CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 1,102		$ 901
Restricted cash and cash equivalents	83		54
Accounts receivable (less reserve:)
Customer	923		745
Other	97		79
Unbilled revenues	835		857
Fuel, materials and supplies	702		673
Prepayments	153		166
Deferred income taxes	246		30
Price risk management assets	942		1,525
Regulatory assets	33		19
Other current assets	37		19
Total Current Assets	5,153		5,068
Investments
Nuclear plant decommissioning trust funds	864		712
Other investments	43		47
Total Investments	907		759
Property, Plant and Equipment
Regulated utility plant	27,755		25,196
Less: accumulated depreciation - regulated utility plant	4,873		4,164
Regulated utility plant, net	22,882		21,032
Non-regulated property, plant and equipment
Generation	11,881		11,295
Nuclear fuel	591		524
Other	834		726
Less: accumulated depreciation - non-regulated property, plant and equipment	6,172		5,942
Non-regulated property, plant and equipment, net	7,134		6,603
Construction work in progress	3,071		2,397
Property, Plant and Equipment, net	33,087		30,032
Other Noncurrent Assets
Regulatory assets	1,246		1,483
Goodwill	4,225		4,158
Other intangibles	947		925
Price risk management assets	337		572
Other noncurrent assets	357		637
Total Other Noncurrent Assets	7,112		7,775
Total Assets	46,259		43,634
Current Liabilities
Short-term debt	701		652
Long-term debt due within one year	315		751
Accounts payable	1,308		1,252
Taxes	114		90
Interest	325		325
Dividends	232		210
Price risk management liabilities	829		1,065
Regulatory liabilities	90		61
Other current liabilities	998		1,219
Total Current Liabilities	4,912		5,625
Long-term Debt	20,592		18,725
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	3,928		3,387
Investment tax credits	342		328
Price risk management liabilities	415		629
Accrued pension obligations	1,286		2,076
Asset retirement obligations	687		536
Regulatory liabilities	1,048		1,010
Other deferred credits and noncurrent liabilities	583		820
Total Deferred Credits and Other Noncurrent Liabilities	8,289		8,786
Commitments and Contingent Liabilities
Equity
Common stock	6	[1]	6	[1]
Additional paid-in capital	8,316		6,936
Earnings reinvested	5,709		5,478
Accumulated other comprehensive income (loss)	(1,565)		(1,940)
Total Stockholders' Equity	12,466		10,480
Noncontrolling Interests			18
Total Equity	12,466		10,498
Total Liabilities and Equity	46,259		43,634
PPL Energy Supply LLC [Member]
Current Assets
Cash and cash equivalents	239		413
Restricted cash and cash equivalents	68		46
Accounts receivable (less reserve:)
Customer	233		183
Other	97		31
Accounts receivable from affiliates	45		125
Unbilled revenues	286		369
Fuel, materials and supplies	358		327
Prepayments	20		15
Price risk management assets	860		1,511
Other current assets	27		10
Total Current Assets	2,233		3,030
Investments
Nuclear plant decommissioning trust funds	864		712
Other investments	37		41
Total Investments	901		753
Non-regulated property, plant and equipment
Generation	11,891		11,305
Nuclear fuel	591		524
Other	288		294
Less: accumulated depreciation - non-regulated property, plant and equipment	6,046		5,817
Non-regulated property, plant and equipment, net	6,724		6,306
Construction work in progress	450		987
Property, Plant and Equipment, net	7,174		7,293
Other Noncurrent Assets
Goodwill	86		86
Other intangibles	266		252
Price risk management assets	328		557
Other noncurrent assets	86		404
Total Other Noncurrent Assets	766		1,299
Total Assets	11,074		12,375
Current Liabilities
Short-term debt			356
Long-term debt due within one year	304		751
Accounts payable	393		438
Accounts payable to affiliates	4		31
Taxes	31		62
Interest	22		31
Price risk management liabilities	750		1,010
Deferred income taxes	9		158
Other current liabilities	269		319
Total Current Liabilities	1,782		3,156
Long-term Debt	2,221		2,521
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,114		1,232
Investment tax credits	205		186
Price risk management liabilities	320		556
Accrued pension obligations	111		293
