Jointly Owned Facilities

12 Months Ended

Dec. 31, 2014

Jointly Owned Facilities [Line Items]

Jointly Owned Facilities

12. Jointly Owned Facilities

(All Registrants except PPL Electric)

At December 31, 2014 and 2013, the Balance Sheets reflect the owned interests in the facilities listed below.

										Construction
			Ownership			Other		Accumulated		Work
			Interest	Electric Plant		Property		Depreciation		in Progress
PPL
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
		Trimble County Units 1 & 2	75.00%		1,311				173		91
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
		Trimble County Units 1 & 2	75.00%		1,288				144		54
	Merrill Creek Reservoir		8.37%			$	22		16

PPL Energy Supply
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
	Merrill Creek Reservoir		8.37%			$	22		16

LKE
	December 31, 2014
	Generating Plants
		Trimble County Unit 1	75.00%	$	309	$	51	$	59
		Trimble County Unit 2	75.00%		1,002		122		32
	December 31, 2013
	Generating Plants
		Trimble County Unit 1	75.00%	$	308	$	42	$	18
		Trimble County Unit 2	75.00%		980		102		36
LG&E
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	10
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		47		7
		Trimble County Unit 1	75.00%		309		51	$	59
		Trimble County Unit 2	14.25%		205		23		15
		Trimble County Units 5-6	29.00%		29		5
		Trimble County Units 7-10	37.00%		70		11
		Cane Run Unit 7	22.00%						113
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	7	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		46		5		1
		Trimble County Unit 1	75.00%		308		42		18
		Trimble County Unit 2	14.25%		200		19		14
		Trimble County Units 5-6	29.00%		29		3
		Trimble County Units 7-10	37.00%		69		7		1
		Cane Run Unit 7	22.00%						91
KU
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	65	$	15	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		6
		Trimble County Unit 2	60.75%		797		98		17
		Trimble County Units 5-6	71.00%		70		11
		Trimble County Units 7-10	63.00%		120		18		1
		Cane Run Unit 7	78.00%						403
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	64	$	11	$	2
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		4		1
		Trimble County Unit 2	60.75%		780		83		22
		Trimble County Units 5-6	71.00%		70		8
		Trimble County Units 7-10	63.00%		118		12		2
		Cane Run Unit 7	78.00%						317

Each subsidiary owning these interests provides its own funding for its share of the facility. Each receives a portion of the total output of the generating plants equal to its percentage ownership. The share of fuel and other operating costs associated with the plants is included in the corresponding operating expenses on the Statements of Income.

In addition to the interests mentioned above, at December 31, 2014 and 2013, PPL Montana had a 50%ownership interest in Colstrip Units 1 and 2 and a 30%ownership interest in Colstrip Unit 3. The book value of these assets was not significant. At December 31, 2014 and 2013, NorthWestern owned a 30%interest in Colstrip Unit 4. PPL Montana and NorthWestern have a sharing agreement that governs each party's responsibilities and rights relating to the operation of Colstrip Units 3 and 4. Under the terms of that agreement, each party is responsible for 15% of the total non-coal operating and construction costs of Colstrip Units 3 and 4, regardless of whether a particular cost is specific to Colstrip Unit 3 or 4, and is entitled to take up to the same percentage of the available generation from Units 3 and 4.

PPL Energy Supply LLC [Member]

Jointly Owned Facilities [Line Items]

Jointly Owned Facilities

12. Jointly Owned Facilities

(All Registrants except PPL Electric)

At December 31, 2014 and 2013, the Balance Sheets reflect the owned interests in the facilities listed below.

										Construction
			Ownership			Other		Accumulated		Work
			Interest	Electric Plant		Property		Depreciation		in Progress
PPL
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
		Trimble County Units 1 & 2	75.00%		1,311				173		91
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
		Trimble County Units 1 & 2	75.00%		1,288				144		54
	Merrill Creek Reservoir		8.37%			$	22		16

PPL Energy Supply
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
	Merrill Creek Reservoir		8.37%			$	22		16

