CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Millions, unless otherwise specified	Jun. 30, 2012		Dec. 31, 2011
Current Assets
Cash and cash equivalents	$ 981		$ 1,202
Short-term investments	0		16
Restricted cash and cash equivalents	101		152
Accounts receivable (less reserve:)
Customer	750		736
Other	63		91
Unbilled revenues	754		830
Fuel, materials and supplies	719		654
Prepayments	252		160
Price risk management assets	2,483		2,548
Regulatory assets	17		9
Other current assets	31		28
Total Current Assets	6,151		6,426
Investments
Nuclear plant decommissioning trust funds	681		640
Other investments	68		78
Total Investments	749		718
Property, Plant and Equipment
Regulated utility plant	23,584		22,994
Less: accumulated depreciation - regulated utility plant	3,813		3,534
Regulated utility plant, net	19,771		19,460
Non-regulated property, plant and equipment
Generation	11,182		10,514
Nuclear fuel	524		457
Other	674		637
Less: accumulated depreciation - non-regulated property, plant and equipment	5,762		5,676
Non-regulated property, plant and equipment, net	6,618		5,932
Construction work in progress	1,880		1,874
Property, Plant and Equipment, net	28,269	[1]	27,266	[1]
Other Noncurrent Assets
Regulatory assets	1,335		1,349
Goodwill	4,036		4,114
Other intangibles	909	[1]	1,065	[1]
Price risk management assets	1,112		920
Other noncurrent assets	947		790
Total Other Noncurrent Assets	8,339		8,238
Total Assets	43,508		42,648
Current Liabilities
Short-term debt	889		578
Long-term debt due within one year	12		0
Accounts payable	1,037		1,214
Taxes	94		65
Interest	201		287
Dividends	210		207
Price risk management liabilities	1,595		1,570
Regulatory liabilities	58		73
Other current liabilities	1,222		1,261
Total Current Liabilities	5,318		5,255
Long-term Debt	18,698		17,993
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	3,638		3,326
Investment tax credits	305		285
Price risk management liabilities	1,016		840
Accrued pension obligations	1,093		1,313
Asset retirement obligations	497		484
Regulatory liabilities	1,003		1,010
Other deferred credits and noncurrent liabilities	960		1,046
Total Deferred Credits and Other Noncurrent Liabilities	8,512		8,304
Commitments and Contingent Liabilities	0		0
Equity
Common stock	6	[2]	6	[2]
Additional paid-in capital	6,886		6,813
Earnings reinvested	5,190		4,797
Accumulated other comprehensive loss	(1,120)		(788)
Total Stockholders' Equity	10,962		10,828
Noncontrolling Interests	18		268
Total Equity	10,980		11,096
Total Liabilities and Equity	43,508		42,648
PPL Energy Supply LLC [Member]
Current Assets
Cash and cash equivalents	446		379
Restricted cash and cash equivalents	93		145
Accounts receivable (less reserve:)
Customer	181		169
Other	22		31
Unbilled revenues	341		402
Accounts receivable from affiliates	89		89
Notes receivable from affiliates	0		198
Fuel, materials and supplies	372		298
Prepayments	44		14
Price risk management assets	2,471		2,527
Other current assets	12		11
Total Current Assets	4,071		4,263
Investments
Nuclear plant decommissioning trust funds	681		640
Other investments	42		40
Total Investments	723		680
Non-regulated property, plant and equipment
Generation	11,191		10,517
Nuclear fuel	524		457
Other	253		245
Less: accumulated depreciation - non-regulated property, plant and equipment	5,649		5,573
Non-regulated property, plant and equipment, net	6,319		5,646
Construction work in progress	810		840
Property, Plant and Equipment, net	7,129	[1]	6,486	[1]
Other Noncurrent Assets
Goodwill	86		86
Other intangibles	244	[1]	386	[1]
Price risk management assets	1,035		896
Other noncurrent assets	387		382
Total Other Noncurrent Assets	1,752		1,750
Total Assets	13,675		13,179
Current Liabilities
Short-term debt	520		400
Long-term debt due within one year	12		0
Accounts payable	428		472
Accounts payable to affiliates	5		14
Taxes	32		90
Interest	31		30
Price risk management liabilities	1,570		1,560
Counterparty collateral	205		148
Deferred income taxes	296		315
Other current liabilities	209		196
Total Current Liabilities	3,308		3,225
Long-term Debt	3,267		3,024
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,286		1,223
