CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012		Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 1,103		$ 1,202
Short-term investments	0		16
Restricted cash and cash equivalents	172		152
Accounts receivable (less reserve:)
Customer	723		742
Other	84		85
Unbilled revenues	774		830
Fuel, materials and supplies	669		654
Prepayments	261		160
Price risk management assets	3,230		2,548
Regulatory assets	15		9
Other current assets	31		28
Total Current Assets	7,062		6,426
Investments
Nuclear plant decommissioning trust funds	693		640
Other investments	75		78
Total Investments	768		718
Property, Plant and Equipment
Regulated utility plant	23,544		22,994
Less: accumulated depreciation - regulated utility plant	3,701		3,534
Regulated utility plant, net	19,843		19,460
Non-regulated property, plant and equipment
Generation	10,536		10,514
Nuclear fuel	718		658
Other	661		637
Less: accumulated depreciation - non-regulated property, plant and equipment	5,758		5,676
Non-regulated property, plant and equipment, net	6,157		6,133
Construction work in progress	1,706		1,673
Property, Plant and Equipment, net	27,706	[1]	27,266	[1]
Other Noncurrent Assets
Regulatory assets	1,334		1,349
Goodwill	4,161		4,114
Other intangibles	1,064	[1]	1,065	[1]
Price risk management assets	1,186		920
Other noncurrent assets	801		790
Total Other Noncurrent Assets	8,546		8,238
Total Assets	44,082		42,648
Current Liabilities
Short-term debt	674		578
Accounts payable	1,027		1,214
Taxes	132		65
Interest	326		287
Dividends	214		207
Price risk management liabilities	2,149		1,570
Regulatory liabilities	74		73
Other current liabilities	1,292		1,261
Total Current Liabilities	5,888		5,255
Long-term Debt	18,076		17,993
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	3,589		3,326
Investment tax credits	295		285
Price risk management liabilities	1,074		840
Accrued pension obligations	1,105		1,299
Asset retirement obligations	491		484
Regulatory liabilities	1,009		1,010
Other deferred credits and noncurrent liabilities	1,020		1,060
Total Deferred Credits and Other Noncurrent Liabilities	8,583		8,304
Commitments and Contingent Liabilities	0		0
Equity
Common stock	6	[2]	6	[2]
Additional paid-in capital	6,862		6,813
Earnings reinvested	5,129		4,797
Accumulated other comprehensive loss	(730)		(788)
Total Stockholders' Equity	11,267		10,828
Noncontrolling Interests	268		268
Total Equity	11,535		11,096
Total Liabilities and Equity	44,082		42,648
PPL Energy Supply [Member]
Current Assets
Cash and cash equivalents	135		379
Restricted cash and cash equivalents	164		145
Accounts receivable (less reserve:)
Customer	134		169
Other	24		31
Unbilled revenues	396		402
Accounts receivable from affiliates	93		89
Notes receivable from affiliates	0		198
Fuel, materials and supplies	347		298
Prepayments	21		14
Price risk management assets	3,222		2,527
Other current assets	14		11
Total Current Assets	4,550		4,263
Investments
Nuclear plant decommissioning trust funds	693		640
Other investments	45		40
Total Investments	738		680
Non-regulated property, plant and equipment
Generation	10,544		10,517
Nuclear fuel	718		658
Other	251		245
Less: accumulated depreciation - non-regulated property, plant and equipment	5,651		5,573
Non-regulated property, plant and equipment, net	5,862		5,847
Construction work in progress	704		639
Property, Plant and Equipment, net	6,566	[1]	6,486	[1]
Other Noncurrent Assets
Goodwill	86		86
Other intangibles	387	[1]	386	[1]
Price risk management assets	1,149		896
Other noncurrent assets	390		382
Total Other Noncurrent Assets	2,012		1,750
Total Assets	13,866		13,179
Current Liabilities
Short-term debt	500		400
Accounts payable	427		472
Accounts payable to affiliates	19		14
Taxes	64		90
Interest	53		30
Price risk management liabilities	2,129		1,560
Counterparty collateral	213		148
Deferred income taxes	367		315
Other current liabilities	170		196
Total Current Liabilities	3,942		3,225
Long-term Debt	3,024		3,024
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,308		1,223
Investment tax credits	148		136
Price risk management liabilities	1,025		785
