CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions		Dec. 31, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents		$ 341	$ 836
Accounts receivable (less reserve:)
Customer		666	673
Other		46	59
Unbilled revenues		480	453
Fuel, materials and supplies		356	357
Prepayments		63	66
Price risk management assets		63	139
Regulatory assets	[1]	39	48
Other current assets		52	63
Total Current Assets		2,067	2,646
Property, Plant and Equipment
Regulated utility plant		34,674	34,399
Less: accumulated depreciation - regulated utility plant		6,013	5,683
Regulated utility plant, net		28,661	28,716
Non-regulated property, plant and equipment		413	516
Less: accumulated depreciation - non-regulated property, plant and equipment		134	165
Non-regulated property, plant and equipment, net		279	351
Construction work in progress		1,134	1,315
Property, Plant and Equipment, net		30,074	30,382
Other Noncurrent Assets
Regulatory assets		1,918	1,733
Goodwill	[2]	3,060	3,550
Other intangibles		700	679
Price risk management assets		336	156
Other noncurrent assets		160	155
Total Other Noncurrent Assets		6,174	6,273
Total Assets		38,315	39,301
Current Liabilities
Short-term debt		923	916
Long-term debt due within one year		518	485
Accounts payable		820	812
Taxes		101	85
Interest		270	303
Dividends		259	255
Customer deposits		276	326
Regulatory liabilities		101	145
Other current liabilities		569	549
Total Current Liabilities		3,837	3,876
Long-term Debt		17,808	18,563
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		3,889	3,440
Investment tax credits		132	128
Accrued pension obligations		1,001	1,405
Asset retirement obligations		428	536
Regulatory liabilities		899	945
Other deferred credits and noncurrent liabilities		422	489
Total Deferred Credits and Other Noncurrent Liabilities		6,771	6,943
Commitments and Contingent Liabilities
Equity
Common stock	[3]	7	7
Additional paid-in capital		9,841	9,687
Earnings reinvested		3,829	2,953
Accumulated other comprehensive income (loss)		(3,778)	(2,728)
Total Equity		9,899	9,919
Total Liabilities and Equity		38,315	39,301
PPL Electric Utilities Corp [Member]
Current Assets
Cash and cash equivalents		13	47
Accounts receivable (less reserve:)
Customer		272	286
Other		21	10
Unbilled revenues		114	91
Fuel, materials and supplies		32	34
Prepayments		9	66
Regulatory assets		19	13
Other current assets		8	8
Total Current Assets		488	555
Property, Plant and Equipment
Regulated utility plant		9,654	8,734
Less: accumulated depreciation - regulated utility plant		2,714	2,573
Regulated utility plant, net		6,940	6,161
Construction work in progress		641	530
Property, Plant and Equipment, net		7,581	6,691
Other Noncurrent Assets
Regulatory assets		1,094	1,006
Other intangibles		251	244
Other noncurrent assets		12	15
Total Other Noncurrent Assets		1,357	1,265
Total Assets		9,426	8,511
Current Liabilities
Short-term debt		295	0
Long-term debt due within one year		224	0
Accounts payable		367	288
Accounts payable to affiliates		42	35
Taxes		12	24
Interest		34	37
Customer deposits		23	31
Regulatory liabilities		83	113
Other current liabilities		78	77
Total Current Liabilities		1,158	605
Long-term Debt		2,607	2,828
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,899	1,663
Accrued pension obligations		281	183
Regulatory liabilities		0	22
Other deferred credits and noncurrent liabilities		90	91
Total Deferred Credits and Other Noncurrent Liabilities		2,270	1,959
Commitments and Contingent Liabilities
Equity
Common stock	[4]	364	364
Additional paid-in capital		2,154	1,934
Earnings reinvested		873	821
Total Equity		3,391	3,119
Total Liabilities and Equity		9,426	8,511
LG And E And KU Energy LLC [Member]
Current Assets
Cash and cash equivalents		13	30
Accounts receivable (less reserve:)
Customer		235	209
Other		17	17
Unbilled revenues		170	147
Fuel, materials and supplies		297	298
Prepayments		24	23
Regulatory assets		20	35
Other current assets		4	6
Total Current Assets		780	765
Property, Plant and Equipment
Regulated utility plant		12,746	11,906
Less: accumulated depreciation - regulated utility plant		1,465	1,163
Regulated utility plant, net		11,281	10,743
Construction work in progress		317	660
Property, Plant and Equipment, net		11,598	11,403
Other Noncurrent Assets
Regulatory assets		824	727
Goodwill		996	996
Other intangibles		95	123
Other noncurrent assets		78	76
Total Other Noncurrent Assets		1,993	1,922
Total Assets		14,371	14,090
Current Liabilities
Short-term debt		185	265
Long-term debt due within one year		194	25
Notes payable with affiliates		163	54
Accounts payable		251	266
Accounts payable to affiliates		6	5
Taxes		39	46
Interest		32	32
Asset Retirement Obligations		60	50
Price risk management liabilities		4	5
Customer deposits		56	52
Regulatory liabilities		18	32
Other current liabilities		119	135
Total Current Liabilities		1,127	967
