CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2023		Sep. 30, 2022
Cash Flows from Operating Activities
Net income (loss)		$ 627		$ 566
Depreciation		940		872
Amortization		61		30
Defined benefit plans - (income) expense		(55)		(12)
Deferred income taxes and investment tax credits		142		55
Stock-based compensation expense		22		23
Impairment of assets held for sale		0		67
Other		(23)		21
Change in current assets and current liabilities
Accounts receivable		(37)		(103)
Accounts payable		(129)		120
Unbilled revenues		224		42
Fuel, materials and supplies		(43)		(71)
Prepayments		(44)		(23)
Taxes payable		(15)		(14)
Regulatory assets and liabilities, net		(27)		(158)
Accrued interest		123		59
Other		(2)		52
Other operating activities
Defined benefit plans - funding		(14)		(8)
Other assets		(58)		(77)
Other liabilities		(44)		70
Net cash provided by operating activities		1,648		1,511
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(1,741)		(1,515)
Acquisition of Narragansett Electric, net of cash acquired		0		(3,674)
Other investing activities		2		3
Net cash used in investing activities		(1,739)		(5,186)
Cash Flows from Financing Activities
Issuance of long-term debt		3,127		850
Retirement of long-term debt		(1,763)		(263)
Payment of common stock dividends		(526)		(620)
Net increase (decrease) in short-term debt		(698)		441
Other financing activities		(52)		(1)
Net cash provided by financing activities		88		407
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		(3)		(3,268)
Cash and Cash Equivalents at Beginning of Period		356
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		357		3,572
Cash and Cash Equivalents at End of Period		353
Cash, Cash Equivalents and Restricted Cash at End of Period		354		304
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at September 30,		200		239
PPL Electric Utilities Corp [Member]
Cash Flows from Operating Activities
Net income (loss)	[1]	384		410
Depreciation		297		296
Amortization		31		10
Defined benefit plans - (income) expense		(32)		(17)
Deferred income taxes and investment tax credits		59		67
Other		(19)		(12)
Change in current assets and current liabilities
Accounts receivable		(104)		(73)
Accounts payable		(56)		(39)
Unbilled revenues		110		11
Fuel, materials and supplies		(33)		(22)
Prepayments		(22)		(12)
Taxes payable		(24)		(26)
Regulatory assets and liabilities, net		(41)		(57)
Accrued interest		50		10
Other		(5)		(25)
Other operating activities
Defined benefit plans - funding		(5)		0
Other assets		(2)		(15)
Other liabilities		1		(8)
Net cash provided by operating activities		589		498
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(653)		(621)
Expenditures for intangible assets		(4)		0
Notes receivable from affiliates		0		499
Other investing activities		2		2
Net cash used in investing activities		(655)		(120)
Cash Flows from Financing Activities
Issuance of long-term debt		1,329		250
Retirement of long-term debt		(1,150)		(250)
Payment of common stock dividends to parent		(235)		(246)
Net increase (decrease) in short-term debt		42		0
Contributions from parent		200		0
Return of capital to parent		(75)		(130)
Other financing activities		0		(1)
Debt Issuance Costs		(14)		0
Net cash provided by financing activities		97		(377)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		31		1
Cash and Cash Equivalents at Beginning of Period		25
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		25		21
Cash and Cash Equivalents at End of Period		56
Cash, Cash Equivalents and Restricted Cash at End of Period		56		22
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at September 30,		119		150
Louisville Gas And Electric Co [Member]
Cash Flows from Operating Activities
Net income (loss)		210	[2]	224
Depreciation		227		223
Amortization		9		(1)
Defined benefit plans - (income) expense		0		(1)
Deferred income taxes and investment tax credits		(3)		(3)
Other		(7)		3
Change in current assets and current liabilities
Accounts receivable		37		15
Accounts receivable from affiliates		17		5
Accounts payable		(51)		10
Increase (Decrease) in Accounts Payable, Related Parties		(9)		19
Unbilled revenues		43		11
Fuel, materials and supplies		25		(22)
Taxes payable		(4)		4
Regulatory assets and liabilities, net		34		(12)
Accrued interest		29		17
Other		(3)		(4)
Other operating activities
Defined benefit plans - funding		(1)		(2)
Expenditures for asset retirement obligations		(9)		(10)
Other assets		(19)		(3)
Other liabilities		1		0
Net cash provided by operating activities		526		473
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(277)		(273)
Net cash used in investing activities		(277)		(273)
Cash Flows from Financing Activities
Issuance of long-term debt		399		300
Retirement of long-term debt		(300)		0
Increase Decrease In Notes Payable To Affiliates		6		(310)
Payment of common stock dividends to parent		(115)		(224)
Net increase (decrease) in short-term debt		(179)		41
Contributions from parent		20		10
Return of capital to parent		(161)		0
Other financing activities		(4)		(1)
Net cash provided by financing activities		(334)		(184)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		(85)		16
Cash and Cash Equivalents at Beginning of Period		93		9
Cash and Cash Equivalents at End of Period		8		25
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at September 30,		30		36
Kentucky Utilities Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[3]	240		268
Depreciation		294		289
Amortization		14		12
Defined benefit plans - (income) expense		(4)		(3)
Deferred income taxes and investment tax credits		(7)		(2)
Other		0		3
Change in current assets and current liabilities
Accounts receivable		10		(17)
Accounts payable		(31)		7
Increase (Decrease) in Accounts Payable, Related Parties		(27)		22
Unbilled revenues		28		4
Fuel, materials and supplies		(8)		(17)
Taxes payable		8		15
Regulatory assets and liabilities, net		30		(20)
Accrued interest		37		26
Other		(2)		(5)
Other operating activities
Defined benefit plans - funding		(1)		(1)
Expenditures for asset retirement obligations		(17)		(23)
Other assets		(22)		1
Other liabilities		(2)		(3)
Net cash provided by operating activities		540		556
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(430)		(397)
Other investing activities		5		0
Net cash used in investing activities		(425)		(397)
Cash Flows from Financing Activities
Issuance of long-term debt		399		300
Retirement of long-term debt		(313)		0
Increase Decrease In Notes Payable To Affiliates		21		(272)
Payment of common stock dividends to parent		(125)		(234)
Net increase (decrease) in short-term debt		(76)		0
Contributions from parent		54		60
Return of capital to parent		(84)		0
Other financing activities		(4)		(1)
Net cash provided by financing activities		(128)		(147)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		(13)		12
Cash and Cash Equivalents at Beginning of Period		21		13
Cash and Cash Equivalents at End of Period		8		25
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at September 30,		$ 45		$ 46

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.