CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash Flows from Operating Activities
Net income (loss)		$ 740	$ 756	$ (1,480)
Loss (income) from discontinued operations (net of income taxes)		0	(42)	1,498
Income from Continuing Operations After Income Taxes		740	714	18
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		1,254	1,181	1,082
Amortization		81	52	39
Defined benefit plans - expense (income)		(73)	(16)	10
Deferred income taxes and investment tax credits		322	179	87
Loss on sale of Safari Holdings		0	60	0
Impairment of solar panels		0	0	37
Loss on Extinguishment of Debt		0	0	395
Stock compensation expense		33	37	37
Other		(29)	14	(27)
Change in current assets and current liabilities
Accounts receivable		(170)	(176)	(14)
Accounts payable		(72)	358	24
Unbilled Revenues		128	(197)	(5)
Fuel, materials and supplies		(60)	(90)	(21)
Taxes payable		6	(80)	27
Regulatory assets and liabilities, net		(37)	(119)	52
Other		39	(89)	(9)
Defined benefit plans - funding		(13)	(12)	(53)
Other operating activities
Other assets		(69)	(126)	(111)
Other liabilities		(349)	39	8
Net cash provided by operating activities - continuing operations		1,758	1,730	1,544
Net cash provided by operating activities - discontinued operations		0	0	726
Net cash provided by operating activities		1,758	1,730	2,270
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(2,390)	(2,155)	(1,973)
Proceeds from sale of Safari Holdings, net of cash divested		0	146	0
Proceeds from sale of U.K. utility business, net of cash divested		0	0	10,560
Acquisition of Narragansett Electric, net of cash acquired		0	(3,660)	0
Other investing activities		7	15	(23)
Net cash provided by (used in) investing activities - continuing operations		(2,383)	(5,654)	8,564
Net cash provided by (used in) investing activities - discontinued operations		0	0	(607)
Net cash provided by (used in) investing activities		(2,383)	(5,654)	7,957
Cash Flows from Financing Activities
Issuance of long-term debt		3,252	850	650
Retirement of long-term debt		(1,854)	(264)	(4,606)
Payment of common stock dividends		(704)	(787)	(1,279)
Purchase of treasury stock		0	0	(1,003)
Retirement of term loan		0	0	(300)
Retirement of commercial paper		0	0	(73)
Net increase (decrease) in short-term debt		7	916	(726)
Other investing activities		(51)	(6)	(7)
Net cash provided by (used in) financing activities - continuing operations		650	709	(7,344)
Net cash provided by (used in) financing activities - discontinued operations		0	0	(411)
Contributions from discontinued operations		0	0	365
Net cash provided by (used in) financing activities		650	709	(7,390)
Effect of Exchange Rates on Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		0	0	8
Net (Increase) Decrease in Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		0	0	284
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		25	(3,215)	3,129
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		357	3,572	443
Cash, Cash Equivalents and Restricted Cash at End of Period		382	357	3,572
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		604	462	191
Income taxes - net		281	163	284
Accrued expenditures for property, plant and equipment at December 31,		220	269	245
Accrued interest		27	1	(32)
PPL Electric Utilities Corp [Member]
Cash Flows from Operating Activities
Net income (loss)	[1]	519	525	445
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		397	393	424
Amortization		41	22	19
Defined benefit plans - expense (income)		(42)	(23)	(10)
Deferred income taxes and investment tax credits		46	91	79
Other		(24)	(11)	(19)
Change in current assets and current liabilities
Accounts receivable		(78)	(47)	(9)
Accounts payable		13	46	(3)
Unbilled Revenues		75	(95)	(8)
Fuel, materials and supplies		(30)	(11)	(5)
Prepayments		2	(2)	(4)
Taxes payable		15	5	14
Regulatory assets and liabilities, net		(38)	(59)	96
Other		9	(19)	(1)
Defined benefit plans - funding		(5)	0	(21)
Other operating activities
Other assets		3	(47)	(12)
Other liabilities		1	(11)	(16)
Net cash provided by operating activities		912	757	969
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(956)	(886)	(898)
Expenditures for intangible assets		(6)	(2)	(6)
Net (increase) decrease in notes receivable from affiliate		0	499	(499)
Other investing activities		4	2	3
Net cash provided by (used in) investing activities		(958)	(387)	(1,400)
Cash Flows from Financing Activities
Issuance of long-term debt		1,329	250	650
Retirement of long-term debt		(1,240)	(250)	(400)
Contributions from parent		206	0	1,075
Payment of common stock dividends to parent		(323)	(340)	(334)
Return of Capital to Parent		(250)	(170)	(574)
Net increase (decrease) in short-term debt		364	145	0
