assets, Current |  | 7 | 3
Other current assets |  | 2 | 1
Total Current Assets |  | 471 | 468
Property, Plant and Equipment |  |  |
Regulated utility plant |  | 10,038 | 9,896
Less: accumulated depreciation - regulated utility plant |  | 2,547 | 2,476
Regulated utility plant, net |  | 7,491 | 7,420
Construction work in progress |  | 594 | 604
Property, Plant and Equipment, net |  | 8,085 | 8,024
Other Noncurrent Assets |  |  |
Regulatory assets |  | 435 | 439
Goodwill |  | 607 | 607
Other intangibles |  | 18 | 19
Other noncurrent assets |  | 157 | 157
Assets, Noncurrent |  | 1,217 | 1,222
Total Assets |  | 9,773 | 9,714
Current Liabilities |  |  |
Short-term debt |  | $ 45 | $ 93
Notes Payable, Related Party, Type [Extensible Enumeration] |  | Affiliated Entity [Member] | Affiliated Entity [Member]
Notes Payable to affiliates |  | $ 37 | $ 0
Taxes |  | 15 | 32
Interest |  | 56 | 24
Current Customer Deposits |  | 38 | 35
Regulatory liabilities |  | 6 | 1
Asset Retirement Obligation, Current |  | 16 | 13
Other current liabilities |  | 44 | 52
Liabilities, Current, Total |  | 450 | 402
Long-term Debt, Unclassified [Abstract] |  |  |
Long-term Debt |  | 3,064 | 3,064
Deferred Credits and Other Noncurrent Liabilities |  |  |
Deferred income taxes |  | 917 | 912
Investment tax credits |  | 83 | 83
Asset retirement obligations |  | 48 | 53
Regulatory liabilities |  | 1,016 | 1,018
Other deferred credits and noncurrent liabilities |  | 32 | 30
Total Deferred Credits and Other Noncurrent Liabilities |  | 2,096 | 2,096
Commitments and Contingent Liabilities |  |  |
Equity |  |  |
Common stock | [4] | 308 | 308
Additional paid-in capital |  | 2,983 | 3,033
Earnings reinvested |  | 872 | 811
Total Equity |  | 4,163 | 4,152
Total Liabilities and Equity |  | 9,773 | 9,714
Kentucky Utilities Co [Member] | Related Party |  |  |
Current Liabilities |  |  |
Accounts payable |  | 123 | 72
Kentucky Utilities Co [Member] | Nonrelated Party |  |  |
Current Liabilities |  |  |
Accounts payable |  | $ 70 | $ 80
[1] | 1,560,000 shares authorized, 770,013 shares issued and 737,736 shares outstanding at March 31, 2024. 1,560,000 shares authorized, 770,013 shares issued and 737,130 shares outstanding at December 31, 2023.
[2] | 170,000 shares authorized; 66,368 shares issued and outstanding at March 31, 2024 and December 31, 2023.
[3] | 75,000 shares authorized; 21,294 shares issued and outstanding at March 31, 2024 and December 31, 2023.
[4] | 80,000 shares authorized; 37,818 shares issued and outstanding at March 31, 2024 and December 31, 2023.

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