CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Current Assets
Cash and cash equivalents	$ 1,335		$ 1,751
Short-term investments	135		120
Restricted cash and cash equivalents	190		180
Accounts receivable (less reserve:)
Customer	1,104		923
Other	127		171
Unbilled revenues	621		735
Fuel, materials and supplies	687		836
Prepayments	168		87
Deferred income taxes	155		129
Price risk management assets	1,119		1,158
Regulatory assets	23		37
Other current assets	35		32
Total Current Assets	5,699		6,159
Investments
Nuclear plant decommissioning trust funds	965		950
Other investments	34		35
Total Investments	999		985
Property, Plant and Equipment
Regulated utility plant	30,852		30,568
Less: accumulated depreciation - regulated utility plant	5,413		5,361
Regulated utility plant, net	25,439		25,207
Non-regulated property, plant and equipment
Generation	11,309		11,310
Nuclear fuel	749		624
Other	893		885
Less: accumulated depreciation - non-regulated property, plant and equipment	6,516		6,404
Non-regulated property, plant and equipment, net	6,435		6,415
Construction work in progress	3,085		2,975
Property, Plant and Equipment, net	34,959		34,597
Assets, Noncurrent [Abstract]
Regulatory assets	1,610		1,562
Goodwill	3,964		4,005
Other intangibles	920		925
Price risk management assets	437		319
Other noncurrent assets	333		312
Total Other Noncurrent Assets	7,264		7,123
Total Assets	48,921		48,864
Current Liabilities
Short-term debt	1,595		1,466
Long-term debt due within one year	1,535		1,535
Accounts payable	1,128		1,356
Taxes	274		230
Interest	345		314
Dividends	249		249
Price risk management liabilities	1,073		1,126
Regulatory liabilities	109		91
Other current liabilities	909		1,076
Total Current Liabilities	7,217		7,443
Long-term Debt	18,772		18,856
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	4,627		4,450
Investment tax credits	157		159
Price risk management liabilities	333		252
Accrued pension obligations	1,457		1,756
Asset retirement obligations	739		739
Regulatory liabilities	987		992
Other deferred credits and noncurrent liabilities	596		589
Total Deferred Credits and Other Noncurrent Liabilities	8,896		8,937
Commitments and Contingent Liabilities
Equity
Common stock	7	[1]	7	[1]
Additional paid-in capital	9,480		9,433
Earnings reinvested	6,860		6,462
Accumulated other comprehensive income (loss)	(2,311)		(2,274)
Total Stockholders' Equity	14,036		13,628
Total Liabilities and Equity	48,921		48,864
PPL Electric Utilities Corp [Member]
Current Assets
Cash and cash equivalents	35		214
Accounts receivable (less reserve:)
Customer	403		312
Other	27		44
Unbilled revenues	115		113
Fuel, materials and supplies	38		43
Prepayments	70		10
Deferred income taxes	66		58
Regulatory assets	3		12
Other current assets	12		13
Total Current Assets	769		819
Property, Plant and Equipment
Regulated utility plant	7,717		7,589
Less: accumulated depreciation - regulated utility plant	2,555		2,517
Regulated utility plant, net	5,162		5,072
Non-regulated property, plant and equipment
Construction work in progress	837		738
Property, Plant and Equipment, net	5,999		5,810
Assets, Noncurrent [Abstract]
Regulatory assets	891		897
Other intangibles	237		235
Other noncurrent assets	25		24
Total Other Noncurrent Assets	1,153		1,156
Total Assets	7,921		7,785
Current Liabilities
Short-term debt	85		0
Long-term debt due within one year	100		100
Accounts payable	301		325
Accounts payable to affiliates	70		70
Taxes	90		85
Interest	26		34
Regulatory liabilities	85		76
Other current liabilities	80		103
Total Current Liabilities	837		793
Long-term Debt	2,503		2,502
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,497		1,483
Accrued pension obligations	182		212
Regulatory liabilities	26		18
Other deferred credits and noncurrent liabilities	66		60
Total Deferred Credits and Other Noncurrent Liabilities	1,771		1,773
Commitments and Contingent Liabilities
Equity
Common stock	364	[2]	364	[2]
Additional paid-in capital	1,653		1,603
Earnings reinvested	793		750
Total Stockholders' Equity	2,810		2,717
Total Liabilities and Equity	7,921		7,785
LG And E And KU Energy LLC [Member]
Current Assets
Cash and cash equivalents	40		21
Accounts receivable (less reserve:)
Customer	268		231
Other	14		18
Unbilled revenues	135		167
Fuel, materials and supplies	239		311
Prepayments	23		28
Income taxes receivable	2		136
Deferred income taxes	21		16
Regulatory assets	20		25
Other current assets	6		3
Total Current Assets	768		956
Property, Plant and Equipment
Regulated utility plant	10,069		10,007
Less: accumulated depreciation - regulated utility plant	1,049		1,067
Regulated utility plant, net	9,020		8,940
Non-regulated property, plant and equipment
Other, net	4		5
Construction work in progress	1,672		1,559
Property, Plant and Equipment, net	10,696		10,504
Assets, Noncurrent [Abstract]
Regulatory assets	719		665
Goodwill	996		996
Other intangibles	161		174
Other noncurrent assets	103		101
Total Other Noncurrent Assets	1,979		1,936
Total Assets	13,443		13,396
Current Liabilities
Short-term debt	484		575
Long-term debt due within one year	900		900