Asset retirement obligations	393		365
Other deferred credits and noncurrent liabilities	130		218
Total Deferred Credits and Other Noncurrent Liabilities	2,273		2,850
Commitments and Contingent Liabilities
Equity
Accumulated other comprehensive income (loss)	77		48
Member's Equity	4,798		3,830
Noncontrolling Interests			18
Total Equity	4,798		3,848
Total Liabilities and Equity	11,074		12,375
PPL Electric Utilities Corp [Member]
Current Assets
Cash and cash equivalents	25		140
Accounts receivable (less reserve:)
Customer	284		249
Other	5		5
Accounts receivable from affiliates	4		29
Unbilled revenues	116		110
Notes receivable from affiliates	150
Fuel, materials and supplies	35		39
Prepayments	40		76
Deferred income taxes	85		45
Regulatory assets	6
Other current assets	22		4
Total Current Assets	766		697
Property, Plant and Equipment
Regulated utility plant	6,886		6,286
Less: accumulated depreciation - regulated utility plant	2,417		2,316
Regulated utility plant, net	4,469		3,970
Non-regulated property, plant and equipment
Other, net	2		2
Construction work in progress	591		370
Property, Plant and Equipment, net	5,062		4,342
Other Noncurrent Assets
Regulatory assets	772		853
Other intangibles	211		171
Other noncurrent assets	35		55
Total Other Noncurrent Assets	1,018		1,079
Total Assets	6,846		6,118
Current Liabilities
Short-term debt	20
Long-term debt due within one year	10
Accounts payable	295		259
Accounts payable to affiliates	57		63
Taxes	51		12
Interest	34		26
Regulatory liabilities	76		52
Other current liabilities	82		93
Total Current Liabilities	625		505
Long-term Debt	2,305		1,967
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,399		1,233
Investment tax credits	2		3
Accrued pension obligations	96		237
Regulatory liabilities	15		8
Other deferred credits and noncurrent liabilities	55		103
Total Deferred Credits and Other Noncurrent Liabilities	1,567		1,584
Commitments and Contingent Liabilities
Equity
Common stock	364	[2]	364	[2]
Additional paid-in capital	1,340		1,135
Earnings reinvested	645		563
Total Stockholders' Equity	2,349		2,062
Total Liabilities and Equity	6,846		6,118
LG And E And KU Energy LLC [Member]
Current Assets
Cash and cash equivalents	35		43
Accounts receivable (less reserve:)
Customer	224		133
Other	20		20
Accounts receivable from affiliates			1
Unbilled revenues	180		156
Notes receivable from affiliates	70
Fuel, materials and supplies	278		276
Prepayments	21		28
Price risk management assets from affiliates			14
Deferred income taxes	159		13
Regulatory assets	27		19
Other current assets	3		4
Total Current Assets	1,017		707
Property, Plant and Equipment
Regulated utility plant	8,526		8,073
Less: accumulated depreciation - regulated utility plant	778		519
Regulated utility plant, net	7,748		7,554
Non-regulated property, plant and equipment
Other, net	3		3
Construction work in progress	1,793		750
Property, Plant and Equipment, net	9,544		8,307
Other Noncurrent Assets
Regulatory assets	474		630
Goodwill	996		996
Other intangibles	221		271
Other noncurrent assets	98		108
Total Other Noncurrent Assets	1,789		2,005
Total Assets	12,350		11,019
Current Liabilities
Short-term debt	245		125
Notes payable with affiliates			25
Accounts payable	346		283
Accounts payable to affiliates	3		1
Taxes	39		26
Interest	23		21
Price risk management liabilities	4		5
Regulatory liabilities	14		9
Customer deposits	50		48
Other current liabilities	111		100
Total Current Liabilities	835		643
Long-term Debt	4,565		4,075
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	965		541
Investment tax credits	135		138
Price risk management liabilities	32		53
Accrued pension obligations	152		414
Asset retirement obligations	245		125
Regulatory liabilities	1,033		1,002
Other deferred credits and noncurrent liabilities	238		242
Total Deferred Credits and Other Noncurrent Liabilities	2,800		2,515
Commitments and Contingent Liabilities
Equity
Accumulated other comprehensive income (loss)	13		(15)
Member's Equity	4,150		3,786
Total Liabilities and Equity	12,350		11,019