Long-term debt		4,471	4,663
Long-term debt to affiliate		400	400
Long-term Debt		4,871	5,063
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,735	1,463
Investment tax credits		132	128
Price risk management liabilities		27	42
Accrued pension obligations		350	296
Asset retirement obligations		373	485
Regulatory liabilities		899	923
Other deferred credits and noncurrent liabilities		190	206
Total Deferred Credits and Other Noncurrent Liabilities		3,706	3,543
Commitments and Contingent Liabilities
Equity
Accumulated other comprehensive income (loss)		(70)	(46)
Member's Equity		4,667	4,517
Total Liabilities and Equity		14,371	14,090
Louisville Gas And Electric Co [Member]
Current Assets
Cash and cash equivalents		5	19
Accounts receivable (less reserve:)
Customer		109	92
Other		11	11
Accounts receivable from affiliates		28	12
Unbilled revenues		75	67
Fuel, materials and supplies		143	151
Prepayments		12	5
Regulatory assets		9	16
Other current assets		1	2
Total Current Assets		393	375
Property, Plant and Equipment
Regulated utility plant		5,357	4,804
Less: accumulated depreciation - regulated utility plant		498	404
Regulated utility plant, net		4,859	4,400
Construction work in progress		133	390
Property, Plant and Equipment, net		4,992	4,790
Other Noncurrent Assets
Regulatory assets		450	424
Goodwill		389	389
Other intangibles		59	73
Other noncurrent assets		17	17
Total Other Noncurrent Assets		915	903
Total Assets		6,300	6,068
Current Liabilities
Short-term debt		169	142
Long-term debt due within one year		194	25
Accounts payable		148	157
Accounts payable to affiliates		26	25
Taxes		40	20
Interest		11	11
Asset Retirement Obligations		41	25
Price risk management liabilities		4	5
Customer deposits		27	26
Regulatory liabilities		5	13
Other current liabilities		36	39
Total Current Liabilities		701	488
Long-term Debt		1,423	1,617
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		974	829
Investment tax credits		36	35
Price risk management liabilities		27	42
Accrued pension obligations		53	56
Asset retirement obligations		104	149
Regulatory liabilities		419	431
Other deferred credits and noncurrent liabilities		87	91
Total Deferred Credits and Other Noncurrent Liabilities		1,700	1,633
Commitments and Contingent Liabilities
Equity
Common stock	[5]	424	424
Additional paid-in capital		1,682	1,611
Earnings reinvested		370	295
Total Equity		2,476	2,330
Total Liabilities and Equity		6,300	6,068
Kentucky Utilities Co [Member]
Current Assets
Cash and cash equivalents		7	11
Accounts receivable (less reserve:)
Customer		126	117
Other		5	9
Accounts receivable from affiliates		0	1
Unbilled revenues		95	80
Fuel, materials and supplies		154	147
Prepayments		12	8
Regulatory assets		11	19
Other current assets		3	4
Total Current Assets		413	396
Property, Plant and Equipment
Regulated utility plant		7,382	7,099
Less: accumulated depreciation - regulated utility plant		965	759
Regulated utility plant, net		6,417	6,340
Construction work in progress		181	267
Property, Plant and Equipment, net		6,598	6,607
Other Noncurrent Assets
Regulatory assets		374	303
Goodwill		607	607
Other intangibles		36	50
Other noncurrent assets		57	48
Total Other Noncurrent Assets		1,074	1,008
Total Assets		8,085	8,011
Current Liabilities
Short-term debt		16	48
Long-term debt due within one year		0	0
Accounts payable		78	88
Accounts payable to affiliates		56	39
Taxes		45	20
Interest		16	16
Asset Retirement Obligations		19	25
Customer deposits		29	26
Regulatory liabilities		13	19
Other current liabilities		36	44
Total Current Liabilities		308	325
Long-term Debt		2,327	2,326
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,170	1,046
Investment tax credits		96	93
Accrued pension obligations		62	46
Asset retirement obligations		269	336
Regulatory liabilities		480	492
Other deferred credits and noncurrent liabilities		50	60
Total Deferred Credits and Other Noncurrent Liabilities		2,127	2,073
Commitments and Contingent Liabilities
Equity
Common stock	[6]	308	308
Additional paid-in capital		2,616	2,596
Earnings reinvested		400	383
Accumulated other comprehensive income (loss)		(1)	0
Total Equity		3,323	3,287
Total Liabilities and Equity		$ 8,085	$ 8,011

[1] For PPL, these amounts are included in "Other current assets" on the Balance Sheets.

[2] There were no accumulated impairment losses related to goodwill.

[3] 1,560,000 shares authorized; 679,731 shares issued and outstanding at December 31, 2016; 780,000 shares authorized; 673,857 shares issued and outstanding at December 31, 2015.

[4] 170,000 shares authorized; 66,368 shares issued and outstanding at December 31, 2016 and 2015

[5] 75,000 shares authorized; 21,294 shares issued and outstanding at December 31, 2016 and December 31, 2015.

[6] 80,000 shares authorized; 37,818 shares issued and outstanding at December 31, 2016 and December 31, 2015.