CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Mar. 31, 2024	Dec. 31, 2023
Assets, Current [Abstract]
Cash and cash equivalents		$ 276	$ 331
Accounts receivable (less reserve:)
Customer		999	950
Other		271	271
Unbilled revenues		371	428
Fuel, materials and supplies		477	505
Prepayments		212	103
Regulatory Assets, Current		330	293
Other current assets		101	51
Total Current Assets		3,037	2,932
Property, Plant and Equipment
Regulated utility plant		39,031	38,608
Less:  accumulated depreciation - regulated utility plant		9,327	9,156
Regulated utility plant, net		29,704	29,452
Non-regulated property, plant and equipment		71	72
Less:  accumulated depreciation - non-regulated property, plant and equipment		24	23
Non-regulated property, plant and equipment, net		47	49
Construction work in progress		1,996	1,917
Property, Plant and Equipment, net		31,747	31,418
Other Noncurrent Assets
Regulatory assets		1,859	1,874
Goodwill		2,247	2,247
Other intangibles		304	306
Other noncurrent assets		437	459
Assets, Noncurrent		4,847	4,886
Total Assets		39,631	39,236
Current Liabilities
Short-term debt		291	992
Long-term debt due within one year		1	1
Accounts payable		903	1,104
Taxes		83	130
Interest		214	124
Dividends		186	173
Regulatory liabilities		223	225
Other current liabilities		474	591
Liabilities, Current, Total		2,375	3,340
Long-term Debt, Unclassified [Abstract]
Long-term Debt		15,753	14,611
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,195	3,105
Investment tax credits		113	114
Accrued pension obligations		255	275
Asset retirement obligations		127	133
Regulatory liabilities		3,351	3,340
Other deferred credits and noncurrent liabilities		404	385
Total Deferred Credits and Other Noncurrent Liabilities		7,445	7,352
Commitments and Contingent Liabilities
Equity
Common stock	[1]	8	8
Additional paid-in capital		12,314	12,326
Treasury Stock		(931)	(948)
Earnings reinvested		2,828	2,710
Accumulated other comprehensive loss		(161)	(163)
Total Equity		14,058	13,933
Total Liabilities and Equity		39,631	39,236
PPL Electric Utilities Corp [Member]
Assets, Current [Abstract]
Cash and cash equivalents		21	51
Accounts receivable (less reserve:)
Other		10	8
Unbilled revenues		119	149
Notes Receivable from affiliates		554	0
Fuel, materials and supplies		103	99
Prepayments		155	44
Regulatory Assets, Current		84	57
Other current assets		33	17
Total Current Assets		1,539	869
Property, Plant and Equipment
Regulated utility plant		15,740	15,575
Less:  accumulated depreciation - regulated utility plant		3,889	3,822
Regulated utility plant, net		11,851	11,753
Construction work in progress		744	680
Property, Plant and Equipment, net		12,595	12,433
Other Noncurrent Assets
Regulatory assets		592	598
Other intangibles		269	269
Other noncurrent assets		121	125
Assets, Noncurrent		982	992
Total Assets		15,116	14,294
Current Liabilities
Short-term debt		0	509
Taxes		3	51
Interest		78	43
Regulatory liabilities		90	91
Other current liabilities		82	100
Liabilities, Current, Total		709	1,292
Long-term Debt, Unclassified [Abstract]
Long-term Debt		5,211	4,567
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,608	1,573
Regulatory liabilities		839	836
Other deferred credits and noncurrent liabilities		110	123
Total Deferred Credits and Other Noncurrent Liabilities		2,557	2,532
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		4,715	4,040
Earnings reinvested		1,560	1,499
Total Equity		6,639	5,903
Total Liabilities and Equity		$ 15,116	$ 14,294
Financing Receivable, after Allowance for Credit Loss, Related Party, Type [Extensible Enumeration]		CEP Reserves, Inc	CEP Reserves, Inc
PPL Electric Utilities Corp [Member] | Related Party
Accounts receivable (less reserve:)
Customer		$ 10	$ 10
Notes Receivable from affiliates		554	0
Current Liabilities
Accounts payable		52	44
PPL Electric Utilities Corp [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		450	434
Current Liabilities
Accounts payable		404	454
Louisville Gas And Electric Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		8	18
Accounts receivable (less reserve:)
Other		24	17
Unbilled revenues		72	88
