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Jointly Owned Utility Facilities (Tables)
 12 Months Ended
Dec. 31, 2018
Jointly Owned Facilities [Line Items]  
Jointly Owned Utility Facilities
At December 31, 2018 and 2017, the Balance Sheets reflect the owned interests in the facilities listed below.
 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
PPL and LKE
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
Trimble County Unit 1
75.00
%
 
$
427

 
$
77

 
$
—

 
Trimble County Unit 2
75.00
%
 
1,063

 
199

 
293

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
Trimble County Unit 1
75.00
%
 
$
427

 
$
69

 
$
1

 
Trimble County Unit 2
75.00
%
 
1,032

 
176

 
198

 
 
 
 
 
 
 
 
 
LG&E
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
20

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
51

 
17

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
77

 
—

 
Trimble County Unit 2
14.25
%
 
226

 
39

 
152

 
Trimble County Units 5-6
29.00
%
 
32

 
11

 
—

 
Trimble County Units 7-10
37.00
%
 
77

 
24

 
—

 
Cane Run Unit 7
22.00
%
 
119

 
9

 
—

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
17

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
52

 
15

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
69

 
1

 
Trimble County Unit 2
14.25
%
 
215

 
36

 
102

 
Trimble County Units 5-6
29.00
%
 
32

 
9

 
—

 
Trimble County Units 7-10
37.00
%
 
73

 
21

 
—

 
Cane Run Unit 7
22.00
%
 
120

 
8

 
1

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
KU
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
31

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
15

 
—

 
Trimble County Unit 2
60.75
%
 
837

 
160

 
141

 
Trimble County Units 5-6
71.00
%
 
76

 
25

 
—

 
Trimble County Units 7-10
63.00
%
 
129

 
41

 
—

 
Cane Run Unit 7
78.00
%
 
428

 
36

 
—

 
E.W. Brown Solar Unit
61.00
%
 
16

 
2

 
—

 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
27

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
13

 
—

 
Trimble County Unit 2
60.75
%
 
817

 
140

 
96

 
Trimble County Units 5-6
71.00
%
 
76

 
20

 
—

 
Trimble County Units 7-10
63.00
%
 
120

 
34

 
—

 
Cane Run Unit 7
78.00
%
 
431

 
31

 
4

 
E.W. Brown Solar Unit
61.00
%
 
16

 
1

 
—
LG And E And KU Energy LLC [Member]  
Jointly Owned Facilities [Line Items]  
Jointly Owned Utility Facilities
At December 31, 2018 and 2017, the Balance Sheets reflect the owned interests in the facilities listed below.
 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
PPL and LKE
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
Trimble County Unit 1
75.00
%
 
$
427

 
$
77

 
$
—

 
Trimble County Unit 2
75.00
%
 
1,063

 
199

 
293

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
Trimble County Unit 1
75.00
%
 
$
427

 
$
69

 
$
1

 
Trimble County Unit 2
75.00
%
 
1,032

 
176

 
198

 
 
 
 
 
 
 
 
 
LG&E
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
20

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
51

 
17

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
77

 
—

 
Trimble County Unit 2
14.25
%
 
226

 
39

 
152

 
Trimble County Units 5-6
29.00
%
 
32

 
11

 
—

 
Trimble County Units 7-10
37.00
%
 
77

 
24

 
—

 
Cane Run Unit 7
22.00
%
 
119

 
9

 
—

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
17

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
52

 
15

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
69

 
1

 
Trimble County Unit 2
14.25
%
 
215

 
36

 
102

 
Trimble County Units 5-6
29.00
%
 
32

 
9

 
—

 
Trimble County Units 7-10
37.00
%
 
73

 
21

 
—

 
Cane Run Unit 7
22.00
%
 
120

 
8

 
1

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
KU
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
31

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
15

 
—

 
Trimble County Unit 2
60.75
%
 
837

 
160

 
141

 
Trimble County Units 5-6
71.00
%
 
76

 
25

 
—

 
Trimble County Units 7-10
63.00
%
 
129

 
41

 
—

 
Cane Run Unit 7
78.00
%
 
428

 
36

 
—

 
E.W. Brown Solar Unit
61.00
%
 
16

 
2

 
—

 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
27

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
13

 
—

 
Trimble County Unit 2
60.75
%
 
817

 
140

 
96

 
Trimble County Units 5-6
71.00
%
 
76

 
20

 
—

 
Trimble County Units 7-10
63.00
%
 
120

 
34

 
—

 
Cane Run Unit 7
78.00
%
 
431

 
31

 
4

 
E.W. Brown Solar Unit
61.00
%
 
16

 
1

 
—
Louisville Gas And Electric Co [Member]  
Jointly Owned Facilities [Line Items]  
Jointly Owned Utility Facilities
At December 31, 2018 and 2017, the Balance Sheets reflect the owned interests in the facilities listed below.
 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
PPL and LKE
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
Trimble County Unit 1
75.00
%
 
$
427

 
$
77

 
$
—

 
Trimble County Unit 2
75.00
%
 
1,063

 
199

 
293

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
Trimble County Unit 1
75.00
%
 
