CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Mar. 31, 2025	Dec. 31, 2024
Assets, Current [Abstract]
Cash and cash equivalents		$ 312	$ 306
Accounts receivable (less reserve:)
Customer		1,208	961
Other		93	76
Unbilled revenues		377	485
Fuel, materials and supplies		476	511
Prepayments		223	136
Regulatory Assets, Current		274	320
Other current assets		133	85
Total Current Assets		3,096	2,880
Property, Plant and Equipment
Regulated utility plant		40,648	40,391
Less: accumulated depreciation - regulated utility plant		9,751	9,682
Regulated utility plant, net		30,897	30,709
Non-regulated property, plant and equipment		80	79
Less: accumulated depreciation - non-regulated property, plant and equipment		30	29
Non-regulated property, plant and equipment, net		50	50
Construction work in progress		2,695	2,390
Property, Plant and Equipment, net		33,642	33,149
Other Noncurrent Assets
Regulatory assets		2,049	2,060
Goodwill		2,247	2,247
Other intangibles		312	314
Other noncurrent assets		463	419
Assets, Noncurrent		5,071	5,040
Total Assets		41,809	41,069
Current Liabilities
Short-term debt		778	303
Long-term debt due within one year		569	551
Accounts payable		1,097	1,196
Taxes		143	103
Interest		224	157
Dividends		197	186
Regulatory liabilities		274	223
Other current liabilities		545	614
Liabilities, Current, Total		3,827	3,333
Long-term Debt, Unclassified [Abstract]
Long-term Debt		15,938	15,952
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,421	3,356
Investment tax credits		111	111
Accrued pension obligations		298	317
Asset retirement obligations		130	136
Regulatory liabilities		3,338	3,335
Other deferred credits and noncurrent liabilities		449	452
Total Deferred Credits and Other Noncurrent Liabilities		7,747	7,707
Commitments and Contingent Liabilities
Equity
Common stock	[1]	8	8
Additional paid-in capital		12,330	12,346
Treasury Stock		(904)	(928)
Earnings reinvested		3,047	2,835
Accumulated other comprehensive loss		(184)	(184)
Total Equity		14,297	14,077
Total Liabilities and Equity		41,809	41,069
PPL Electric Utilities Corp [Member]
Assets, Current [Abstract]
Cash and cash equivalents		27	24
Accounts receivable (less reserve:)
Other		21	8
Unbilled revenues		116	159
Notes Receivable from affiliates			222
Fuel, materials and supplies		110	104
Prepayments		164	74
Regulatory Assets, Current		94	133
Other current assets		43	30
Total Current Assets		1,043	1,117
Property, Plant and Equipment
Regulated utility plant		16,503	16,469
Less: accumulated depreciation - regulated utility plant		3,983	4,052
Regulated utility plant, net		12,520	12,417
Construction work in progress		1,032	898
Property, Plant and Equipment, net		13,552	13,315
Other Noncurrent Assets
Regulatory assets		685	673
Other intangibles		274	274
Other noncurrent assets		100	96
Assets, Noncurrent		1,059	1,043
Total Assets		15,654	15,475
Current Liabilities
Short-term debt		55	0
Interest		74	55
Regulatory liabilities		54	57
Other current liabilities		77	85
Liabilities, Current, Total		870	806
Long-term Debt, Unclassified [Abstract]
Long-term Debt		5,214	5,214
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,756	1,726
Regulatory liabilities		835	839
Other deferred credits and noncurrent liabilities		153	160
Total Deferred Credits and Other Noncurrent Liabilities		2,744	2,725
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		4,668	4,668
Earnings reinvested		1,794	1,698
Total Equity		6,826	6,730
Total Liabilities and Equity		15,654	$ 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		11	$ 10
Notes Receivable from affiliates		0	222
Current Liabilities
Accounts payable		133	44
PPL Electric Utilities Corp [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		457	353
Current Liabilities
Accounts payable		477	565
Louisville Gas And Electric Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		10	8
Accounts receivable (less reserve:)
Other		31	23
Unbilled revenues		68	87
Fuel, materials and supplies		134	157
Prepayments		9	9
Regulatory Assets, Current		31	8
