CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Sep. 30, 2023	Dec. 31, 2022
Assets, Current [Abstract]
Cash and cash equivalents		$ 353	$ 356
Accounts receivable (less reserve:)
Customer		1,019	896
Other		49	150
Unbilled revenues		328	552
Fuel, materials and supplies		488	443
Prepayments		143	92
Regulatory Assets, Current		315	258
Other current assets		59	77
Total Current Assets		2,754	2,824
Property, Plant and Equipment
Regulated utility plant		38,148	36,961
Less:  accumulated depreciation - regulated utility plant		8,976	8,352
Regulated utility plant, net		29,172	28,609
Non-regulated property, plant and equipment		70	92
Less:  accumulated depreciation - non-regulated property, plant and equipment		21	46
Non-regulated property, plant and equipment, net		49	46
Construction work in progress		1,849	1,583
Property, Plant and Equipment, net		31,070	30,238
Other Noncurrent Assets
Regulatory assets		1,787	1,819
Goodwill		2,247	2,248
Other intangibles		307	313
Other noncurrent assets		464	395
Assets, Noncurrent		4,805	4,775
Total Assets		38,629	37,837
Current Liabilities
Short-term debt		287	985
Long-term debt due within one year		91	354
Accounts payable		1,178	1,201
Taxes		109	124
Interest		220	97
Dividends		173	166
Regulatory liabilities		280	238
Other current liabilities		541	624
Liabilities, Current, Total		2,879	3,789
Long-term Debt, Unclassified [Abstract]
Long-term Debt		14,484	12,889
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,049	3,007
Investment tax credits		114	117
Accrued pension obligations		199	206
Asset retirement obligations		140	138
Regulatory liabilities		3,384	3,412
Other deferred credits and noncurrent liabilities		368	361
Total Deferred Credits and Other Noncurrent Liabilities		7,254	7,241
Commitments and Contingent Liabilities
Equity
Common stock	[1]	8	8
Additional paid-in capital		12,319	12,317
Treasury Stock		(948)	(967)
Earnings reinvested		2,775	2,681
Accumulated other comprehensive loss		(142)	(124)
Total Shareowners' Common Equity		14,012	13,915
Noncontrolling interests		0	3
Total Equity		14,012	13,918
Total Liabilities and Equity		38,629	37,837
PPL Electric Utilities Corp [Member]
Assets, Current [Abstract]
Cash and cash equivalents		56	25
Accounts receivable (less reserve:)
Other		6	12
Unbilled revenues		114	224
Notes Receivable from affiliates		0	0
Fuel, materials and supplies		102	69
Prepayments		63	34
Regulatory Assets, Current		52	13
Other current assets		32	22
Total Current Assets		876	759
Property, Plant and Equipment
Regulated utility plant		15,323	14,794
Less:  accumulated depreciation - regulated utility plant		3,761	3,544
Regulated utility plant, net		11,562	11,250
Construction work in progress		664	593
Property, Plant and Equipment, net		12,226	11,843
Other Noncurrent Assets
Regulatory assets		561	568
Other intangibles		268	269
Other noncurrent assets		138	126
Assets, Noncurrent		967	963
Total Assets		14,069	13,565
Current Liabilities
Short-term debt		187	145
Long-term debt due within one year		90	340
Taxes		12	36
Interest		85	35
Regulatory liabilities		83	85
Other current liabilities		92	86
Liabilities, Current, Total		972	1,223
Long-term Debt, Unclassified [Abstract]
Long-term Debt		4,566	4,146
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,576	1,514
Regulatory liabilities		838	820
Other deferred credits and noncurrent liabilities		92	111
Total Deferred Credits and Other Noncurrent Liabilities		2,506	2,445
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		4,209	4,084
Earnings reinvested		1,452	1,303
Total Equity		6,025	5,751
Total Liabilities and Equity		14,069	13,565
PPL Electric Utilities Corp [Member] | Related Party
Accounts receivable (less reserve:)
Customer		4	3
Current Liabilities
Accounts payable		30	16
PPL Electric Utilities Corp [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		447	357
Current Liabilities
Accounts payable		393	480
Louisville Gas And Electric Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		8	93
Accounts receivable (less reserve:)
Other		20	13
Unbilled revenues		69	112
Fuel, materials and supplies		141	166
Prepayments		15	13
Regulatory Assets, Current		5	23
Other current assets		3	2
Total Current Assets		396	616
