CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash Flows from Operating Activities
Net income (loss)		$ 756	$ (1,480)	$ 1,469
Loss (income) from discontinued operations (net of income taxes)		(42)	1,498	(829)
Income from Continuing Operations After Income Taxes		714	18	640
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		1,181	1,082	1,022
Amortization		52	39	58
Deferred income taxes and investment tax credits		179	87	169
Loss on sale of Safari Holdings		60	0	0
Impairment of solar panels		0	37	0
Loss on Extinguishment of Debt		0	395	0
Other		35	20	67
Change in current assets and current liabilities
Accounts receivable		(176)	(14)	(70)
Accounts payable		358	24	(1)
Unbilled Revenues		(197)	(5)	3
Fuel, materials and supplies		(90)	(21)	(9)
Taxes payable		(80)	27	131
Regulatory assets and liabilities, net		(119)	52	(63)
Other		(88)	(41)	124
Other operating activities
Defined benefit plans - funding		(12)	(53)	(119)
Other assets		(126)	(111)	(59)
Other liabilities		39	8	(21)
Net cash provided by operating activities - continuing operations		1,730	1,544	1,872
Net cash provided by operating activities - discontinued operations		0	726	874
Net cash provided by operating activities		1,730	2,270	2,746
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(2,155)	(1,973)	(2,270)
Proceeds from sale of Safari Holdings, net of cash divested		146	0	0
Proceeds from sale of U.K. utility business, net of cash divested		0	10,560	0
Acquisition of Narragansett Electric, net of cash acquired		(3,660)	0	0
Other investing activities		15	(23)	4
Net cash provided by (used in) investing activities - continuing operations		(5,654)	8,564	(2,266)
Net cash provided by (used in) investing activities - discontinued operations		0	(607)	(992)
Net cash provided by (used in) investing activities		(5,654)	7,957	(3,258)
Cash Flows from Financing Activities
Issuance of long-term debt		850	650	1,848
Retirement of long-term debt		(264)	(4,606)	(975)
Payment of common stock dividends		(787)	(1,279)	(1,275)
Purchase of treasury stock		0	(1,003)	0
Issuance of term loan		0	0	300
Issuance of commercial paper		0	0	73
Retirement of term loan		0	(300)	0
Retirement of commercial paper		0	(73)	0
Net increase (decrease) in short-term debt		916	(726)	(43)
Other investing activities		(6)	(7)	171
Net cash provided by (used in) financing activities - continuing operations		709	(7,344)	99
Net cash provided by (used in) financing activities - discontinued operations		0	(411)	209
Contributions from discontinued operations		0	365	78
Net cash provided by (used in) financing activities		709	(7,390)	386
Effect of Exchange Rates on Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		0	8	17
Net (Increase) Decrease in Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		0	284	(108)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		(3,215)	3,129	(217)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		3,572	443	660
Cash, Cash Equivalents and Restricted Cash at End of Period		357	3,572	443
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		462	191	586
Income taxes - net		163	284	4
Accrued expenditures for property, plant and equipment at December 31,		269	245	257
PPL Electric Utilities Corp [Member]
Cash Flows from Operating Activities
Net income (loss)	[1]	525	445	497
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		393	424	403
Amortization		22	19	26
Defined benefit plans - expense (income)		(23)	(10)	(1)
Deferred income taxes and investment tax credits		91	79	83
Other		(11)	(19)	(5)
Change in current assets and current liabilities
Accounts receivable		(47)	(9)	(47)
Accounts payable		46	(3)	21
Unbilled Revenues		(95)	(8)	13
Fuel, materials and supplies		(11)	(5)	(18)
Prepayments		(2)	(4)	(3)
Taxes payable		5	14	4
Regulatory assets and liabilities, net		(59)	96	(40)
Other		(19)	(1)	(10)
Other operating activities
Defined benefit plans - funding		0	(21)	(21)
Other assets		(47)	(12)	(28)
Other liabilities		(11)	(16)	10
Net cash provided by operating activities		757	969	884
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(886)	(898)	(1,145)
Expenditures for intangible assets		(2)	(6)	(9)
Net (increase) decrease in notes receivable from affiliate		499	(499)	0
Other investing activities		2	3	3
Net cash provided by (used in) investing activities		(387)	(1,400)	(1,151)
Cash Flows from Financing Activities
Issuance of long-term debt		250	650	250
Retirement of long-term debt		(250)	(400)	0
Contributions from parent		0	1,075	940