Accrued pension obligations	150		214
Asset retirement obligations	353		349
Other deferred credits and noncurrent liabilities	185		186
Total Deferred Credits and Other Noncurrent Liabilities	3,169		2,893
Commitments and Contingent Liabilities	0		0
Equity
Member's Equity	3,713		4,019
Noncontrolling Interests	18		18
Total Equity	3,731		4,037
Total Liabilities and Equity	13,866		13,179
PPL Electric [Member]
Current Assets
Cash and cash equivalents	149		320
Accounts receivable (less reserve:)
Customer	287		271
Other	8		9
Unbilled revenues	75		98
Accounts receivable from affiliates	32		35
Fuel, materials and supplies	39		42
Prepayments	148		78
Other current assets	32		30
Total Current Assets	770		883
Property, Plant and Equipment
Regulated utility plant	5,932		5,830
Less: accumulated depreciation - regulated utility plant	2,241		2,217
Regulated utility plant, net	3,691		3,613
Non-regulated property, plant and equipment
Other, net	2		2
Construction work in progress	235		242
Property, Plant and Equipment, net	3,928		3,857
Other Noncurrent Assets
Regulatory assets	731		729
Other intangibles	157		155
Other noncurrent assets	81		81
Total Other Noncurrent Assets	969		965
Total Assets	5,667		5,705
Current Liabilities
Accounts payable	150		171
Accounts payable to affiliates	61		64
Customer deposits and prepayments	16		39
Interest	19		24
Regulatory liabilities	53		53
Vacation	24		22
Other current liabilities	69		47
Total Current Liabilities	392		420
Long-term Debt	1,718		1,718
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,167		1,115
Investment tax credits	4		5
Accrued pension obligations	136		186
Regulatory liabilities	12		7
Other deferred credits and noncurrent liabilities	115		129
Total Deferred Credits and Other Noncurrent Liabilities	1,434		1,442
Commitments and Contingent Liabilities	0		0
Equity
Preferred securities	250		250
Common stock	364	[3]	364	[3]
Additional paid-in capital	979		979
Earnings reinvested	530		532
Total Stockholders' Equity	2,123		2,125
Total Liabilities and Equity	5,667		5,705
LKE [Member]
Current Assets
Cash and cash equivalents	104		59
Accounts receivable (less reserve:)
Customer	141		135
Other	9		14
Unbilled revenues	117		146
Notes receivable from affiliates	5		15
Income taxes receivable	12		3
Fuel, materials and supplies	254		283
Prepayments	17		22
Deferred income taxes	72		17
Regulatory assets	15		9
Other current assets	1		3
Total Current Assets	747		706
Investments
Investments	24		31
Property, Plant and Equipment
Regulated utility plant	7,652		7,519
Less: accumulated depreciation - regulated utility plant	337		277
Regulated utility plant, net	7,315		7,242
Non-regulated property, plant and equipment
Other, net	2		2
Construction work in progress	531		557
Property, Plant and Equipment, net	7,848		7,801
Other Noncurrent Assets
Regulatory assets	603		620
Goodwill	996		996
Other intangibles	302		314
Other noncurrent assets	106		108
Total Other Noncurrent Assets	2,007		2,038
Total Assets	10,626		10,576
Current Liabilities
Accounts payable	195		224
Accounts payable to affiliates	6		2
Customer deposits and prepayments	45		45
Taxes	34		25
Interest	53		23
Regulatory liabilities	21		20
Salaries and benefits	47		64
Other current liabilities	32		30
Total Current Liabilities	433		433
Long-term Debt	4,074		4,073
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	501		413
Investment tax credits	143		144
Price risk management liabilities	49		55
Accrued pension obligations	310		359
Asset retirement obligations	117		116
Regulatory liabilities	997		1,003
Other deferred credits and noncurrent liabilities	237		239
Total Deferred Credits and Other Noncurrent Liabilities	2,354		2,329
Commitments and Contingent Liabilities	0		0
Equity
Member's Equity	3,765		3,741
Total Liabilities and Equity	10,626		10,576
LGE [Member]
Current Assets
Cash and cash equivalents	54		25
Accounts receivable (less reserve:)
Customer	64		62
Other	5		7
Unbilled revenues	49		65
Accounts receivable from affiliates	20		11
Income taxes receivable	3		4
Fuel, materials and supplies	123		142
Prepayments	5		7
