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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Cash Flows from Operating Activities |  |  |  |
Net income (loss) |  | $ 414 |  | $ 307
Income from continuing operations (net of income taxes) |  | 414 |  |
Depreciation |  | 322 |  | 316
Amortization |  | 20 |  | 24
Defined benefit plans - (income) expense |  | (16) |  | (15)
Deferred income taxes and investment tax credits |  | 38 |  | 72
Other |  | 13 |  | 3
Change in current assets and current liabilities |  |  |  |
Accounts receivable |  | (277) |  | (75)
Accounts payable |  | (120) |  | (221)
Unbilled revenues |  | 108 |  | 57
Fuel, materials and supplies |  | 37 |  | 33
Prepayments |  | (87) |  | (108)
Taxes payable |  | 40 |  | (47)
Regulatory assets and liabilities, net |  | 79 |  | (61)
Accrued interest |  | 67 |  | 90
Other |  | (80) |  | (103)
Other operating activities |  |  |  |
Defined benefit plans - funding |  | (5) |  | (5)
Other assets |  | (50) |  | (1)
Other liabilities |  | 10 |  | 16
Net cash provided by operating activities |  | 513 |  | 282
Cash Flows from Investing Activities |  |  |  |
Expenditures for property, plant and equipment |  | (793) |  | (596)
Other investing activities |  | 10 |  | 5
Net cash used in investing activities |  | (783) |  | (591)
Cash Flows from Financing Activities |  |  |  |
Issuance of long-term debt |  | 0 |  | 1,148
Payment of common stock dividends |  | (190) |  | (177)
Net increase (decrease) in short-term debt |  | 475 |  | (701)
Other financing activities |  | (14) |  | (22)
Net cash provided by financing activities |  | 271 |  | 248
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash |  | 1 |  | (61)
Cash and Cash Equivalents at Beginning of Period |  | 306 |  |
Cash, Cash Equivalents and Restricted Cash at Beginning of Period |  | 339 |  | 382
Cash and Cash Equivalents at End of Period |  | 312 |  |
Cash, Cash Equivalents and Restricted Cash at End of Period |  | 340 |  | 321
Supplemental Disclosures of Cash Flow Information |  |  |  |
Accrued expenditures for property, plant and equipment at March 31, |  | 397 |  | 253
PPL Electric Utilities Corp [Member] |  |  |  |
Cash Flows from Operating Activities |  |  |  |
Net income (loss) | [1] | 184 |  | 149
Depreciation |  | 102 |  | 99
Amortization |  | 11 |  | 12
Defined benefit plans - (income) expense |  | (7) |  | (11)
Deferred income taxes and investment tax credits |  | 20 |  | 32
Other |  | (5) |  | (7)
Change in current assets and current liabilities |  |  |  |
Accounts receivable |  | (132) |  | (33)
Accounts payable |  | (7) |  | (59)
Unbilled revenues |  | 43 |  | 30
Fuel, materials and supplies |  | (8) |  | (4)
Prepayments |  | (90) |  | (110)
Taxes payable |  | (2) |  | (48)
Regulatory assets and liabilities, net |  | 36 |  | (28)
Accrued interest |  | 19 |  | 35
Other |  | (13) |  | (26)
Other operating activities |  |  |  |
Other assets |  | (18) |  | 0
Other liabilities |  | 1 |  | (3)
Net cash provided by operating activities |  | 134 |  | 28
Cash Flows from Investing Activities |  |  |  |
Expenditures for property, plant and equipment |  | (328) |  | (229)
Expenditures for intangible assets |  | (1) |  | (1)
Notes receivable from affiliates |  | 222 |  | (554)
Other investing activities |  | 10 |  | 4
Net cash used in investing activities |  | (97) |  | (780)
Cash Flows from Financing Activities |  |  |  |
Issuance of long-term debt |  | 0 |  | 649
Payment of common stock dividends to parent |  | (88) |  | (88)
Net increase (decrease) in short-term debt |  | 55 |  | (509)
Contributions from parent |  | 0 |  | 675
Debt Issuance Costs |  | (1) |  | (5)
Net cash provided by financing activities |  | (34) |  | 722
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash |  | 3 |  | (30)
Cash and Cash Equivalents at Beginning of Period |  | 24 |  |
Cash, Cash Equivalents and Restricted Cash at Beginning of Period |  | 24 |  | 51
Cash and Cash Equivalents at End of Period |  | 27 |  |
Cash, Cash Equivalents and Restricted Cash at End of Period |  | 27 |  | 21
Supplemental Disclosures of Cash Flow Information |  |  |  |
Accrued expenditures for property, plant and equipment at March 31, |  | 185 |  | 146
Louisville Gas And Electric Co [Member] |  |  |  |
Cash Flows from Operating Activities |  |  |  |
Net income (loss) |  | 105 | [2] | 93
Depreciation |  | 74 |  | 76
Amortization |  | 4 |  | 3
Deferred income taxes and investment tax credits |  | 1 |  | 2
Other |  | 0 |  | 1
Change in current assets and current liabilities |  |  |  |
Accounts receivable |  | (11) |  | (19)
Accounts receivable from affiliates |  | 12 |  | (11)
Accounts payable |  | 23 |  | 6
Increase (Decrease) in Accounts Payable, Related Parties |  | 26 |  | 34
Unbilled revenues |  | 19 |  | 16
Fuel, materials and supplies |  | 23 |  | 13
Taxes payable |  | (23) |  | (26)
Regulatory assets and liabilities, net |  | (21) |  | (21)
Accrued interest |  | 23 |  | 23
Other |  | (19) |  | (19)
Other operating activities |  |  |  |
Expenditures for asset retirement obligations |  | (2) |  | (2)
Other assets |  | (32) |  | 0
Other liabilities |  | (3) |  | (3)
Net cash provided by operating activities |  | 199 |  | 166
Cash Flows from Investing Activities |  |  |  |