Payment of common stock dividends to parent		(340)	(334)	(400)
Return of Capital to Parent		(170)	(574)	(745)
Net increase (decrease) in short-term debt		145	0	0
Other investing activities		(1)	(5)	(2)
Net cash provided by (used in) financing activities		(366)	412	43
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		4	(19)	(224)
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		21	40	264
Cash, Cash Equivalents and Restricted Cash at End of Period		25	21	40
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		164	156	158
Income taxes - net		111	64	67
Accrued expenditures for property, plant and equipment at December 31,		133	118	156
Louisville Gas And Electric Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[2]	272	249	244
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		298	279	259
Amortization		5	2	9
Defined benefit plans - expense (income)		0	1	3
Deferred income taxes and investment tax credits		(6)	8	3
Other		4	0	0
Change in current assets and current liabilities
Accounts receivable		(19)	(11)	(3)
Accounts receivable from affiliates		(5)	(13)	4
Accounts payable		22	32	(18)
Accounts payable to affiliates		30	(4)	(5)
Unbilled Revenues		(32)	(1)	(3)
Fuel, materials and supplies		(28)	(17)	4
Taxes payable		7	2	(1)
Regulatory assets and liabilities, net		17	(23)	0
Other		5	(18)	(3)
Other operating activities
Defined benefit plans - funding		(2)	(3)	(11)
Expenditures for asset retirement obligations		(13)	(27)	(20)
Other assets		(8)	2	(2)
Other liabilities		(4)	0	23
Net cash provided by operating activities		543	458	483
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(371)	(466)	(456)
Other investing activities		(11)	0	0
Net cash provided by (used in) investing activities		(360)	(466)	(456)
Cash Flows from Financing Activities
Net increase (decrease) in notes payable with affiliates		(324)	324	0
Issuance of long-term debt		300	0	0
Issuance of commercial paper		0	0	41
Retirement of commercial paper		0	(41)	0
Net increase (decrease) in short-term debt		110	(152)	(17)
Contributions from parent		90	74	103
Payment of common stock dividends to parent		(275)	(192)	(161)
Other investing activities		0	(3)	(1)
Net cash provided by (used in) financing activities		(99)	10	(35)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		84	2	(8)
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		83	77	82
Income taxes - net		57	52	63
Accrued expenditures for property, plant and equipment at December 31,		43	60	60
Kentucky Utilities Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[3]	322	296	280
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation		386	366	346
Amortization		18	12	8
Defined benefit plans - expense (income)		(4)	(3)	0
Deferred income taxes and investment tax credits		2	1	20
Other		3	(3)	(1)
Change in current assets and current liabilities
Accounts receivable		(16)	6	(13)
Accounts receivable from affiliates		0	1	(1)
Accounts payable		26	(12)	9
Accounts payable to affiliates		37	15	(16)
Unbilled Revenues		(23)	6	(9)
Fuel, materials and supplies		(41)	1	6
Taxes payable		7	(10)	2
Regulatory assets and liabilities, net		(19)	(22)	(26)
Other		(3)	(18)	(5)
Other operating activities
Defined benefit plans - funding		(1)	(1)	(3)
Expenditures for asset retirement obligations		(29)	(36)	(64)
Other assets		(1)	9	(2)
Other liabilities		(4)	0	12
Net cash provided by operating activities		661	608	543
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(547)	(560)	(510)
Other investing activities		0	4	3
Net cash provided by (used in) investing activities		(547)	(556)	(507)
Cash Flows from Financing Activities
Net increase (decrease) in notes payable with affiliates		(294)	294	0
Issuance of long-term debt		300	0	498
Retirement of long-term debt		0	0	(500)
Issuance of commercial paper		0	0	32
Retirement of commercial paper		0	(32)	0
Net increase (decrease) in short-term debt		101	(171)	21
Contributions from parent		84	100	128
Payment of common stock dividends to parent		(296)	(250)	(200)
Other investing activities		(1)	(2)	(5)
Net cash provided by (used in) financing activities		(106)	(61)	(26)
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		8	(9)	10
Supplemental Disclosures of Cash Flow Information:
Interest - net of amount capitalized		112	105	109
Income taxes - net		78	72	44
Accrued expenditures for property, plant and equipment at December 31,		56	67	40
Accrued interest		$ 1	$ 0	$ 0

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.