CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Sep. 30, 2025	Dec. 31, 2024
Assets, Current [Abstract]
Cash and cash equivalents		$ 1,102	$ 306
Accounts receivable (less reserve:)
Customer		1,002	961
Other		101	76
Unbilled revenues		355	485
Fuel, materials and supplies		517	511
Prepayments		145	136
Regulatory Assets, Current		312	320
Other current assets		98	85
Total Current Assets		3,632	2,880
Property, Plant and Equipment
Regulated utility plant		41,776	40,391
Less: accumulated depreciation - regulated utility plant		10,182	9,682
Regulated utility plant, net		31,594	30,709
Non-regulated property, plant and equipment		81	79
Less: accumulated depreciation - non-regulated property, plant and equipment		35	29
Non-regulated property, plant and equipment, net		46	50
Construction work in progress		3,513	2,390
Property, Plant and Equipment, net		35,153	33,149
Other Noncurrent Assets
Regulatory assets		2,058	2,060
Goodwill		2,247	2,247
Other intangibles		312	314
Other noncurrent assets		537	419
Assets, Noncurrent		5,154	5,040
Total Assets		43,939	41,069
Current Liabilities
Short-term debt		595	303
Long-term debt due within one year		1,455	551
Accounts payable		1,188	1,196
Taxes		132	103
Interest		237	157
Dividends		197	186
Regulatory liabilities		291	223
Other current liabilities		596	614
Liabilities, Current, Total		4,691	3,333
Long-term Debt, Unclassified [Abstract]
Long-term Debt		16,936	15,952
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,575	3,356
Investment tax credits		109	111
Accrued pension obligations		284	317
Asset retirement obligations		141	136
Regulatory liabilities		3,322	3,335
Other deferred credits and noncurrent liabilities		468	452
Total Deferred Credits and Other Noncurrent Liabilities		7,899	7,707
Commitments and Contingent Liabilities
Equity
Common stock	[1]	8	8
Additional paid-in capital		12,356	12,346
Treasury Stock		(901)	(928)
Earnings reinvested		3,143	2,835
Accumulated other comprehensive loss		(193)	(184)
Total Equity		14,413	14,077
Total Liabilities and Equity		43,939	41,069
PPL Electric Utilities Corp [Member]
Assets, Current [Abstract]
Cash and cash equivalents		13	24
Accounts receivable (less reserve:)
Other		45	8
Unbilled revenues		116	159
Notes Receivable from affiliates		509	222
Fuel, materials and supplies		132	104
Prepayments		69	74
Regulatory Assets, Current		90	133
Other current assets		40	30
Total Current Assets		1,438	1,117
Property, Plant and Equipment
Regulated utility plant		17,100	16,469
Less: accumulated depreciation - regulated utility plant		4,106	4,052
Regulated utility plant, net		12,994	12,417
Construction work in progress		1,184	898
Property, Plant and Equipment, net		14,178	13,315
Other Noncurrent Assets
Regulatory assets		703	673
Other intangibles		277	274
Other noncurrent assets		106	96
Assets, Noncurrent		1,086	1,043
Total Assets		16,702	15,475
Current Liabilities
Interest		78	55
Current Customer Deposits		63	25
Regulatory liabilities		71	57
Other current liabilities		62	60
Liabilities, Current, Total		872	806
Long-term Debt, Unclassified [Abstract]
Long-term Debt		5,707	5,214
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,815	1,726
Regulatory liabilities		827	839
Other deferred credits and noncurrent liabilities		127	160
Total Deferred Credits and Other Noncurrent Liabilities		2,769	2,725
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		5,108	4,668
Earnings reinvested		1,882	1,698
Total Equity		7,354	6,730
Total Liabilities and Equity		16,702	$ 15,475
Financing Receivable, after Allowance for Credit Loss, Related Party, Type [Extensible Enumeration]			CEP Reserves, Inc
PPL Electric Utilities Corp [Member] | Related Party
Accounts receivable (less reserve:)
Customer		6	$ 10
Notes Receivable from affiliates		509	222
Current Liabilities
Accounts payable		69	44
PPL Electric Utilities Corp [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		418	353
Current Liabilities
Accounts payable		529	565
Louisville Gas And Electric Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		515	8
Accounts receivable (less reserve:)
Other		28	23
Unbilled revenues		70	87
Fuel, materials and supplies		142	157
Prepayments		12	9
Regulatory Assets, Current		24	8