Louisville Gas And Electric Co [Member]
Current Assets
Cash and cash equivalents	8		22
Accounts receivable (less reserve:)
Customer	102		59
Other	9		16
Accounts receivable from affiliates			14
Unbilled revenues	85		72
Fuel, materials and supplies	154		142
Prepayments	7		7
Price risk management assets from affiliates			7
Regulatory assets	17		19
Other current assets	3		1
Total Current Assets	385		359
Property, Plant and Equipment
Regulated utility plant	3,383		3,187
Less: accumulated depreciation - regulated utility plant	332		220
Regulated utility plant, net	3,051		2,967
Non-regulated property, plant and equipment
Construction work in progress	651		259
Property, Plant and Equipment, net	3,702		3,226
Other Noncurrent Assets
Regulatory assets	303		400
Goodwill	389		389
Other intangibles	120		144
Other noncurrent assets	35		44
Total Other Noncurrent Assets	847		977
Total Assets	4,934		4,562
Current Liabilities
Short-term debt	20		55
Accounts payable	166		117
Accounts payable to affiliates	24		23
Taxes	11		2
Interest	6		5
Price risk management liabilities	4		5
Regulatory liabilities	9		4
Customer deposits	24		23
Other current liabilities	32		34
Total Current Liabilities	296		268
Long-term Debt	1,353		1,112
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	582		544
Investment tax credits	38		40
Price risk management liabilities	32		53
Accrued pension obligations	19		102
Asset retirement obligations	68		56
Regulatory liabilities	482		471
Other deferred credits and noncurrent liabilities	104		106
Total Deferred Credits and Other Noncurrent Liabilities	1,325		1,372
Commitments and Contingent Liabilities
Equity
Common stock	424	[3]	424	[3]
Additional paid-in capital	1,364		1,278
Earnings reinvested	172		108
Total Stockholders' Equity	1,960		1,810
Total Liabilities and Equity	4,934		4,562
Kentucky Utilities Co [Member]
Current Assets
Cash and cash equivalents	21		21
Accounts receivable (less reserve:)
Customer	122		74
Other	9		13
Accounts receivable from affiliates			7
Unbilled revenues	95		84
Fuel, materials and supplies	124		134
Prepayments	4		10
Price risk management assets from affiliates			7
Regulatory assets	10
Other current assets	6		6
Total Current Assets	391		356
Property, Plant and Equipment
Regulated utility plant	5,143		4,886
Less: accumulated depreciation - regulated utility plant	446		299
Regulated utility plant, net	4,697		4,587
Non-regulated property, plant and equipment
Other, net	1		1
Construction work in progress	1,139		490
Property, Plant and Equipment, net	5,837		5,078
Other Noncurrent Assets
Regulatory assets	171		230
Goodwill	607		607
Other intangibles	101		127
Other noncurrent assets	56		57
Total Other Noncurrent Assets	935		1,021
Total Assets	7,163		6,455
Current Liabilities
Short-term debt	150		70
Accounts payable	159		147
Accounts payable to affiliates	25		33
Taxes	33		26
Interest	11		10
Regulatory liabilities	5		5
Customer deposits	26		25
Other current liabilities	36		33
Total Current Liabilities	445		349
Long-term Debt	2,091		1,842
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	658		587
Investment tax credits	97		98
Accrued pension obligations	11		104
Asset retirement obligations	177		69
Regulatory liabilities	551		531
Other deferred credits and noncurrent liabilities	89		92
Total Deferred Credits and Other Noncurrent Liabilities	1,583		1,481
Commitments and Contingent Liabilities
Equity
Common stock	308	[4]	308	[4]
Additional paid-in capital	2,505		2,348
Earnings reinvested	230		126
Accumulated other comprehensive income (loss)	1		1
Total Stockholders' Equity	3,044		2,783
Total Liabilities and Equity	$ 7,163		$ 6,455

[1] 780,000 shares authorized; 630,321 and 581,944 shares issued and outstanding at December 31, 2013 and 2012.

[2] 170,000 shares authorized; 66,368 shares issued and outstanding at December 31, 2013 and 2012.

[3] 75,000 shares authorized; 21,294 shares issued and outstanding at December 31, 2013 and December 31, 2012.

[4] 80,000 shares authorized; 37,818 shares issued and outstanding at December 31, 2013 and December 31, 2012.