CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Mar. 31, 2023	Dec. 31, 2022
Assets, Current [Abstract]
Cash and cash equivalents		$ 460	$ 356
Accounts receivable (less reserve:)
Customer		1,033	896
Other		121	150
Unbilled revenues		443	552
Fuel, materials and supplies		434	443
Prepayments		175	92
Regulatory Assets, Current		313	258
Other current assets		59	77
Total Current Assets		3,038	2,824
Property, Plant and Equipment
Regulated utility plant		37,276	36,961
Less:  accumulated depreciation - regulated utility plant		8,580	8,352
Regulated utility plant, net		28,696	28,609
Non-regulated property, plant and equipment		63	92
Less:  accumulated depreciation - non-regulated property, plant and equipment		22	46
Non-regulated property, plant and equipment, net		41	46
Construction work in progress		1,720	1,583
Property, Plant and Equipment, net		30,457	30,238
Other Noncurrent Assets
Regulatory assets		1,820	1,819
Goodwill		2,248	2,248
Other intangibles		310	313
Other noncurrent assets		429	395
Assets, Noncurrent		4,807	4,775
Total Assets		38,302	37,837
Current Liabilities
Short-term debt		0	985
Long-term debt due within one year		104	354
Accounts payable		1,133	1,201
Taxes		82	124
Interest		164	97
Dividends		173	166
Regulatory liabilities		282	238
Other current liabilities		542	624
Liabilities, Current, Total		2,480	3,789
Long-term Debt, Unclassified [Abstract]
Long-term Debt		14,481	12,889
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,092	3,007
Investment tax credits		116	117
Accrued pension obligations		185	206
Asset retirement obligations		127	138
Regulatory liabilities		3,419	3,412
Other deferred credits and noncurrent liabilities		366	361
Total Deferred Credits and Other Noncurrent Liabilities		7,305	7,241
Commitments and Contingent Liabilities
Equity
Common stock	[1]	8	8
Additional paid-in capital		12,310	12,317
Treasury Stock		(950)	(967)
Earnings reinvested		2,788	2,681
Accumulated other comprehensive loss		(123)	(124)
Total Shareowners' Common Equity		14,033	13,915
Noncontrolling interests		3	3
Total Equity		14,036	13,918
Total Liabilities and Equity		38,302	37,837
PPL Electric Utilities Corp [Member]
Assets, Current [Abstract]
Cash and cash equivalents		56	25
Accounts receivable (less reserve:)
Other		9	12
Unbilled revenues		204	224
Notes Receivable from affiliates		0	0
Fuel, materials and supplies		86	69
Prepayments		111	34
Regulatory Assets, Current		34	13
Other current assets		25	22
Total Current Assets		1,017	759
Property, Plant and Equipment
Regulated utility plant		14,921	14,794
Less:  accumulated depreciation - regulated utility plant		3,611	3,544
Regulated utility plant, net		11,310	11,250
Construction work in progress		629	593
Property, Plant and Equipment, net		11,939	11,843
Other Noncurrent Assets
Regulatory assets		560	568
Other intangibles		268	269
Other noncurrent assets		137	126
Assets, Noncurrent		965	963
Total Assets		13,921	13,565
Current Liabilities
Short-term debt		0	145
Long-term debt due within one year		90	340
Taxes		0	36
Interest		50	35
Regulatory liabilities		94	85
Other current liabilities		105	86
Liabilities, Current, Total		874	1,223
Long-term Debt, Unclassified [Abstract]
Long-term Debt		4,566	4,146
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,536	1,514
Regulatory liabilities		832	820
Other deferred credits and noncurrent liabilities		98	111
Total Deferred Credits and Other Noncurrent Liabilities		2,466	2,445
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		4,284	4,084
Earnings reinvested		1,367	1,303
Total Equity		6,015	5,751
Total Liabilities and Equity		$ 13,921	$ 13,565
Financing Receivable, after Allowance for Credit Loss, Related and Nonrelated Party Status [Extensible Enumeration]		Related Party	Related Party
PPL Electric Utilities Corp [Member] | Related Party
Accounts receivable (less reserve:)
Customer		$ 4	$ 3
Current Liabilities
Accounts payable		43	16
PPL Electric Utilities Corp [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		488	357
Current Liabilities
Accounts payable		492	480
Louisville Gas And Electric Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		28	93
Accounts receivable (less reserve:)
Other		17	13
Unbilled revenues		79	112
Notes Receivable from affiliates		9	0
Fuel, materials and supplies		125	166
