CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Dec. 31, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents		$ 815	$ 621
Accounts receivable (less reserve:)
Customer		687	663
Other		105	107
Unbilled revenues		504	496
Fuel, materials and supplies		332	303
Prepayments		79	70
Price risk management assets		147	109
Regulatory assets		67	36
Other current assets		98	63
Total Current Assets		2,767	2,432
Property, Plant and Equipment
Regulated utility plant		42,709	39,734
Less: accumulated depreciation - regulated utility plant		8,055	7,310
Regulated utility plant, net		34,654	32,424
Non-regulated property, plant and equipment		357	355
Less: accumulated depreciation - non-regulated property, plant and equipment		109	101
Non-regulated property, plant and equipment, net		248	254
Construction work in progress		1,580	1,780
Property, Plant and Equipment, net		36,482	34,458
Other Noncurrent Assets
Regulatory assets		1,492	1,673
Goodwill		3,198	3,162
Other intangibles		742	716
Pension benefit asset		464	535
Price risk management assets		149	228
Other noncurrent assets		386	192
Total Other Noncurrent Assets		6,431	6,506
Total Assets		45,680	43,396
Current Liabilities
Short-term debt		1,151	1,430
Long-term debt due within one year		1,172	530
Accounts payable		956	989
Taxes		99	110
Interest		294	278
Dividends		317	296
Customer deposits		261	257
Regulatory liabilities		115	122
Other current liabilities		535	551
Total Current Liabilities		4,900	4,563
Long-term Debt [Abstract]
Long-term Debt		20,721	20,069
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,088	2,796
Investment tax credits		124	126
Accrued pension obligations		587	771
Asset retirement obligations		212	264
Regulatory liabilities		2,572	2,714
Other deferred credits and noncurrent liabilities		485	436
Total Deferred Credits and Other Noncurrent Liabilities		7,068	7,107
Commitments and Contingent Liabilities
Equity
Common stock	[1]	8	7
Additional paid-in capital		12,214	11,021
Earnings reinvested		5,127	4,593
Accumulated other comprehensive loss		(4,358)	(3,964)
Total Equity		12,991	11,657
Total Liabilities and Equity		45,680	43,396
PPL Electric Utilities Corp [Member]
Current Assets
Cash and cash equivalents		262	267
Accounts receivable (less reserve:)
Customer		258	264
Other		22	38
Accounts receivable from affiliates		11	11
Unbilled revenues		134	120
Fuel, materials and supplies		33	25
Prepayments		6	5
Regulatory assets		26	11
Other current assets		9	9
Total Current Assets		761	750
Property, Plant and Equipment
Regulated utility plant		12,589	11,637
Less: accumulated depreciation - regulated utility plant		3,078	2,856
Regulated utility plant, net		9,511	8,781
Construction work in progress		597	586
Property, Plant and Equipment, net		10,108	9,367
Other Noncurrent Assets
Regulatory assets		726	824
Other intangibles		263	260
Other noncurrent assets		43	42
Total Other Noncurrent Assets		1,032	1,126
Total Assets		11,901	11,243
Current Liabilities
Long-term debt due within one year		0	0
Accounts payable		438	418
Accounts payable to affiliates		32	25
Taxes		13	12
Interest		41	37
Regulatory liabilities		96	74
Other current liabilities		93	101
Total Current Liabilities		713	667
Long-term Debt [Abstract]
Long-term Debt		3,985	3,694
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,447	1,320
Accrued pension obligations		179	282
Regulatory liabilities		599	675
Other deferred credits and noncurrent liabilities		146	144
Total Deferred Credits and Other Noncurrent Liabilities		2,371	2,421
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		3,558	3,158
Earnings reinvested		910	939
Total Equity		4,832	4,461
Total Liabilities and Equity		11,901	11,243
LG And E And KU Energy LLC [Member]
Current Assets
Cash and cash equivalents		27	24
Accounts receivable (less reserve:)
Customer		260	239
Other		71	63
Unbilled revenues		164	169
Fuel, materials and supplies		250	248
Prepayments		30	25
Regulatory assets		41	25
Other current assets		2	0
Total Current Assets		845	793
Property, Plant and Equipment
Regulated utility plant		14,646	13,721
Less: accumulated depreciation - regulated utility plant		2,356	2,125
Regulated utility plant, net		12,290	11,596
Construction work in progress		794	1,018
Property, Plant and Equipment, net		13,084	12,614
Other Noncurrent Assets
Regulatory assets		766	849
Goodwill		996	996
Other intangibles		69	78
Other noncurrent assets		171	82
Total Other Noncurrent Assets		2,002	2,005
Total Assets		15,931	15,412
Current Liabilities
Short-term debt		388	514
Long-term debt due within one year		975	530
Notes payable with affiliates		150	113
Accounts payable		316	366
Accounts payable to affiliates		11	9
Taxes		58	63
Interest		40	32