Property, Plant and Equipment
Regulated utility plant		7,591	7,429
Less:  accumulated depreciation - regulated utility plant		1,495	1,355
Regulated utility plant, net		6,096	6,074
Construction work in progress		305	268
Property, Plant and Equipment, net		6,401	6,342
Other Noncurrent Assets
Regulatory assets		380	373
Goodwill		389	389
Other intangibles		19	24
Other noncurrent assets		75	66
Assets, Noncurrent		863	852
Total Assets		7,660	7,810
Current Liabilities
Short-term debt		$ 0	$ 179
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Affiliated Entity [Member]
Notes Payable to affiliates		$ 6	$ 0
Taxes		37	41
Price risk management liabilities current		0	1
Interest		44	15
Current Customer Deposits		34	32
Regulatory liabilities		23	7
Asset Retirement Obligation, Current		12	13
Other current liabilities		48	46
Liabilities, Current, Total		356	559
Long-term Debt, Unclassified [Abstract]
Long-term Debt		2,404	2,307
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		781	771
Investment tax credits		31	31
Asset retirement obligations		74	73
Regulatory liabilities		830	833
Price risk management liabilities		3	6
Other deferred credits and noncurrent liabilities		61	64
Total Deferred Credits and Other Noncurrent Liabilities		1,780	1,778
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		1,946	2,087
Earnings reinvested		750	655
Total Equity		3,120	3,166
Total Liabilities and Equity		7,660	7,810
Louisville Gas And Electric Co [Member] | Related Party
Accounts receivable (less reserve:)
Customer		19	37
Current Liabilities
Accounts payable		48	60
Louisville Gas And Electric Co [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		116	157
Current Liabilities
Accounts payable		104	165
Kentucky Utilities Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		8	21
Accounts receivable (less reserve:)
Customer		150	158
Other		10	13
Unbilled revenues		86	114
Fuel, materials and supplies		176	167
Prepayments		15	14
Regulatory Assets, Current		7	32
Other current assets		0	1
Total Current Assets		452	520
Property, Plant and Equipment
Regulated utility plant		9,794	9,515
Less:  accumulated depreciation - regulated utility plant		2,404	2,201
Regulated utility plant, net		7,390	7,314
Construction work in progress		597	522
Property, Plant and Equipment, net		7,987	7,836
Other Noncurrent Assets
Regulatory assets		442	442
Goodwill		607	607
Other intangibles		19	21
Other noncurrent assets		128	116
Assets, Noncurrent		1,196	1,186
Total Assets		9,635	9,542
Current Liabilities
Short-term debt		25	101
Long-term debt due within one year		$ 0	$ 13
Notes Payable, Related Party, Type [Extensible Enumeration]		Affiliated Entity [Member]	Affiliated Entity [Member]
Notes Payable to affiliates		$ 21	$ 0
Taxes		35	26
Interest		56	19
Current Customer Deposits		35	33
Regulatory liabilities		11	6
Asset Retirement Obligation, Current		16	26
Other current liabilities		53	51
Liabilities, Current, Total		404	499
Long-term Debt, Unclassified [Abstract]
Long-term Debt		3,004	2,907
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		909	896
Investment tax credits		84	85
Asset retirement obligations		58	56
Regulatory liabilities		1,022	1,029
Other deferred credits and noncurrent liabilities		31	32
Total Deferred Credits and Other Noncurrent Liabilities		2,104	2,098
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		3,011	3,041
Earnings reinvested		804	689
Total Equity		4,123	4,038
Total Liabilities and Equity		9,635	9,542
Kentucky Utilities Co [Member] | Related Party
Current Liabilities
Accounts payable		70	101
Kentucky Utilities Co [Member] | Nonrelated Party
Current Liabilities
Accounts payable		$ 82	$ 123

[1] 1,560,000 shares authorized, 770,013 shares issued and 737,124 shares outstanding at September 30, 2023. 1,560,000 shares authorized, 770,013 shares issued and 736,487 shares outstanding at December 31, 2022.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at September 30, 2023 and December 31, 2022.

[3] 75,000 shares authorized; 21,294 shares issued and outstanding at September 30, 2023 and December 31, 2022.

[4] 80,000 shares authorized; 37,818 shares issued and outstanding at September 30, 2023 and December 31, 2022.