Fuel, materials and supplies		130	143
Prepayments		11	11
Regulatory Assets, Current		14	7
Other current assets		6	0
Total Current Assets		454	429
Property, Plant and Equipment
Regulated utility plant		7,715	7,669
Less:  accumulated depreciation - regulated utility plant		1,599	1,549
Regulated utility plant, net		6,116	6,120
Construction work in progress		342	312
Property, Plant and Equipment, net		6,458	6,432
Other Noncurrent Assets
Regulatory assets		388	395
Goodwill		389	389
Other intangibles		17	18
Other noncurrent assets		92	90
Assets, Noncurrent		886	892
Total Assets		7,798	7,753
Current Liabilities
Short-term debt		28	0
Taxes		15	41
Price risk management liabilities current		1	1
Interest		44	21
Current Customer Deposits		35	34
Regulatory liabilities		2	16
Asset Retirement Obligation, Current		13	13
Other current liabilities		32	47
Liabilities, Current, Total		374	337
Long-term Debt, Unclassified [Abstract]
Long-term Debt		2,469	2,469
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		782	776
Investment tax credits		30	31
Asset retirement obligations		71	72
Regulatory liabilities		824	827
Price risk management liabilities		4	6
Other deferred credits and noncurrent liabilities		67	63
Total Deferred Credits and Other Noncurrent Liabilities		1,778	1,775
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		1,942	1,993
Earnings reinvested		811	755
Total Equity		3,177	3,172
Total Liabilities and Equity		7,798	7,753
Louisville Gas And Electric Co [Member] | Related Party
Accounts receivable (less reserve:)
Customer		40	29
Notes Receivable from affiliates		28	0
Current Liabilities
Accounts payable		83	49
Louisville Gas And Electric Co [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		121	116
Current Liabilities
Accounts payable		121	115
Kentucky Utilities Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		12	14
Accounts receivable (less reserve:)
Customer		152	143
Other		19	12
Unbilled revenues		91	97
Fuel, materials and supplies		177	185
Prepayments		11	13
Regulatory Assets, Current		7	3
Other current assets		2	1
Total Current Assets		471	468
Property, Plant and Equipment
Regulated utility plant		10,038	9,896
Less:  accumulated depreciation - regulated utility plant		2,547	2,476
Regulated utility plant, net		7,491	7,420
Construction work in progress		594	604
Property, Plant and Equipment, net		8,085	8,024
Other Noncurrent Assets
Regulatory assets		435	439
Goodwill		607	607
Other intangibles		18	19
Other noncurrent assets		157	157
Assets, Noncurrent		1,217	1,222
Total Assets		9,773	9,714
Current Liabilities
Short-term debt		$ 45	$ 93
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Affiliated Entity [Member]
Notes Payable to affiliates		$ 37	$ 0
Taxes		15	32
Interest		56	24
Current Customer Deposits		38	35
Regulatory liabilities		6	1
Asset Retirement Obligation, Current		16	13
Other current liabilities		44	52
Liabilities, Current, Total		450	402
Long-term Debt, Unclassified [Abstract]
Long-term Debt		3,064	3,064
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		917	912
Investment tax credits		83	83
Asset retirement obligations		48	53
Regulatory liabilities		1,016	1,018
Other deferred credits and noncurrent liabilities		32	30
Total Deferred Credits and Other Noncurrent Liabilities		2,096	2,096
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		2,983	3,033
Earnings reinvested		872	811
Total Equity		4,163	4,152
Total Liabilities and Equity		9,773	9,714
Kentucky Utilities Co [Member] | Related Party
Current Liabilities
Accounts payable		123	72
Kentucky Utilities Co [Member] | Nonrelated Party
Current Liabilities
Accounts payable		$ 70	$ 80

[1] 1,560,000 shares authorized, 770,013 shares issued and 737,736 shares outstanding at March 31, 2024. 1,560,000 shares authorized, 770,013 shares issued and 737,130 shares outstanding at December 31, 2023.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at March 31, 2024 and December 31, 2023.

[3] 75,000 shares authorized; 21,294 shares issued and outstanding at March 31, 2024 and December 31, 2023.

[4] 80,000 shares authorized; 37,818 shares issued and outstanding at March 31, 2024 and December 31, 2023.