CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021
Cash Flows from Operating Activities
Net income (loss)		$ 392	$ (1,821)
Loss from discontinued operations (net of income taxes)		0	1,488
Income from continuing operations (net of income taxes)		392	(333)
Depreciation		560	536
Amortization		15	40
Deferred income taxes and investment tax credits		56	29
Impairment of solar panels		0	37
Loss on extinguishment of debt		0	322
Stock-based compensation expense		18	17
Other		19	(26)
Change in current assets and current liabilities
Accounts receivable		(47)	(10)
Accounts payable		166	(26)
Unbilled revenues		22	53
Fuel, materials and supplies		23	43
Prepayments		(69)	(62)
Taxes payable		(41)	192
Counterparty collateral		62	0
Regulatory assets and liabilities, net		(211)	39
Other		36	26
Other operating activities
Defined benefit plans - funding		(7)	(36)
Other assets		(74)	(70)
Other liabilities		59	24
Net cash provided by operating activities - continuing operations		979	795
Net cash provided by operating activities - discontinued operations		0	726
Net cash provided by operating activities		979	1,521
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(1,009)	(969)
Acquisition of Narragansett Electric, net of cash acquired		(3,674)	0
Proceeds from sale of discontinued operations, net of cash divested		0	10,560
Other investing activities		0	(8)
Net cash provided by (used in) investing activities - continuing operations		(4,683)	9,583
Net cash provided by (used in) investing activities - discontinued operations		0	(607)
Net cash provided by (used in) investing activities		(4,683)	8,976
Cash Flows from Financing Activities
Issuance of long-term debt		0	650
Retirement of long-term debt		0	(2,379)
Payment of common stock dividends		(453)	(640)
Retirement of term loan		0	(300)
Retirement of commercial paper		0	(73)
Net increase (decrease) in short-term debt		919	(795)
Other financing activities		3	(19)
Net cash provided by (used in) financing activities - continuing operations		469	(3,556)
Net cash provided by (used in) financing activities - discontinued operations		0	(411)
Contributions from discontinued operations		0	365
Net cash provided by (used in) financing activities		469	(3,602)
Effect of Exchange Rates on Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		0	8
Net Decrease in Cash, Cash Equivalents and Restricted Cash included in Discontinued Operations		0	284
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		(3,235)	7,187
Cash and Cash Equivalents at Beginning of Period		3,571
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		3,572	443
Cash and Cash Equivalents at End of Period		336
Cash, Cash Equivalents and Restricted Cash at End of Period		337	7,630
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		195	222
PPL Electric Utilities Corp [Member]
Cash Flows from Operating Activities
Net income (loss)	[1]	267	209
Depreciation		197	217
Amortization		5	10
Defined benefit plans - (income) expense		(11)	(5)
Deferred income taxes and investment tax credits		67	74
Other		(9)	(9)
Change in current assets and current liabilities
Accounts receivable		(55)	(74)
Accounts payable		18	(62)
Unbilled revenues		8	35
Fuel, materials and supplies		(5)	3
Prepayments		(52)	(56)
Taxes payable		(23)	(9)
Counterparty collateral		62	0
Regulatory assets and liabilities, net		(73)	61
Other		(9)	(1)
Other operating activities
Defined benefit plans - funding		0	(21)
Other assets		(25)	(10)
Other liabilities		(7)	(8)
Net cash provided by operating activities		355	354
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(451)	(458)
Notes receivable from affiliates		333	(1,075)
Other investing activities		1	0
Net cash provided by (used in) investing activities		(117)	(1,533)
Cash Flows from Financing Activities
Issuance of long-term debt		0	650
Payment of common stock dividends to parent		(165)	(201)
Contributions from parent		0	750
Return of capital to parent		(65)	0
Other financing activities		0	(2)
Net cash provided by (used in) financing activities		(230)	1,197
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash		8	18
Cash and Cash Equivalents at Beginning of Period		21
Cash, Cash Equivalents and Restricted Cash at Beginning of Period		21	40
Cash and Cash Equivalents at End of Period		29
Cash, Cash Equivalents and Restricted Cash at End of Period		29	58
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		114	138
Louisville Gas And Electric Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[2]	147	120
Depreciation		149	134
Amortization		(3)	4
Defined benefit plans - (income) expense		(1)	0
Deferred income taxes and investment tax credits		(9)	5
Other		2	0
Change in current assets and current liabilities
Accounts receivable		19	10
Accounts receivable from affiliates		1	0
Accounts payable		15	8
Increase (Decrease) in Accounts Payable, Related Parties		(11)	(11)
Unbilled revenues		8	13
Fuel, materials and supplies		35	25
Taxes payable		(7)	(7)
Regulatory assets and liabilities, net		(16)	(12)
Other		1	(16)
Other operating activities
Defined benefit plans - funding		(2)	(2)
Expenditures for asset retirement obligations		(8)	(15)
Other assets		(2)	(1)
Other liabilities		(1)	3
Net cash provided by operating activities		317	258
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(183)	(215)
Net cash provided by (used in) investing activities		(183)	(215)
Cash Flows from Financing Activities
Increase Decrease In Notes Payable To Affiliates		(324)	282
Retirement of commercial paper		0	(41)
Payment of common stock dividends to parent		(136)	(109)
Net increase (decrease) in short-term debt		325	(221)
Contributions from parent		10	44
Other financing activities		0	(1)
Net cash provided by (used in) financing activities		(125)	(46)
Cash and Cash Equivalents, Period Increase (Decrease)		9	(3)
Cash and Cash Equivalents at Beginning of Period		9	7
Cash and Cash Equivalents at End of Period		18	4
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		33	44
Kentucky Utilities Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[3]	173	142
Depreciation		193	179
Amortization		8	3
Defined benefit plans - (income) expense		(2)	(2)
Deferred income taxes and investment tax credits		(5)	0
Other		2	(1)
Change in current assets and current liabilities
Accounts receivable		1	5
Accounts receivable from affiliates		0	1
Accounts payable		18	(15)
Increase (Decrease) in Accounts Payable, Related Parties		(13)	(5)
Unbilled revenues		(4)	8
Fuel, materials and supplies		(5)	13
Taxes payable		5	(7)
Regulatory assets and liabilities, net		(21)	(11)
Other		(4)	(19)
Other operating activities
Defined benefit plans - funding		(1)	(1)
Expenditures for asset retirement obligations		(14)	(18)
Other assets		2	0
Other liabilities		(1)	8
Net cash provided by operating activities		332	280
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(273)	(270)
Other investing activities		0	4
Net cash provided by (used in) investing activities		(273)	(266)
Cash Flows from Financing Activities
Increase Decrease In Notes Payable To Affiliates		(294)	226
Retirement of commercial paper		0	(32)
Payment of common stock dividends to parent		(159)	(111)
Net increase (decrease) in short-term debt		338	(171)
Contributions from parent		60	60
Other financing activities		0	(1)
Net cash provided by (used in) financing activities		(55)	(29)
Cash and Cash Equivalents, Period Increase (Decrease)		4	(15)
Cash and Cash Equivalents at Beginning of Period		13	22
Cash and Cash Equivalents at End of Period		17	7
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at June 30,		$ 46	$ 40

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.