CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Assets
Cash and cash equivalents		$ 676	$ 341
Accounts receivable (less reserve:)
Customer		617	666
Other		96	46
Unbilled revenues		405	480
Fuel, materials and supplies		323	356
Prepayments		101	63
Price risk management assets		57	63
Regulatory assets		34	39
Other current assets		56	52
Total Current Assets		2,331	2,067
Property, Plant and Equipment
Regulated utility plant		36,678	34,674
Less: accumulated depreciation - regulated utility plant		6,624	6,013
Regulated utility plant, net		30,054	28,661
Non-regulated property, plant and equipment		422	413
Less: accumulated depreciation - non-regulated property, plant and equipment		154	134
Non-regulated property, plant and equipment, net		268	279
Construction work in progress		1,494	1,134
Property, Plant and Equipment, net		31,816	30,074
Other Noncurrent Assets
Regulatory assets		1,869	1,918
Goodwill		3,134	3,060
Other intangibles		666	700
Pension benefit asset		532	9
Price risk management assets		267	336
Other noncurrent assets		143	151
Total Other Noncurrent Assets		6,611	6,174
Total Assets		40,758	38,315
Current Liabilities
Short-term debt		1,211	923
Long-term debt due within one year		448	518
Accounts payable		838	820
Taxes		110	101
Interest		322	270
Dividends		272	259
Customer deposits		291	276
Regulatory liabilities		87	101
Other current liabilities		570	569
Total Current Liabilities		4,149	3,837
Long-term Debt
Long-term Debt		19,110	17,808
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		4,224	3,889
Investment tax credits		130	132
Accrued pension obligations		796	1,001
Asset retirement obligations		312	428
Regulatory liabilities		873	899
Other deferred credits and noncurrent liabilities		472	422
Total Deferred Credits and Other Noncurrent Liabilities		6,807	6,771
Commitments and Contingent Liabilities
Equity
Common stock	[1]	7	7
Additional paid-in capital		10,122	9,841
Earnings reinvested		4,066	3,829
Accumulated other comprehensive loss		(3,503)	(3,778)
Total Equity		10,692	9,899
Total Liabilities and Equity		40,758	38,315
PPL Electric Utilities Corp [Member]
Assets
Cash and cash equivalents		243	13
Accounts receivable (less reserve:)
Customer		275	272
Other		10	21
Accounts receivable from affiliates		1	0
Notes receivable from affiliate		2	0
Unbilled revenues		84	114
Fuel, materials and supplies		31	32
Prepayments		40	9
Regulatory assets		14	19
Other current assets		11	8
Total Current Assets		711	488
Property, Plant and Equipment
Regulated utility plant		10,449	9,654
Less: accumulated depreciation - regulated utility plant		2,880	2,714
Regulated utility plant, net		7,569	6,940
Construction work in progress		699	641
Property, Plant and Equipment, net		8,268	7,581
Other Noncurrent Assets
Regulatory assets		1,073	1,094
Other intangibles		256	251
Other noncurrent assets		15	12
Total Other Noncurrent Assets		1,344	1,357
Total Assets		10,323	9,426
Current Liabilities
Short-term debt		0	295
Long-term debt due within one year		0	224
Accounts payable		397	367
Accounts payable to affiliates		38	42
Taxes		22	12
Interest		38	34
Regulatory liabilities		72	83
Other current liabilities		90	101
Total Current Liabilities		657	1,158
Long-term Debt
Long-term Debt		3,298	2,607
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		2,036	1,899
Accrued pension obligations		257	281
Regulatory liabilities		0	0
Other deferred credits and noncurrent liabilities		89	90
Total Deferred Credits and Other Noncurrent Liabilities		2,382	2,270
Commitments and Contingent Liabilities
Equity
Common stock	[2]	364	364
Additional paid-in capital		2,729	2,154
Earnings reinvested		893	873
Total Equity		3,986	3,391
Total Liabilities and Equity		10,323	9,426
LG And E And KU Energy LLC [Member]
Assets
Cash and cash equivalents		40	13
Accounts receivable (less reserve:)
Customer		215	235
Other		43	17
Accounts receivable from affiliates		1	0
Unbilled revenues		151	170
Fuel, materials and supplies		264	297
Prepayments		27	24
Regulatory assets		20	20
Other current assets		8	4
Total Current Assets		769	780
Property, Plant and Equipment
Regulated utility plant		12,906	12,746
Less: accumulated depreciation - regulated utility plant		1,685	1,465
Regulated utility plant, net		11,221	11,281
Construction work in progress		574	317
Property, Plant and Equipment, net		11,795	11,598
Other Noncurrent Assets
Regulatory assets		796	824
Goodwill		996	996
Other intangibles		88	95
Other noncurrent assets		71	78
Total Other Noncurrent Assets		1,951	1,993
Total Assets		14,515	14,371
Current Liabilities
Short-term debt		190	185
Long-term debt due within one year		98	194
Notes payable with affiliate		159	163
Accounts payable		283	251
Accounts payable to affiliates		8	6
Taxes		52	39
Price risk management liabilities		5	4
Interest		73	32
Customer deposits		57	56