LKE
	December 31, 2014
	Generating Plants
		Trimble County Unit 1	75.00%	$	309	$	51	$	59
		Trimble County Unit 2	75.00%		1,002		122		32
	December 31, 2013
	Generating Plants
		Trimble County Unit 1	75.00%	$	308	$	42	$	18
		Trimble County Unit 2	75.00%		980		102		36
LG&E
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	10
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		47		7
		Trimble County Unit 1	75.00%		309		51	$	59
		Trimble County Unit 2	14.25%		205		23		15
		Trimble County Units 5-6	29.00%		29		5
		Trimble County Units 7-10	37.00%		70		11
		Cane Run Unit 7	22.00%						113
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	7	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		46		5		1
		Trimble County Unit 1	75.00%		308		42		18
		Trimble County Unit 2	14.25%		200		19		14
		Trimble County Units 5-6	29.00%		29		3
		Trimble County Units 7-10	37.00%		69		7		1
		Cane Run Unit 7	22.00%						91
KU
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	65	$	15	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		6
		Trimble County Unit 2	60.75%		797		98		17
		Trimble County Units 5-6	71.00%		70		11
		Trimble County Units 7-10	63.00%		120		18		1
		Cane Run Unit 7	78.00%						403
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	64	$	11	$	2
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		4		1
		Trimble County Unit 2	60.75%		780		83		22
		Trimble County Units 5-6	71.00%		70		8
		Trimble County Units 7-10	63.00%		118		12		2
		Cane Run Unit 7	78.00%						317

Each subsidiary owning these interests provides its own funding for its share of the facility. Each receives a portion of the total output of the generating plants equal to its percentage ownership. The share of fuel and other operating costs associated with the plants is included in the corresponding operating expenses on the Statements of Income.

In addition to the interests mentioned above, at December 31, 2014 and 2013, PPL Montana had a 50%ownership interest in Colstrip Units 1 and 2 and a 30%ownership interest in Colstrip Unit 3. The book value of these assets was not significant. At December 31, 2014 and 2013, NorthWestern owned a 30%interest in Colstrip Unit 4. PPL Montana and NorthWestern have a sharing agreement that governs each party's responsibilities and rights relating to the operation of Colstrip Units 3 and 4. Under the terms of that agreement, each party is responsible for 15% of the total non-coal operating and construction costs of Colstrip Units 3 and 4, regardless of whether a particular cost is specific to Colstrip Unit 3 or 4, and is entitled to take up to the same percentage of the available generation from Units 3 and 4.

LG And E And KU Energy LLC [Member]

Jointly Owned Facilities [Line Items]

Jointly Owned Facilities

12. Jointly Owned Facilities

(All Registrants except PPL Electric)

At December 31, 2014 and 2013, the Balance Sheets reflect the owned interests in the facilities listed below.

										Construction
			Ownership			Other		Accumulated		Work
			Interest	Electric Plant		Property		Depreciation		in Progress
PPL
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
		Trimble County Units 1 & 2	75.00%		1,311				173		91
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
		Trimble County Units 1 & 2	75.00%		1,288				144		54
	Merrill Creek Reservoir		8.37%			$	22		16

PPL Energy Supply
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
	Merrill Creek Reservoir		8.37%			$	22		16

LKE
	December 31, 2014
	Generating Plants
		Trimble County Unit 1	75.00%	$	309	$	51	$	59
		Trimble County Unit 2	75.00%		1,002		122		32
	December 31, 2013
	Generating Plants
		Trimble County Unit 1	75.00%	$	308	$	42	$	18
		Trimble County Unit 2	75.00%		980		102		36
LG&E
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	10
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		47		7
		Trimble County Unit 1	75.00%		309		51	$	59
		Trimble County Unit 2	14.25%		205		23		15
		Trimble County Units 5-6	29.00%		29		5
		Trimble County Units 7-10	37.00%		70		11
		Cane Run Unit 7	22.00%						113
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	7	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		46		5		1
		Trimble County Unit 1	75.00%		308		42		18
		Trimble County Unit 2	14.25%		200		19		14
		Trimble County Units 5-6	29.00%		29		3
		Trimble County Units 7-10	37.00%		69		7		1
		Cane Run Unit 7	22.00%						91
KU
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	65	$	15	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		6
		Trimble County Unit 2	60.75%		797		98		17
		Trimble County Units 5-6	71.00%		70		11
		Trimble County Units 7-10	63.00%		120		18		1
		Cane Run Unit 7	78.00%						403
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	64	$	11	$	2
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		4		1
		Trimble County Unit 2	60.75%		780		83		22
		Trimble County Units 5-6	71.00%		70		8
		Trimble County Units 7-10	63.00%		118		12		2
		Cane Run Unit 7	78.00%						317

Each subsidiary owning these interests provides its own funding for its share of the facility. Each receives a portion of the total output of the generating plants equal to its percentage ownership. The share of fuel and other operating costs associated with the plants is included in the corresponding operating expenses on the Statements of Income.