Investment tax credits	159		136
Price risk management liabilities	958		785
Accrued pension obligations	156		214
Asset retirement obligations	359		349
Other deferred credits and noncurrent liabilities	182		186
Total Deferred Credits and Other Noncurrent Liabilities	3,100		2,893
Commitments and Contingent Liabilities	0		0
Equity
Member's Equity	3,982		4,019
Noncontrolling Interests	18		18
Total Equity	4,000		4,037
Total Liabilities and Equity	13,675		13,179
PPL Electric Utilities Corp [Member]
Current Assets
Cash and cash equivalents	45		320
Accounts receivable (less reserve:)
Customer	261		271
Other	6		9
Unbilled revenues	87		98
Accounts receivable from affiliates	30		35
Fuel, materials and supplies	38		42
Prepayments	96		78
Other current assets	29		30
Total Current Assets	592		883
Property, Plant and Equipment
Regulated utility plant	6,024		5,830
Less: accumulated depreciation - regulated utility plant	2,269		2,217
Regulated utility plant, net	3,755		3,613
Non-regulated property, plant and equipment
Other, net	2		2
Construction work in progress	262		242
Property, Plant and Equipment, net	4,019		3,857
Other Noncurrent Assets
Regulatory assets	734		729
Other intangibles	161		155
Other noncurrent assets	80		81
Total Other Noncurrent Assets	975		965
Total Assets	5,586		5,705
Current Liabilities
Short-term debt	195		0
Accounts payable	154		171
Accounts payable to affiliates	49		64
Customer deposits and prepayments	29		39
Interest	23		24
Regulatory liabilities	42		53
Vacation	23		22
Other current liabilities	39		47
Total Current Liabilities	554		420
Long-term Debt	1,718		1,718
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	1,168		1,115
Investment tax credits	4		5
Accrued pension obligations	139		186
Regulatory liabilities	9		7
Other deferred credits and noncurrent liabilities	113		129
Total Deferred Credits and Other Noncurrent Liabilities	1,433		1,442
Commitments and Contingent Liabilities	0		0
Equity
Preference stock	0		250
Common stock	364	[3]	364	[3]
Additional paid-in capital	979		979
Earnings reinvested	538		532
Total Stockholders' Equity	1,881		2,125
Total Liabilities and Equity	5,586		5,705
LG And E And KU Energy LLC [Member]
Current Assets
Cash and cash equivalents	29		59
Accounts receivable (less reserve:)
Customer	145		129
Other	13		20
Unbilled revenues	145		146
Notes receivable from affiliates	12		15
Fuel, materials and supplies	281		283
Prepayments	28		22
Income taxes receivable	1		3
Deferred income taxes	104		17
Regulatory assets	17		9
Other current assets	4		3
Total Current Assets	779		706
Investments
Investments	21		31
Property, Plant and Equipment
Regulated utility plant	7,758		7,519
Less: accumulated depreciation - regulated utility plant	397		277
Regulated utility plant, net	7,361		7,242
Non-regulated property, plant and equipment
Other, net	2		2
Construction work in progress	574		557
Property, Plant and Equipment, net	7,937		7,801
Other Noncurrent Assets
Regulatory assets	601		620
Goodwill	996		996
Other intangibles	290		314
Other noncurrent assets	113		108
Total Other Noncurrent Assets	2,000		2,038
Total Assets	10,737		10,576
Current Liabilities
Accounts payable	214		224
Accounts payable to affiliates	2		2
Customer deposits and prepayments	47		45
Taxes	58		25
Interest	22		23
Regulatory liabilities	16		20
Salaries and benefits	51		59
Other current liabilities	45		35
Total Current Liabilities	455		433
Long-term Debt	4,074		4,073
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	563		413
Investment tax credits	141		144
Price risk management liabilities	57		55
Accrued pension obligations	313		359
Asset retirement obligations	118		116
Regulatory liabilities	994		1,003
Other deferred credits and noncurrent liabilities	248		239
Total Deferred Credits and Other Noncurrent Liabilities	2,434		2,329
Commitments and Contingent Liabilities	0		0
Equity
Member's Equity	3,774		3,741
Total Liabilities and Equity	10,737		10,576
Louisville Gas And Electric Co [Member]
Current Assets
Cash and cash equivalents	25		25
Accounts receivable (less reserve:)
Customer	64		60
Other	6		9
Unbilled revenues	59		65
Accounts receivable from affiliates	21		11
Notes receivable from affiliates	6		0