Expenditures for property, plant and equipment |  | (117) |  | (92)
Notes receivable from affiliates |  | (5) |  | (28)
Net cash used in investing activities |  | (122) |  | (120)
Cash Flows from Financing Activities |  |  |  |
Increase Decrease In Notes Payable To Affiliates |  | (43) |  | 0
Payment of common stock dividends to parent |  | (43) |  | (37)
Net increase (decrease) in short-term debt |  | 64 |  | 28
Return of capital to parent |  | (55) |  | (51)
Debt Issuance Costs |  | (1) |  | 0
Net cash provided by financing activities |  | (78) |  | (60)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash |  | (1) |  | (14)
Cash and Cash Equivalents at Beginning of Period |  | 8 |  |
Cash, Cash Equivalents and Restricted Cash at Beginning of Period |  | 24 |  | 44
Cash and Cash Equivalents at End of Period |  | 10 |  |
Cash, Cash Equivalents and Restricted Cash at End of Period |  | 23 |  | 30
Supplemental Disclosures of Cash Flow Information |  |  |  |
Accrued expenditures for property, plant and equipment at March 31, |  | 72 |  | 35
Kentucky Utilities Co [Member] |  |  |  |
Cash Flows from Operating Activities |  |  |  |
Net income (loss) | [3] | 125 |  | 108
Depreciation |  | 102 |  | 99
Amortization |  | 4 |  | 5
Deferred income taxes and investment tax credits |  | 3 |  | (1)
Other |  | (3) |  | (2)
Change in current assets and current liabilities |  |  |  |
Accounts receivable |  | (29) |  | (21)
Accounts payable |  | (3) |  | (13)
Increase (Decrease) in Accounts Payable, Related Parties |  | 29 |  | 52
Unbilled revenues |  | 18 |  | 6
Fuel, materials and supplies |  | 7 |  | 8
Taxes payable |  | (18) |  | (17)
Regulatory assets and liabilities, net |  | 5 |  | 1
Accrued interest |  | 32 |  | 32
Other |  | (3) |  | (7)
Other operating activities |  |  |  |
Expenditures for asset retirement obligations |  | (2) |  | (2)
Other assets |  | (9) |  | 8
Other liabilities |  | (5) |  | (4)
Net cash provided by operating activities |  | 253 |  | 252
Cash Flows from Investing Activities |  |  |  |
Expenditures for property, plant and equipment |  | (174) |  | (148)
Other investing activities |  | 0 |  | 0
Net cash used in investing activities |  | (174) |  | (148)
Cash Flows from Financing Activities |  |  |  |
Increase Decrease In Notes Payable To Affiliates |  | (65) |  | 37
Payment of common stock dividends to parent |  | (46) |  | (47)
Net increase (decrease) in short-term debt |  | 68 |  | (48)
Return of capital to parent |  | (37) |  | (50)
Debt Issuance Costs |  | (1) |  | 0
Net cash provided by financing activities |  | (81) |  | (108)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash |  | (2) |  | (4)
Cash and Cash Equivalents at Beginning of Period |  | 13 |  |
Cash, Cash Equivalents and Restricted Cash at Beginning of Period |  | 29 |  | 38
Cash and Cash Equivalents at End of Period |  | 14 |  |
Cash, Cash Equivalents and Restricted Cash at End of Period |  | 27 |  | 34
Supplemental Disclosures of Cash Flow Information |  |  |  |
Accrued expenditures for property, plant and equipment at March 31, |  | $ 74 |  | $ 44
[1] | Net income equals comprehensive income.
[2] | Net income equals comprehensive income.
[3] | Net income equals comprehensive income.

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-13 + Details
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- Definition Amount of cash outflow for pension and other postretirement benefits. Includes, but is not limited to, employer contribution to fund plan asset and payment to retiree. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 25 -Subparagraph (g) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-25 + Details
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- Definition Amount of noncash expense (reversal of expense) for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Definition The cash inflow from parent as a source of financing that is recorded as additional paid in capital. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 + Details
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- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(1)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479886/946-10-S99-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 + Details
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- Definition Amount of cash inflow (outflow) from financing activity, classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 45 -Paragraph 15 -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 + Details
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- Definition The net cash inflow or outflow for borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References No definition available. + Details
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- Definition The cash inflow from a borrowing net of the cash outflow from repayment of a borrowing having initial term of repayment within three months. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-15 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 14 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-14 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 9 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-9 + Details
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