In addition to the interests mentioned above, at December 31, 2014 and 2013, PPL Montana had a 50%ownership interest in Colstrip Units 1 and 2 and a 30%ownership interest in Colstrip Unit 3. The book value of these assets was not significant. At December 31, 2014 and 2013, NorthWestern owned a 30%interest in Colstrip Unit 4. PPL Montana and NorthWestern have a sharing agreement that governs each party's responsibilities and rights relating to the operation of Colstrip Units 3 and 4. Under the terms of that agreement, each party is responsible for 15% of the total non-coal operating and construction costs of Colstrip Units 3 and 4, regardless of whether a particular cost is specific to Colstrip Unit 3 or 4, and is entitled to take up to the same percentage of the available generation from Units 3 and 4.

Louisville Gas And Electric Co [Member]

Jointly Owned Facilities [Line Items]

Jointly Owned Facilities

12. Jointly Owned Facilities

(All Registrants except PPL Electric)

At December 31, 2014 and 2013, the Balance Sheets reflect the owned interests in the facilities listed below.

										Construction
			Ownership			Other		Accumulated		Work
			Interest	Electric Plant		Property		Depreciation		in Progress
PPL
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
		Trimble County Units 1 & 2	75.00%		1,311				173		91
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
		Trimble County Units 1 & 2	75.00%		1,288				144		54
	Merrill Creek Reservoir		8.37%			$	22		16

PPL Energy Supply
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
	Merrill Creek Reservoir		8.37%			$	22		16

LKE
	December 31, 2014
	Generating Plants
		Trimble County Unit 1	75.00%	$	309	$	51	$	59
		Trimble County Unit 2	75.00%		1,002		122		32
	December 31, 2013
	Generating Plants
		Trimble County Unit 1	75.00%	$	308	$	42	$	18
		Trimble County Unit 2	75.00%		980		102		36
LG&E
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	10
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		47		7
		Trimble County Unit 1	75.00%		309		51	$	59
		Trimble County Unit 2	14.25%		205		23		15
		Trimble County Units 5-6	29.00%		29		5
		Trimble County Units 7-10	37.00%		70		11
		Cane Run Unit 7	22.00%						113
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	7	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		46		5		1
		Trimble County Unit 1	75.00%		308		42		18
		Trimble County Unit 2	14.25%		200		19		14
		Trimble County Units 5-6	29.00%		29		3
		Trimble County Units 7-10	37.00%		69		7		1
		Cane Run Unit 7	22.00%						91
KU
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	65	$	15	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		6
		Trimble County Unit 2	60.75%		797		98		17
		Trimble County Units 5-6	71.00%		70		11
		Trimble County Units 7-10	63.00%		120		18		1
		Cane Run Unit 7	78.00%						403
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	64	$	11	$	2
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		4		1
		Trimble County Unit 2	60.75%		780		83		22
		Trimble County Units 5-6	71.00%		70		8
		Trimble County Units 7-10	63.00%		118		12		2
		Cane Run Unit 7	78.00%						317

Each subsidiary owning these interests provides its own funding for its share of the facility. Each receives a portion of the total output of the generating plants equal to its percentage ownership. The share of fuel and other operating costs associated with the plants is included in the corresponding operating expenses on the Statements of Income.

In addition to the interests mentioned above, at December 31, 2014 and 2013, PPL Montana had a 50%ownership interest in Colstrip Units 1 and 2 and a 30%ownership interest in Colstrip Unit 3. The book value of these assets was not significant. At December 31, 2014 and 2013, NorthWestern owned a 30%interest in Colstrip Unit 4. PPL Montana and NorthWestern have a sharing agreement that governs each party's responsibilities and rights relating to the operation of Colstrip Units 3 and 4. Under the terms of that agreement, each party is responsible for 15% of the total non-coal operating and construction costs of Colstrip Units 3 and 4, regardless of whether a particular cost is specific to Colstrip Unit 3 or 4, and is entitled to take up to the same percentage of the available generation from Units 3 and 4.