Regulatory liabilities		15	18
Asset retirement obligations		94	60
Other current liabilities		125	119
Total Current Liabilities		1,159	1,127
Long-term Debt
Long-term debt		4,570	4,471
Long-term debt to affiliate		400	400
Long-term Debt		4,970	4,871
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,909	1,735
Investment tax credits		130	132
Accrued pension obligations		345	350
Asset retirement obligations		261	373
Regulatory liabilities		873	899
Price risk management liabilities		24	27
Other deferred credits and noncurrent liabilities		178	190
Total Deferred Credits and Other Noncurrent Liabilities		3,720	3,706
Commitments and Contingent Liabilities
Equity
Accumulated other comprehensive loss		(77)	(70)
Member's Equity		4,666	4,667
Total Liabilities and Equity		14,515	14,371
Louisville Gas And Electric Co [Member]
Assets
Cash and cash equivalents		9	5
Accounts receivable (less reserve:)
Customer		96	109
Other		14	11
Accounts receivable from affiliates		22	28
Unbilled revenues		64	75
Fuel, materials and supplies		137	143
Prepayments		15	12
Regulatory assets		11	9
Other current assets		2	1
Total Current Assets		370	393
Property, Plant and Equipment
Regulated utility plant		5,447	5,357
Less: accumulated depreciation - regulated utility plant		575	498
Regulated utility plant, net		4,872	4,859
Construction work in progress		279	133
Property, Plant and Equipment, net		5,151	4,992
Other Noncurrent Assets
Regulatory assets		413	450
Goodwill		389	389
Other intangibles		54	59
Other noncurrent assets		13	17
Total Other Noncurrent Assets		869	915
Total Assets		6,390	6,300
Current Liabilities
Short-term debt		190	169
Long-term debt due within one year		98	194
Notes payable with affiliate		10	0
Accounts payable		166	148
Accounts payable to affiliates		17	26
Taxes		25	40
Price risk management liabilities		5	4
Interest		23	11
Customer deposits		27	27
Regulatory liabilities		5	5
Asset retirement obligations		33	41
Other current liabilities		46	36
Total Current Liabilities		645	701
Long-term Debt
Long-term Debt		1,521	1,423
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,073	974
Investment tax credits		36	36
Accrued pension obligations		47	53
Asset retirement obligations		85	104
Regulatory liabilities		388	419
Price risk management liabilities		24	27
Other deferred credits and noncurrent liabilities		84	87
Total Deferred Credits and Other Noncurrent Liabilities		1,737	1,700
Commitments and Contingent Liabilities
Equity
Common stock	[3]	424	424
Additional paid-in capital		1,682	1,682
Earnings reinvested		381	370
Total Equity		2,487	2,476
Total Liabilities and Equity		6,390	6,300
Kentucky Utilities Co [Member]
Assets
Cash and cash equivalents		31	7
Accounts receivable (less reserve:)
Customer		119	126
Other		28	5
Accounts receivable from affiliates		1	0
Notes receivable from affiliate		10	0
Unbilled revenues		87	95
Fuel, materials and supplies		127	154
Prepayments		14	12
Regulatory assets		9	11
Other current assets		6	3
Total Current Assets		432	413
Property, Plant and Equipment
Regulated utility plant		7,452	7,382
Less: accumulated depreciation - regulated utility plant		1,110	965
Regulated utility plant, net		6,342	6,417
Construction work in progress		293	181
Property, Plant and Equipment, net		6,635	6,598
Other Noncurrent Assets
Regulatory assets		383	374
Goodwill		607	607
Other intangibles		34	36
Other noncurrent assets		55	57
Total Other Noncurrent Assets		1,079	1,074
Total Assets		8,146	8,085
Current Liabilities
Short-term debt		0	16
Accounts payable		105	78
Accounts payable to affiliates		42	56
Taxes		24	45
Interest		38	16
Customer deposits		30	29
Regulatory liabilities		10	13
Asset retirement obligations		61	19
Other current liabilities		35	36
Total Current Liabilities		345	308
Long-term Debt
Long-term Debt		2,328	2,327
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,289	1,170
Investment tax credits		94	96
Accrued pension obligations		37	62
Asset retirement obligations		176	269
Regulatory liabilities		485	480
Other deferred credits and noncurrent liabilities		43	50
Total Deferred Credits and Other Noncurrent Liabilities		2,124	2,127
Commitments and Contingent Liabilities
Equity
Common stock	[4]	308	308
Additional paid-in capital		2,616	2,616
Earnings reinvested		425	400
Accumulated other comprehensive loss		0	(1)
Total Equity		3,349	3,323
Total Liabilities and Equity		$ 8,146	$ 8,085

[1] 1,560,000 shares authorized; 688,133 and 679,731 shares issued and outstanding at September 30, 2017 and December 31, 2016.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at September 30, 2017 and December 31, 2016.

[3] 75,000 shares authorized; 21,294 shares issued and outstanding at September 30, 2017 and December 31, 2016.

[4] 80,000 shares authorized; 37,818 shares issued and outstanding at September 30, 2017 and December 31, 2016.