Asset Retirement Obligations		70	82
Price risk management liabilities		4	4
Customer deposits		62	61
Regulatory liabilities		19	48
Other current liabilities		153	126
Total Current Liabilities		2,246	1,948
Long-term Debt [Abstract]
Long-term debt		4,377	4,322
Long-term debt to affiliate		650	650
Long-term Debt		5,027	4,972
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,069	956
Investment tax credits		124	126
Price risk management liabilities		17	16
Accrued pension obligations		233	282
Asset retirement obligations		145	214
Regulatory liabilities		1,973	2,039
Other deferred credits and noncurrent liabilities		155	136
Total Deferred Credits and Other Noncurrent Liabilities		3,716	3,769
Commitments and Contingent Liabilities
Equity
Accumulated other comprehensive loss		(93)	(89)
Member's Equity		4,942	4,723
Total Liabilities and Equity		15,931	15,412
Louisville Gas And Electric Co [Member]
Current Assets
Cash and cash equivalents		15	10
Accounts receivable (less reserve:)
Customer		121	110
Other		41	30
Accounts receivable from affiliates		18	24
Unbilled revenues		76	77
Fuel, materials and supplies		122	127
Prepayments		14	12
Regulatory assets		25	21
Other current assets		1	0
Total Current Assets		433	411
Property, Plant and Equipment
Regulated utility plant		6,372	5,816
Less: accumulated depreciation - regulated utility plant		846	741
Regulated utility plant, net		5,526	5,075
Construction work in progress		297	514
Property, Plant and Equipment, net		5,823	5,589
Other Noncurrent Assets
Regulatory assets		380	431
Goodwill		389	389
Other intangibles		41	47
Other noncurrent assets		67	16
Total Other Noncurrent Assets		877	883
Total Assets		7,133	6,883
Current Liabilities
Short-term debt		238	279
Long-term debt due within one year		0	434
Accounts payable		172	172
Accounts payable to affiliates		31	26
Taxes		33	26
Interest		15	11
Asset Retirement Obligations		24	23
Price risk management liabilities		4	4
Customer deposits		31	29
Regulatory liabilities		2	17
Other current liabilities		47	39
Total Current Liabilities		597	1,060
Long-term Debt [Abstract]
Long-term Debt		2,005	1,375
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		697	628
Investment tax credits		34	34
Price risk management liabilities		17	16
Asset retirement obligations		49	80
Regulatory liabilities		883	915
Other deferred credits and noncurrent liabilities		89	88
Total Deferred Credits and Other Noncurrent Liabilities		1,769	1,761
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		1,820	1,795
Earnings reinvested		518	468
Total Equity		2,762	2,687
Total Liabilities and Equity		7,133	6,883
Kentucky Utilities Co [Member]
Current Assets
Cash and cash equivalents		12	14
Accounts receivable (less reserve:)
Customer		139	129
Other		27	34
Unbilled revenues		88	92
Fuel, materials and supplies		128	121
Prepayments		14	11
Regulatory assets		16	4
Other current assets		1	0
Total Current Assets		425	405
Property, Plant and Equipment
Regulated utility plant		8,262	7,895
Less: accumulated depreciation - regulated utility plant		1,507	1,382
Regulated utility plant, net		6,755	6,513
Construction work in progress		496	503
Property, Plant and Equipment, net		7,251	7,016
Other Noncurrent Assets
Regulatory assets		386	418
Goodwill		607	607
Other intangibles		28	31
Other noncurrent assets		128	63
Total Other Noncurrent Assets		1,149	1,119
Total Assets		8,825	8,540
Current Liabilities
Short-term debt		150	235
Long-term debt due within one year		500	96
Accounts payable		121	171
Accounts payable to affiliates		52	53
Taxes		26	24
Interest		20	16
Asset Retirement Obligations		46	59
Customer deposits		31	32
Regulatory liabilities		17	31
Other current liabilities		51	35
Total Current Liabilities		1,014	752
Long-term Debt [Abstract]
Long-term Debt		2,123	2,225
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		792	735
Investment tax credits		90	92
Asset retirement obligations		96	134
Regulatory liabilities		1,090	1,124
Other deferred credits and noncurrent liabilities		46	36
Total Deferred Credits and Other Noncurrent Liabilities		2,114	2,121
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		2,729	2,661
Earnings reinvested		537	473
Total Equity		3,574	3,442
Total Liabilities and Equity		$ 8,825	$ 8,540

[1] 1,560,000 shares authorized; 767,233 and 720,323 shares issued and outstanding at December 31, 2019 and December 31, 2018.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at December 31, 2019 and December 31, 2018

[3] 75,000 shares authorized; 21,294 shares issued and outstanding at December 31, 2019 and December 31, 2018.

[4] 80,000 shares authorized; 37,818 shares issued and outstanding at December 31, 2019 and December 31, 2018.