Prepayments		14	13
Regulatory Assets, Current		8	23
Other current assets		0	2
Total Current Assets		427	616
Property, Plant and Equipment
Regulated utility plant		7,444	7,429
Less:  accumulated depreciation - regulated utility plant		1,403	1,355
Regulated utility plant, net		6,041	6,074
Construction work in progress		317	268
Property, Plant and Equipment, net		6,358	6,342
Other Noncurrent Assets
Regulatory assets		378	373
Goodwill		389	389
Other intangibles		22	24
Other noncurrent assets		71	66
Assets, Noncurrent		860	852
Total Assets		7,645	7,810
Current Liabilities
Short-term debt		0	179
Notes Payable to affiliates		0	0
Taxes		14	41
Price risk management liabilities current		1	1
Interest		33	15
Current Customer Deposits		33	32
Regulatory liabilities		13	7
Asset Retirement Obligation, Current		14	13
Other current liabilities		35	46
Liabilities, Current, Total		365	559
Long-term Debt, Unclassified [Abstract]
Long-term Debt		2,404	2,307
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		775	771
Investment tax credits		31	31
Asset retirement obligations		65	73
Regulatory liabilities		834	833
Price risk management liabilities		7	6
Other deferred credits and noncurrent liabilities		63	64
Total Deferred Credits and Other Noncurrent Liabilities		1,775	1,778
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		1,967	2,087
Earnings reinvested		710	655
Total Equity		3,101	3,166
Total Liabilities and Equity		$ 7,645	$ 7,810
Financing Receivable, after Allowance for Credit Loss, Related and Nonrelated Party Status [Extensible Enumeration]		Related Party	Related Party
Notes Payable, Related and Nonrelated Party Status [Extensible Enumeration]		Related Party	Related Party
Louisville Gas And Electric Co [Member] | Related Party
Accounts receivable (less reserve:)
Customer		$ 23	$ 37
Current Liabilities
Accounts payable		90	60
Louisville Gas And Electric Co [Member] | Nonrelated Party
Accounts receivable (less reserve:)
Customer		124	157
Current Liabilities
Accounts payable		132	165
Kentucky Utilities Co [Member]
Assets, Current [Abstract]
Cash and cash equivalents		9	21
Accounts receivable (less reserve:)
Customer		140	158
Other		11	13
Unbilled revenues		89	114
Fuel, materials and supplies		175	167
Prepayments		12	14
Regulatory Assets, Current		23	32
Other current assets		0	1
Total Current Assets		459	520
Property, Plant and Equipment
Regulated utility plant		9,575	9,515
Less:  accumulated depreciation - regulated utility plant		2,275	2,201
Regulated utility plant, net		7,300	7,314
Construction work in progress		595	522
Property, Plant and Equipment, net		7,895	7,836
Other Noncurrent Assets
Regulatory assets		447	442
Goodwill		607	607
Other intangibles		20	21
Other noncurrent assets		124	116
Assets, Noncurrent		1,198	1,186
Total Assets		9,552	9,542
Current Liabilities
Short-term debt		0	101
Long-term debt due within one year		13	13
Notes Payable to affiliates		9	0
Taxes		15	26
Interest		45	19
Current Customer Deposits		34	33
Regulatory liabilities		5	6
Asset Retirement Obligation, Current		24	26
Other current liabilities		50	51
Liabilities, Current, Total		409	499
Long-term Debt, Unclassified [Abstract]
Long-term Debt		3,003	2,907
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		902	896
Investment tax credits		84	85
Asset retirement obligations		54	56
Regulatory liabilities		1,028	1,029
Other deferred credits and noncurrent liabilities		35	32
Total Deferred Credits and Other Noncurrent Liabilities		2,103	2,098
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		2,987	3,041
Earnings reinvested		742	689
Total Equity		4,037	4,038
Total Liabilities and Equity		$ 9,552	$ 9,542
Notes Payable, Related and Nonrelated Party Status [Extensible Enumeration]		Related Party	Related Party
Kentucky Utilities Co [Member] | Related Party
Current Liabilities
Accounts payable		$ 101	$ 101
Kentucky Utilities Co [Member] | Nonrelated Party
Current Liabilities
Accounts payable		$ 113	$ 123

[1] 1,560,000 shares authorized, 770,013 shares issued and 737,067 shares outstanding at March 31, 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 March 31, 2023 and December 31, 2022.

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

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