CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Cash Flows from Operating Activities
Net income (loss)		$ 285	$ 273
Depreciation		313	271
Amortization		17	7
Deferred income taxes and investment tax credits		77	39
Other		(10)	7
Change in current assets and current liabilities
Accounts receivable		(94)	(38)
Accounts payable		(63)	4
Unbilled revenues		109	28
Fuel, materials and supplies		10	42
Prepayments		(83)	(75)
Taxes payable		(42)	(4)
Regulatory assets and liabilities, net		(46)	(41)
Accrued interest		67	57
Other		(14)	(53)
Other operating activities
Defined benefit plans - funding		(3)	(3)
Other assets		(61)	(18)
Other liabilities		(32)	6
Net cash provided by operating activities		430	502
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(499)	(427)
Other investing activities		(4)	0
Net cash used in investing activities		(503)	(427)
Cash Flows from Financing Activities
Issuance of long-term debt		3,127	0
Retirement of long-term debt		(1,750)	0
Payment of common stock dividends		(171)	(306)
Net increase (decrease) in short-term debt		(985)	916
Other financing activities		(44)	(7)
Net cash provided by financing activities		177	603
Net Increase in Cash, Cash Equivalents and Restricted Cash		104	678
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		460
Cash, Cash Equivalents and Restricted Cash at End of Period		461	4,250
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at March 31,		257	236
PPL Electric Utilities Corp [Member]
Cash Flows from Operating Activities
Net income (loss)	[1]	138	143
Depreciation		99	98
Amortization		9	3
Defined benefit plans - (income) expense		(10)	(6)
Deferred income taxes and investment tax credits		26	41
Other		(5)	(4)
Change in current assets and current liabilities
Accounts receivable		(115)	(52)
Accounts payable		30	20
Unbilled revenues		20	14
Prepayments		(77)	(72)
Taxes payable		(36)	(15)
Regulatory assets and liabilities, net		(12)	(43)
Other		15	2
Other operating activities
Defined benefit plans - funding		(1)	0
Other assets		(22)	(2)
Other liabilities		(20)	(5)
Net cash provided by operating activities		39	122
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(156)	(188)
Notes receivable from affiliates		0	203
Net cash used in investing activities		(156)	15
Cash Flows from Financing Activities
Issuance of long-term debt		1,329	0
Retirement of long-term debt		(1,150)	0
Payment of common stock dividends to parent		(74)	(72)
Net increase (decrease) in short-term debt		(145)	0
Contributions from parent		200	0
Return of capital to parent		0	(40)
Net cash provided by financing activities		148	(112)
Net Increase in Cash, Cash Equivalents and Restricted Cash		31	25
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	46
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at March 31,		142	153
Debt Issuance Costs		(12)	0
Louisville Gas And Electric Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[2]	86	93
Depreciation		75	74
Amortization		3	(1)
Deferred income taxes and investment tax credits		0	(4)
Other		0	1
Change in current assets and current liabilities
Accounts receivable		28	4
Accounts receivable from affiliates		14	2
Accounts payable		(35)	(1)
Increase (Decrease) in Accounts Payable, Related Parties		31	(10)
Unbilled revenues		33	10
Fuel, materials and supplies		41	42
Taxes payable		(27)	0
Regulatory assets and liabilities, net		21	5
Accrued interest		18	17
Other		(11)	(6)
Other operating activities
Expenditures for asset retirement obligations		(2)	(6)
Other assets		(10)	(1)
Other liabilities		(1)	(1)
Net cash provided by operating activities		264	218
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(86)	(99)
Notes receivable from affiliates		(9)	(4)
Net cash used in investing activities		(95)	(103)
Cash Flows from Financing Activities
Issuance of long-term debt		399	0
Retirement of long-term debt		(300)	0
Increase Decrease In Notes Payable To Affiliates		0	(324)
Payment of common stock dividends to parent		(31)	(75)
Net increase (decrease) in short-term debt		(179)	284
Return of capital to parent		(120)	0
Other financing activities		(3)	0
Net cash provided by financing activities		(234)	(115)
Net Increase in Cash, Cash Equivalents and Restricted Cash		(65)	0
Cash and Cash Equivalents at Beginning of Period		93	9
Cash and Cash Equivalents at End of Period		28	9
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at March 31,		46	30
Kentucky Utilities Co [Member]
Cash Flows from Operating Activities
Net income (loss)	[3]	88	107
Depreciation		98	95
Amortization		5	4
Deferred income taxes and investment tax credits		(1)	(3)
Other		(1)	1
Change in current assets and current liabilities
Accounts receivable		16	(6)
Accounts payable		(16)	0
Increase (Decrease) in Accounts Payable, Related Parties		2	(12)
Unbilled revenues		25	4
Fuel, materials and supplies		(8)	3
Taxes payable		(11)	20
Regulatory assets and liabilities, net		8	(3)
Accrued interest		26	26
Other		2	(5)
Other operating activities
Expenditures for asset retirement obligations		(5)	(6)
Other assets		(13)	(6)
Other liabilities		(1)	0
Net cash provided by operating activities		214	219
Cash Flows from Investing Activities
Expenditures for property, plant and equipment		(141)	(129)
Net cash used in investing activities		(141)	(129)
Cash Flows from Financing Activities
Issuance of long-term debt		399	0
Retirement of long-term debt		(300)	0
Increase Decrease In Notes Payable To Affiliates		9	(290)
Payment of common stock dividends to parent		(35)	(90)
Net increase (decrease) in short-term debt		(101)	285
Return of capital to parent		(54)	0
Other financing activities		(3)	0
Net cash provided by financing activities		(85)	(95)
Net Increase in Cash, Cash Equivalents and Restricted Cash		(12)	(5)
Cash and Cash Equivalents at Beginning of Period		21	13
Cash and Cash Equivalents at End of Period		9	8
Supplemental Disclosures of Cash Flow Information
Accrued expenditures for property, plant and equipment at March 31,		$ 60	$ 49

[1] Net income equals comprehensive income.

[2] Net income equals comprehensive income.

[3] Net income equals comprehensive income.