Other current assets		11	2
Total Current Assets		468	468
Property, Plant and Equipment
Regulated utility plant		7,787	7,748
Less: accumulated depreciation - regulated utility plant		1,696	1,643
Regulated utility plant, net		6,091	6,105
Construction work in progress		515	443
Property, Plant and Equipment, net		6,606	6,548
Other Noncurrent Assets
Regulatory assets		491	491
Goodwill		389	389
Other intangibles		11	12
Other noncurrent assets		116	84
Assets, Noncurrent		1,007	976
Total Assets		8,081	7,992
Current Liabilities
Short-term debt		89	25
Long-term debt due within one year		$ 300	$ 300
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Related Party
Notes Payable to affiliates		$ 0	$ 43
Taxes		17	40
Interest		44	21
Current Customer Deposits		36	36
Regulatory liabilities		16	14
Asset Retirement Obligation, Current		10	11
Other current liabilities		41	50
Liabilities, Current, Total		836	762
Long-term Debt, Unclassified [Abstract]
Long-term Debt		2,171	2,171
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		809	803
Investment tax credits		29	30
Asset retirement obligations		74	73
Regulatory liabilities		814	815
Price risk management liabilities		4	3
Other deferred credits and noncurrent liabilities		66	64
Total Deferred Credits and Other Noncurrent Liabilities		1,796	1,788
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		1,927	1,982
Earnings reinvested		927	865
Total Equity		3,278	3,271
Total Liabilities and Equity		8,081	7,992
Louisville Gas And Electric Co [Member] | Related Party
Accounts receivable (less reserve:)
Customer		28	40
Notes Receivable from affiliates		5	0
Current Liabilities
Accounts payable		90	64
Louisville Gas And Electric Co [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		141	134
Current Liabilities
Accounts payable		193	158
Kentucky Utilities Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		14	13
Accounts receivable (less reserve:)
Customer		180	160
Other		28	22
Unbilled revenues		84	102
Fuel, materials and supplies		166	173
Prepayments		10	11
Regulatory Assets, Current		0	1
Other current assets		16	9
Total Current Assets		498	491
Property, Plant and Equipment
Regulated utility plant		10,454	10,419
Less: accumulated depreciation - regulated utility plant		2,721	2,652
Regulated utility plant, net		7,733	7,767
Construction work in progress		679	567
Property, Plant and Equipment, net		8,412	8,334
Other Noncurrent Assets
Regulatory assets		460	458
Goodwill		607	607
Other intangibles		27	28
Other noncurrent assets		157	155
Assets, Noncurrent		1,251	1,248
Total Assets		10,161	10,073
Current Liabilities
Short-term debt		208	140
Long-term debt due within one year		$ 268	$ 250
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Related Party
Notes Payable to affiliates		$ 8	$ 73
Taxes		19	37
Interest		56	24
Current Customer Deposits		39	39
Regulatory liabilities		26	22
Asset Retirement Obligation, Current		14	10
Other current liabilities		61	58
Liabilities, Current, Total		917	849
Long-term Debt, Unclassified [Abstract]
Long-term Debt		2,798	2,816
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		934	924
Investment tax credits		81	81
Asset retirement obligations		47	54
Regulatory liabilities		1,007	1,009
Other deferred credits and noncurrent liabilities		36	41
Total Deferred Credits and Other Noncurrent Liabilities		2,105	2,109
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		3,019	3,056
Earnings reinvested		1,014	935
Total Equity		4,341	4,299
Total Liabilities and Equity		10,161	10,073
Kentucky Utilities Co [Member] | Related Party
Current Liabilities
Accounts payable		129	100
Kentucky Utilities Co [Member] | Nonrelated Party
Current Liabilities
Accounts payable		$ 89	$ 96

[1] 1,560,000 shares authorized, 770,415 shares issued and 739,066 shares outstanding at March 31, 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 March 31, 2025 and December 31, 2024.

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

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