Fuel, materials and supplies	136		142
Prepayments	10		7
Income taxes receivable	0		4
Deferred income taxes	2		2
Regulatory assets	13		9
Other current assets	1		0
Total Current Assets	343		334
Property, Plant and Equipment
Regulated utility plant	3,077		2,956
Less: accumulated depreciation - regulated utility plant	168		116
Regulated utility plant, net	2,909		2,840
Non-regulated property, plant and equipment
Construction work in progress	182		215
Property, Plant and Equipment, net	3,091		3,055
Other Noncurrent Assets
Regulatory assets	391		403
Goodwill	389		389
Other intangibles	155		166
Other noncurrent assets	42		40
Total Other Noncurrent Assets	977		998
Total Assets	4,411		4,387
Current Liabilities
Accounts payable	93		94
Accounts payable to affiliates	16		26
Customer deposits and prepayments	23		22
Taxes	28		13
Interest	6		6
Regulatory liabilities	7		10
Salaries and benefits	13		14
Other current liabilities	20		14
Total Current Liabilities	206		199
Long-term Debt	1,112		1,112
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	506		475
Investment tax credits	41		43
Price risk management liabilities	57		55
Accrued pension obligations	71		95
Asset retirement obligations	55		55
Regulatory liabilities	472		478
Other deferred credits and noncurrent liabilities	109		113
Total Deferred Credits and Other Noncurrent Liabilities	1,311		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	80		60
Total Stockholders' Equity	1,782		1,762
Total Liabilities and Equity	4,411		4,387
Kentucky Utilities Co [Member]
Current Assets
Cash and cash equivalents	3		31
Accounts receivable (less reserve:)
Customer	81		69
Other	7		9
Unbilled revenues	86		81
Accounts receivable from affiliates	15		0
Fuel, materials and supplies	145		141
Prepayments	11		7
Income taxes receivable	1		5
Deferred income taxes	5		5
Regulatory assets	4		0
Other current assets	5		3
Total Current Assets	363		351
Investments
Investments	20		31
Property, Plant and Equipment
Regulated utility plant	4,681		4,563
Less: accumulated depreciation - regulated utility plant	229		161
Regulated utility plant, net	4,452		4,402
Non-regulated property, plant and equipment
Construction work in progress	390		340
Property, Plant and Equipment, net	4,842		4,742
Other Noncurrent Assets
Regulatory assets	210		217
Goodwill	607		607
Other intangibles	135		148
Other noncurrent assets	60		60
Total Other Noncurrent Assets	1,012		1,032
Total Assets	6,237		6,156
Current Liabilities
Notes payable to affiliates	6		0
Accounts payable	111		112
Accounts payable to affiliates	35		33
Customer deposits and prepayments	24		23
Taxes	23		11
Interest	10		11
Regulatory liabilities	9		10
Salaries and benefits	13		15
Other current liabilities	20		13
Total Current Liabilities	251		228
Long-term Debt	1,842		1,842
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes	537		484
Investment tax credits	100		101
Accrued pension obligations	71		83
Asset retirement obligations	63		61
Regulatory liabilities	522		525
Other deferred credits and noncurrent liabilities	90		87
Total Deferred Credits and Other Noncurrent Liabilities	1,383		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	109		89
Accumulated other comprehensive loss	(4)		0
Total Stockholders' Equity	2,761		2,745
Total Liabilities and Equity	$ 6,237		$ 6,156

[1] Both ##D<CurQtrEnd> and ##D<PreYearEnd> include $##D<PPEVIECYBSCorp> million of PP&E, consisting primarily of "Generation," including leasehold improvements, and $##D<IntangVIECYBSCorp> million and $##D<IntangVIEPYBSCorp> million of "Other intangibles" from the consolidation of a VIE that is the owner/lessor of the Lower Mt. Bethel plant.

[2] ##D<ShareAuthCYBSCorp> shares authorized; ##D<SharesIssuedCYBSCorp> and ##D<SharesIssuedPYBSCorp> shares issued and outstanding at ##D<CurQtrEnd> and ##D<PreYearEnd>.

[3] ##D<SharesAuthCYBSElec> shares authorized; ##D<SharesIssCYBSElec> shares issued and outstanding at ##D<CurQtrEnd> and ##D<PreYearEnd>.

[4] 75,000 shares authorized; 21,294 shares issued and outstanding at ##D<CurQtrEnd> and ##D<PreYearEnd>.

[5] 80,000 shares authorized; 37,818 shares issued and outstanding at ##D<CurQtrEnd> and ##D<PreYearEnd>.