Other current assets		9	2
Total Current Assets		955	468
Property, Plant and Equipment
Regulated utility plant		7,950	7,748
Less: accumulated depreciation - regulated utility plant		1,805	1,643
Regulated utility plant, net		6,145	6,105
Construction work in progress		713	443
Property, Plant and Equipment, net		6,858	6,548
Other Noncurrent Assets
Regulatory assets		485	491
Goodwill		389	389
Other intangibles		8	12
Other noncurrent assets		153	84
Assets, Noncurrent		1,035	976
Total Assets		8,848	7,992
Current Liabilities
Short-term debt		0	25
Long-term debt due within one year		$ 390	$ 300
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Related Party
Notes Payable to affiliates		$ 0	$ 43
Taxes		41	40
Interest		49	21
Current Customer Deposits		36	36
Regulatory liabilities		14	14
Asset Retirement Obligation, Current		4	11
Other current liabilities		46	50
Liabilities, Current, Total		839	762
Long-term Debt, Unclassified [Abstract]
Long-term Debt		2,775	2,171
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		822	803
Investment tax credits		29	30
Asset retirement obligations		75	73
Regulatory liabilities		812	815
Price risk management liabilities		5	3
Other deferred credits and noncurrent liabilities		78	64
Total Deferred Credits and Other Noncurrent Liabilities		1,821	1,788
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		2,028	1,982
Earnings reinvested		961	865
Total Equity		3,413	3,271
Total Liabilities and Equity		8,848	7,992
Louisville Gas And Electric Co [Member] | Related Party
Accounts receivable (less reserve:)
Customer		31	40
Current Liabilities
Accounts payable		70	64
Louisville Gas And Electric Co [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		124	134
Current Liabilities
Accounts payable		189	158
Kentucky Utilities Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		341	13
Accounts receivable (less reserve:)
Customer		155	160
Other		31	22
Unbilled revenues		90	102
Fuel, materials and supplies		177	173
Prepayments		14	11
Regulatory Assets, Current		0	1
Other current assets		19	10
Total Current Assets		827	491
Property, Plant and Equipment
Regulated utility plant		10,614	10,419
Less: accumulated depreciation - regulated utility plant		2,873	2,652
Regulated utility plant, net		7,741	7,767
Construction work in progress		1,004	567
Property, Plant and Equipment, net		8,745	8,334
Other Noncurrent Assets
Regulatory assets		458	458
Goodwill		607	607
Other intangibles		26	28
Other noncurrent assets		170	155
Assets, Noncurrent		1,261	1,248
Total Assets		10,833	10,073
Current Liabilities
Short-term debt		0	140
Long-term debt due within one year		$ 414	$ 250
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Related Party
Notes Payable to affiliates		$ 0	$ 73
Taxes		40	37
Interest		61	24
Current Customer Deposits		40	39
Regulatory liabilities		24	22
Asset Retirement Obligation, Current		4	10
Other current liabilities		53	58
Liabilities, Current, Total		862	849
Long-term Debt, Unclassified [Abstract]
Long-term Debt		3,346	2,816
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		958	924
Investment tax credits		80	81
Asset retirement obligations		58	54
Regulatory liabilities		999	1,009
Other deferred credits and noncurrent liabilities		44	41
Total Deferred Credits and Other Noncurrent Liabilities		2,139	2,109
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		3,110	3,056
Earnings reinvested		1,068	935
Total Equity		4,486	4,299
Total Liabilities and Equity		10,833	10,073
Kentucky Utilities Co [Member] | Related Party
Current Liabilities
Accounts payable		118	100
Kentucky Utilities Co [Member] | Nonrelated Party
Current Liabilities
Accounts payable		$ 108	$ 96

[1] 1,560,000 shares authorized, 770,798 shares issued and 739,545 shares outstanding at September 30, 2025. 1,560,000 shares authorized, 770,215 shares issued and 738,033 shares outstanding at December 31, 2024.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at September 30, 2025 and December 31, 2024.

[3] 75,000 shares authorized; 21,294 shares issued and outstanding at September 30, 2025 and December 31, 2024.

[4] 80,000 shares authorized; 37,818 shares issued and outstanding at September 30, 2025 and December 31, 2024.