Debt Issuance Costs		(14)	0	0
Other investing activities		0	(1)	(5)
Net cash provided by (used in) financing activities		72	(366)	412
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		26	4	(19)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		25	21	40
Cash, Cash Equivalents and Restricted Cash at End of Period		51	25	21
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		205	164	156
Income taxes - net		92	111	64
Accrued expenditures for property, plant and equipment at December 31,		122	133	118
Accrued interest		8	0	0
Louisville Gas And Electric Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[2]	266	272	249
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		302	298	279
Amortization		14	5	2
Defined benefit plans - expense (income)		0	0	1
Deferred income taxes and investment tax credits		(14)	(6)	8
Other		(7)	4	0
Change in current assets and current liabilities
Accounts receivable		40	(19)	(11)
Accounts receivable from affiliates		7	(5)	(13)
Accounts payable		(40)	22	32
Accounts payable to affiliates		(8)	30	(4)
Unbilled Revenues		24	(32)	(1)
Fuel, materials and supplies		24	(28)	(17)
Taxes payable		0	7	2
Regulatory assets and liabilities, net		25	17	(23)
Other		1	5	(18)
Defined benefit plans - funding		1	(2)	(3)
Other operating activities
Expenditures for asset retirement obligations		(11)	(13)	(27)
Other assets		(21)	(8)	2
Other liabilities		1	(4)	0
Net cash provided by operating activities		609	543	458
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(378)	(371)	(466)
Other investing activities		0	(11)	0
Net cash provided by (used in) investing activities		(378)	(360)	(466)
Cash Flows from Financing Activities
Issuance of long-term debt		464	300	0
Retirement of long-term debt		(300)	0	0
Retirement of commercial paper		0	0	(41)
Net increase (decrease) in short-term debt		(179)	110	(152)
Contributions from parent		67	90	74
Payment of common stock dividends to parent		(166)	(275)	(192)
Return of Capital to Parent		(161)	0	0
Other investing activities		(5)	0	(3)
Net cash provided by (used in) financing activities		(280)	(99)	10
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		(49)	84	2
Proceeds from (Repayments of) Related Party Debt		0	(324)	324
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		93	9	7
Cash, Cash Equivalents and Restricted Cash at End of Period		44	93	9
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		93	83	77
Income taxes - net		84	57	52
Accrued expenditures for property, plant and equipment at December 31,		30	43	60
Accrued interest		5	0	0
Kentucky Utilities Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[3]	312	322	296
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		392	386	366
Amortization		20	18	12
Defined benefit plans - expense (income)		(5)	(4)	(3)
Deferred income taxes and investment tax credits		(10)	2	1
Other		(2)	3	(3)
Change in current assets and current liabilities
Accounts receivable		16	(16)	6
Accounts receivable from affiliates		0	0	1
Accounts payable		(26)	26	(12)
Accounts payable to affiliates		(24)	37	15
Unbilled Revenues		17	(23)	6
Fuel, materials and supplies		(17)	(41)	1
Taxes payable		5	7	(10)
Regulatory assets and liabilities, net		25	(19)	(22)
Other		(4)	(3)	(18)
Defined benefit plans - funding		0	(1)	(1)
Other operating activities
Expenditures for asset retirement obligations		(28)	(29)	(36)
Other assets		(25)	(1)	9
Other liabilities		(4)	(4)	0
Net cash provided by operating activities		647	661	608
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(572)	(547)	(560)
Other investing activities		6	0	4
Net cash provided by (used in) investing activities		(566)	(547)	(556)
Cash Flows from Financing Activities
Issuance of long-term debt		459	300	0
Retirement of long-term debt		(313)	0	0
Retirement of commercial paper		0	0	(32)
Net increase (decrease) in short-term debt		(8)	101	(171)
Contributions from parent		76	84	100
Payment of common stock dividends to parent		(190)	(296)	(250)
Return of Capital to Parent		(84)	0	0
Other investing activities		(4)	(1)	(2)
Net cash provided by (used in) financing activities		(64)	(106)	(61)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		17	8	(9)
Proceeds from (Repayments of) Related Party Debt		0	(294)	294
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		21	13	22
Cash, Cash Equivalents and Restricted Cash at End of Period		38	21	13
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		125	112	105
Income taxes - net		78	78	72
Accrued expenditures for property, plant and equipment at December 31,		38	56	67
Accrued interest		$ 5	$ 1	$ 0

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.