$
427

 
$
69

 
$
1

 
Trimble County Unit 2
75.00
%
 
1,032

 
176

 
198

 
 
 
 
 
 
 
 
 
LG&E
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
20

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
51

 
17

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
77

 
—

 
Trimble County Unit 2
14.25
%
 
226

 
39

 
152

 
Trimble County Units 5-6
29.00
%
 
32

 
11

 
—

 
Trimble County Units 7-10
37.00
%
 
77

 
24

 
—

 
Cane Run Unit 7
22.00
%
 
119

 
9

 
—

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
17

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
52

 
15

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
69

 
1

 
Trimble County Unit 2
14.25
%
 
215

 
36

 
102

 
Trimble County Units 5-6
29.00
%
 
32

 
9

 
—

 
Trimble County Units 7-10
37.00
%
 
73

 
21

 
—

 
Cane Run Unit 7
22.00
%
 
120

 
8

 
1

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
KU
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
31

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
15

 
—

 
Trimble County Unit 2
60.75
%
 
837

 
160

 
141

 
Trimble County Units 5-6
71.00
%
 
76

 
25

 
—

 
Trimble County Units 7-10
63.00
%
 
129

 
41

 
—

 
Cane Run Unit 7
78.00
%
 
428

 
36

 
—

 
E.W. Brown Solar Unit
61.00
%
 
16

 
2

 
—

 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
27

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
13

 
—

 
Trimble County Unit 2
60.75
%
 
817

 
140

 
96

 
Trimble County Units 5-6
71.00
%
 
76

 
20

 
—

 
Trimble County Units 7-10
63.00
%
 
120

 
34

 
—

 
Cane Run Unit 7
78.00
%
 
431

 
31

 
4

 
E.W. Brown Solar Unit
61.00
%
 
16

 
1

 
—
Kentucky Utilities Co [Member]  
Jointly Owned Facilities [Line Items]  
Jointly Owned Utility Facilities
At December 31, 2018 and 2017, the Balance Sheets reflect the owned interests in the facilities listed below.
 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
PPL and LKE
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
Trimble County Unit 1
75.00
%
 
$
427

 
$
77

 
$
—

 
Trimble County Unit 2
75.00
%
 
1,063

 
199

 
293

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
Trimble County Unit 1
75.00
%
 
$
427

 
$
69

 
$
1

 
Trimble County Unit 2
75.00
%
 
1,032

 
176

 
198

 
 
 
 
 
 
 
 
 
LG&E
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
20

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
51

 
17

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
77

 
—

 
Trimble County Unit 2
14.25
%
 
226

 
39

 
152

 
Trimble County Units 5-6
29.00
%
 
32

 
11

 
—

 
Trimble County Units 7-10
37.00
%
 
77

 
24

 
—

 
Cane Run Unit 7
22.00
%
 
119

 
9

 
—

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
38.00
%
 
$
41

 
$
17

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
53.00
%
 
52

 
15

 
—

 
Trimble County Unit 1
75.00
%
 
427

 
69

 
1

 
Trimble County Unit 2
14.25
%
 
215

 
36

 
102

 
Trimble County Units 5-6
29.00
%
 
32

 
9

 
—

 
Trimble County Units 7-10
37.00
%
 
73

 
21

 
—

 
Cane Run Unit 7
22.00
%
 
120

 
8

 
1

 
E.W. Brown Solar Unit
39.00
%
 
10

 
1

 
—

 
 
 
 
 
 
 
 
 
KU
 
 
 
 
 
 
 
 
December 31, 2018
 
 
 
 
 
 
 
 
Generating Plants
 
 
 
 
 
 
 
 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
31

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
15

 
—

 
Trimble County Unit 2
60.75
%
 
837

 
160

 
141

 
Trimble County Units 5-6
71.00
%
 
76

 
25

 
—

 
Trimble County Units 7-10
63.00
%
 
129

 
41

 
—

 
Cane Run Unit 7
78.00
%
 
428

 
36

 
—

 
E.W. Brown Solar Unit
61.00
%
 
16

 
2

 
—

 
 
Ownership
Interest
 
Electric Plant
 
Accumulated
Depreciation
 
Construction
Work
in Progress
 
 
 
 
 
 
 
 
 
 
December 31, 2017
 

 
 

 
 

 
 

 
Generating Plants
 

 
 

 
 

 
 

 
E.W. Brown Units 6-7
62.00
%
 
$
66

 
$
27

 
$
—

 
Paddy's Run Unit 13 & E.W. Brown Unit 5
47.00
%
 
46

 
13

 
—

 
Trimble County Unit 2
60.75
%
 
817

 
140

 
96

 
Trimble County Units 5-6
71.00
%
 
76

 
20

 
—

 
Trimble County Units 7-10
63.00
%
 
120

 
34

 
—

 
Cane Run Unit 7
78.00
%
 
431

 
31

 
4

 
E.W. Brown Solar Unit
61.00
%
 
16

 
1

 
—