Deferred income taxes	2		2
Regulatory assets	14		9
Other current assets	1		0
Total Current Assets	340		334
Property, Plant and Equipment
Regulated utility plant	3,027		2,956
Less: accumulated depreciation - regulated utility plant	144		116
Regulated utility plant, net	2,883		2,840
Non-regulated property, plant and equipment
Construction work in progress	184		215
Property, Plant and Equipment, net	3,067		3,055
Other Noncurrent Assets
Regulatory assets	389		403
Goodwill	389		389
Other intangibles	160		166
Other noncurrent assets	38		40
Total Other Noncurrent Assets	976		998
Total Assets	4,383		4,387
Current Liabilities
Accounts payable	97		94
Accounts payable to affiliates	16		26
Customer deposits and prepayments	22		22
Taxes	18		13
Interest	12		6
Regulatory liabilities	10		10
Salaries and benefits	12		13
Other current liabilities	19		15
Total Current Liabilities	206		199
Long-term Debt	1,112		1,112
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	492		475
Investment tax credits	42		43
Price risk management liabilities	49		55
Accrued pension obligations	72		95
Asset retirement obligations	55		55
Regulatory liabilities	473		478
Other deferred credits and noncurrent liabilities	110		113
Total Deferred Credits and Other Noncurrent Liabilities	1,293		1,314
Commitments and Contingent Liabilities	0		0
Equity
Common stock	424	[4]	424	[4]
Additional paid-in capital	1,278		1,278
Earnings reinvested	70		60
Total Stockholders' Equity	1,772		1,762
Total Liabilities and Equity	4,383		4,387
KU [Member]
Current Assets
Cash and cash equivalents	46		31
Accounts receivable (less reserve:)
Customer	77		73
Other	4		5
Unbilled revenues	68		81
Accounts receivable from affiliates	3		0
Income taxes receivable	4		5
Fuel, materials and supplies	131		141
Prepayments	6		7
Deferred income taxes	5		5
Regulatory assets	1		0
Other current assets	4		3
Total Current Assets	349		351
Investments
Investments	23		31
Property, Plant and Equipment
Regulated utility plant	4,625		4,563
Less: accumulated depreciation - regulated utility plant	193		161
Regulated utility plant, net	4,432		4,402
Non-regulated property, plant and equipment
Construction work in progress	345		340
Property, Plant and Equipment, net	4,777		4,742
Other Noncurrent Assets
Regulatory assets	214		217
Goodwill	607		607
Other intangibles	142		148
Other noncurrent assets	61		60
Total Other Noncurrent Assets	1,024		1,032
Total Assets	6,173		6,156
Current Liabilities
Accounts payable	88		112
Accounts payable to affiliates	36		33
Customer deposits and prepayments	23		23
Taxes	15		11
Interest	26		11
Regulatory liabilities	11		10
Salaries and benefits	10		14
Other current liabilities	14		14
Total Current Liabilities	223		228
Long-term Debt	1,842		1,842
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	508		484
Investment tax credits	101		101
Accrued pension obligations	70		83
Asset retirement obligations	62		61
Regulatory liabilities	524		525
Other deferred credits and noncurrent liabilities	88		87
Total Deferred Credits and Other Noncurrent Liabilities	1,353		1,341
Commitments and Contingent Liabilities	0		0
Equity
Common stock	308	[5]	308	[5]
Additional paid-in capital	2,348		2,348
Earnings reinvested	103		89
Accumulated other comprehensive loss	(4)		0
Total Stockholders' Equity	2,755		2,745
Total Liabilities and Equity	$ 6,173		$ 6,156

[1] At March 31, 2012 and December 31, 2011, includes $417 million and $416 million of PP&E, consisting primarily of "Generation," including leasehold improvements, and $10 million and $11 million of "Other intangibles" from the consolidation of a VIE that is the owner/lessor of the Lower Mt. Bethel plant.

[2] 780,000 shares authorized; 579,520 and 578,405 shares issued and outstanding at March 31, 2012 and December 31, 2011.

[3] 170,000 shares authorized; 66,368 shares issued and outstanding at March 31, 2012 and December 31, 2011.

[4] 75,000 shares authorized; 21,294 shares issued and outstanding at March 31, 2012 and December 31, 2011.

[5] 80,000 shares authorized; 37,818 shares issued and outstanding at March 31, 2012 and December 31, 2011.