Notes payable with affiliates	40		41
Accounts payable	350		399
Accounts payable to affiliates	3		2
Customer deposits	52		52
Taxes	25		36
Interest	60		23
Price risk management liabilities	5		5
Price risk management liabilities from affiliates	122		66
Regulatory liabilities	24		15
Other current liabilities	115		131
Total Current Liabilities	2,180		2,245
Long-term Debt	3,667		3,667
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,324		1,241
Investment tax credits	130		131
Price risk management liabilities	47		43
Accrued pension obligations	256		305
Asset retirement obligations	266		274
Regulatory liabilities	961		974
Other deferred credits and noncurrent liabilities	270		268
Total Deferred Credits and Other Noncurrent Liabilities	3,254		3,236
Commitments and Contingent Liabilities
Equity
Member's Equity	4,342		4,248
Total Liabilities and Equity	13,443		13,396
Louisville Gas And Electric Co [Member]
Current Assets
Cash and cash equivalents	17		10
Accounts receivable (less reserve:)
Customer	121		107
Other	9		11
Unbilled revenues	58		76
Accounts receivable from affiliates	13		23
Fuel, materials and supplies	105		162
Prepayments	7		8
Income taxes receivable	0		74
Regulatory assets	12		21
Other current assets	5		1
Total Current Assets	347		493
Property, Plant and Equipment
Regulated utility plant	4,016		4,031
Less: accumulated depreciation - regulated utility plant	398		456
Regulated utility plant, net	3,618		3,575
Non-regulated property, plant and equipment
Construction work in progress	761		676
Property, Plant and Equipment, net	4,379		4,251
Assets, Noncurrent [Abstract]
Regulatory assets	422		397
Goodwill	389		389
Other intangibles	91		97
Other noncurrent assets	36		35
Total Other Noncurrent Assets	938		918
Total Assets	5,664		5,662
Current Liabilities
Short-term debt	216		264
Long-term debt due within one year	250		250
Accounts payable	222		240
Accounts payable to affiliates	20		20
Customer deposits	25		25
Taxes	12		19
Interest	15		6
Price risk management liabilities	5		5
Price risk management liabilities from affiliates	61		33
Regulatory liabilities	14		10
Other current liabilities	37		42
Total Current Liabilities	877		914
Long-term Debt	1,103		1,103
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	735		700
Investment tax credits	36		36
Price risk management liabilities	47		43
Accrued pension obligations	34		57
Asset retirement obligations	64		66
Regulatory liabilities	454		458
Other deferred credits and noncurrent liabilities	110		111
Total Deferred Credits and Other Noncurrent Liabilities	1,480		1,471
Commitments and Contingent Liabilities
Equity
Common stock	424	[3]	424	[3]
Additional paid-in capital	1,521		1,521
Earnings reinvested	259		229
Total Stockholders' Equity	2,204		2,174
Total Liabilities and Equity	5,664		5,662
Kentucky Utilities Co [Member]
Current Assets
Cash and cash equivalents	23		11
Accounts receivable (less reserve:)
Customer	147		124
Other	5		6
Unbilled revenues	77		91
Fuel, materials and supplies	134		149
Prepayments	7		10
Income taxes receivable	0		60
Regulatory assets	8		4
Other current assets	11		4
Total Current Assets	412		459
Property, Plant and Equipment
Regulated utility plant	6,053		5,976
Less: accumulated depreciation - regulated utility plant	651		611
Regulated utility plant, net	5,402		5,365
Non-regulated property, plant and equipment
Other, net	1		1
Construction work in progress	908		880
Property, Plant and Equipment, net	6,311		6,246
Assets, Noncurrent [Abstract]
Regulatory assets	297		268
Goodwill	607		607
Other intangibles	70		77
Other noncurrent assets	57		58
Total Other Noncurrent Assets	1,031		1,010
Total Assets	7,754		7,715
Current Liabilities
Short-term debt	193		236
Long-term debt due within one year	250		250
Accounts payable	114		141
Accounts payable to affiliates	33		47
Customer deposits	27		27
Taxes	13		14
Interest	30		11
Price risk management liabilities from affiliates	61		33
Regulatory liabilities	10		5
Other current liabilities	48		41
Total Current Liabilities	779		805
Long-term Debt	1,841		1,841
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	933		884
Investment tax credits	94		95
Accrued pension obligations	44		59
Asset retirement obligations	202		208
Regulatory liabilities	507		516
Other deferred credits and noncurrent liabilities	101		101
Total Deferred Credits and Other Noncurrent Liabilities	1,881		1,863
Commitments and Contingent Liabilities
Equity
Common stock	308	[4]	308	[4]
Additional paid-in capital	2,596		2,596
Earnings reinvested	350		302
Accumulated other comprehensive income (loss)	(1)		0
Total Stockholders' Equity	3,253		3,206
Total Liabilities and Equity	$ 7,754		$ 7,715

[1] 780,000 shares authorized; 667,713 and 665,849 shares issued and outstanding at March 31, 2015 and December 31, 2014.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at March 31, 2015 and December 31, 2014.

[3] 75,000shares authorized; 21,294 shares issued and outstanding at March 31, 2015 andDecember 31, 2014.

[4] 80,000shares authorized;37,818 shares issued and outstanding at March 31, 2015 andDecember 31, 2014.