Kentucky Utilities Co [Member]

Jointly Owned Facilities [Line Items]

Jointly Owned Facilities

12. Jointly Owned Facilities

(All Registrants except PPL Electric)

At December 31, 2014 and 2013, the Balance Sheets reflect the owned interests in the facilities listed below.

										Construction
			Ownership			Other		Accumulated		Work
			Interest	Electric Plant		Property		Depreciation		in Progress
PPL
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
		Trimble County Units 1 & 2	75.00%		1,311				173		91
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
		Trimble County Units 1 & 2	75.00%		1,288				144		54
	Merrill Creek Reservoir		8.37%			$	22		16

PPL Energy Supply
	December 31, 2014
	Generating Plants
		Susquehanna	90.00%	$	4,746			$	3,591	$	117
		Conemaugh	16.25%		330				141		2
		Keystone	12.34%		213				102		2
	Merrill Creek Reservoir		8.37%			$	22		15
	December 31, 2013
	Generating Plants
		Susquehanna	90.00%	$	4,686			$	3,545	$	76
		Conemaugh	16.25%		247				131		63
		Keystone	12.34%		207				91		2
	Merrill Creek Reservoir		8.37%			$	22		16

LKE
	December 31, 2014
	Generating Plants
		Trimble County Unit 1	75.00%	$	309	$	51	$	59
		Trimble County Unit 2	75.00%		1,002		122		32
	December 31, 2013
	Generating Plants
		Trimble County Unit 1	75.00%	$	308	$	42	$	18
		Trimble County Unit 2	75.00%		980		102		36
LG&E
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	10
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		47		7
		Trimble County Unit 1	75.00%		309		51	$	59
		Trimble County Unit 2	14.25%		205		23		15
		Trimble County Units 5-6	29.00%		29		5
		Trimble County Units 7-10	37.00%		70		11
		Cane Run Unit 7	22.00%						113
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	38.00%	$	40	$	7	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	53.00%		46		5		1
		Trimble County Unit 1	75.00%		308		42		18
		Trimble County Unit 2	14.25%		200		19		14
		Trimble County Units 5-6	29.00%		29		3
		Trimble County Units 7-10	37.00%		69		7		1
		Cane Run Unit 7	22.00%						91
KU
	December 31, 2014
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	65	$	15	$	1
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		6
		Trimble County Unit 2	60.75%		797		98		17
		Trimble County Units 5-6	71.00%		70		11
		Trimble County Units 7-10	63.00%		120		18		1
		Cane Run Unit 7	78.00%						403
	December 31, 2013
	Generating Plants
		E.W. Brown Units 6-7	62.00%	$	64	$	11	$	2
		Paddy's Run Unit 13 & E.W. Brown Unit 5	47.00%		42		4		1
		Trimble County Unit 2	60.75%		780		83		22
		Trimble County Units 5-6	71.00%		70		8
		Trimble County Units 7-10	63.00%		118		12		2
		Cane Run Unit 7	78.00%						317

Each subsidiary owning these interests provides its own funding for its share of the facility. Each receives a portion of the total output of the generating plants equal to its percentage ownership. The share of fuel and other operating costs associated with the plants is included in the corresponding operating expenses on the Statements of Income.

In addition to the interests mentioned above, at December 31, 2014 and 2013, PPL Montana had a 50%ownership interest in Colstrip Units 1 and 2 and a 30%ownership interest in Colstrip Unit 3. The book value of these assets was not significant. At December 31, 2014 and 2013, NorthWestern owned a 30%interest in Colstrip Unit 4. PPL Montana and NorthWestern have a sharing agreement that governs each party's responsibilities and rights relating to the operation of Colstrip Units 3 and 4. Under the terms of that agreement, each party is responsible for 15% of the total non-coal operating and construction costs of Colstrip Units 3 and 4, regardless of whether a particular cost is specific to Colstrip Unit 3 or 4, and is entitled to take up to the same percentage of the available generation from Units 3 and 4.