CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions |
Jun. 30, 2019 |
Dec. 31, 2018 |
Assets, Current [Abstract] |
|
|
|
Cash and cash equivalents |
|
$ 406
|
$ 621
|
Accounts receivable (less reserve:) |
|
|
|
Customer |
|
662
|
663
|
Other |
|
110
|
107
|
Unbilled revenues |
|
425
|
496
|
Fuel, materials and supplies |
|
286
|
303
|
Prepayments |
|
142
|
70
|
Price risk management assets |
|
133
|
109
|
Regulatory assets |
|
43
|
36
|
Other current assets |
|
67
|
63
|
Total Current Assets |
|
2,231
|
2,432
|
Property, Plant and Equipment |
|
|
|
Regulated utility plant |
|
40,793
|
39,734
|
Less: accumulated depreciation - regulated utility plant |
|
7,583
|
7,310
|
Regulated utility plant, net |
|
33,210
|
32,424
|
Non-regulated property, plant and equipment |
|
342
|
355
|
Less: accumulated depreciation - non-regulated property, plant and equipment |
|
104
|
101
|
Non-regulated property, plant and equipment, net |
|
238
|
254
|
Construction work in progress |
|
1,682
|
1,780
|
Property, Plant and Equipment, net |
|
35,130
|
34,458
|
Other Noncurrent Assets |
|
|
|
Regulatory assets |
|
1,662
|
1,673
|
Goodwill |
|
3,139
|
3,162
|
Other intangibles |
|
710
|
716
|
Pension benefit asset |
|
832
|
535
|
Price risk management assets |
|
209
|
228
|
Other noncurrent assets |
|
291
|
192
|
Total Other Noncurrent Assets |
|
6,843
|
6,506
|
Total Assets |
|
44,204
|
43,396
|
Current Liabilities |
|
|
|
Short-term debt |
|
1,636
|
1,430
|
Long-term debt due within one year |
|
136
|
530
|
Accounts payable |
|
830
|
989
|
Taxes |
|
111
|
110
|
Interest |
|
215
|
278
|
Dividends |
|
298
|
296
|
Customer deposits |
|
265
|
257
|
Regulatory liabilities |
|
60
|
122
|
Other current liabilities |
|
512
|
551
|
Total Current Liabilities |
|
4,063
|
4,563
|
Long-term Debt |
|
|
|
Long-term Debt |
|
20,965
|
20,069
|
Deferred Credits and Other Noncurrent Liabilities |
|
|
|
Deferred income taxes |
|
2,986
|
2,796
|
Investment tax credits |
|
125
|
126
|
Accrued pension obligations |
|
716
|
771
|
Asset retirement obligations |
|
223
|
264
|
Regulatory liabilities |
|
2,685
|
2,714
|
Other deferred credits and noncurrent liabilities |
|
458
|
436
|
Total Deferred Credits and Other Noncurrent Liabilities |
|
7,193
|
7,107
|
Commitments and Contingent Liabilities |
|
|
|
Equity |
|
|
|
Common stock |
[1] |
7
|
7
|
Additional paid-in capital |
|
11,069
|
11,021
|
Earnings reinvested |
|
4,903
|
4,593
|
Accumulated other comprehensive loss |
|
(3,996)
|
(3,964)
|
Total Equity |
|
11,983
|
11,657
|
Total Liabilities and Equity |
|
44,204
|
43,396
|
PPL Electric Utilities Corp [Member] |
|
|
|
Assets, Current [Abstract] |
|
|
|
Cash and cash equivalents |
|
20
|
267
|
Accounts receivable (less reserve:) |
|
|
|
Customer |
|
286
|
264
|
Other |
|
21
|
38
|
Accounts receivable from affiliates |
|
10
|
11
|
Unbilled revenues |
|
89
|
120
|
Fuel, materials and supplies |
|
26
|
25
|
Prepayments |
|
62
|
5
|
Regulatory assets |
|
17
|
11
|
Other current assets |
|
8
|
9
|
Total Current Assets |
|
539
|
750
|
Property, Plant and Equipment |
|
|
|
Regulated utility plant |
|
12,036
|
11,637
|
Less: accumulated depreciation - regulated utility plant |
|
2,961
|
2,856
|
Regulated utility plant, net |
|
9,075
|
8,781
|
Construction work in progress |
|
627
|
586
|
Property, Plant and Equipment, net |
|
9,702
|
9,367
|
Other Noncurrent Assets |
|
|
|
Regulatory assets |
|
805
|
824
|
Other intangibles |
|
260
|
260
|
Other noncurrent assets |
|
48
|
42
|
Total Other Noncurrent Assets |
|
1,113
|
1,126
|
Total Assets |
|
11,354
|
11,243
|
Current Liabilities |
|
|
|
Short-term debt |
|
185
|
0
|
Accounts payable |
|
374
|
418
|
Accounts payable to affiliates |
|
30
|
25
|
Taxes |
|
8
|
12
|
Interest |
|
37
|
37
|
Regulatory liabilities |
|
43
|
74
|
Other current liabilities |
|
95
|
101
|
Total Current Liabilities |
|
772
|
667
|
Long-term Debt |
|
|
|
Long-term Debt |
|
3,695
|
3,694
|
Deferred Credits and Other Noncurrent Liabilities |
|
|
|
Deferred income taxes |
|
1,371
|
1,320
|
Accrued pension obligations |
|
253
|
282
|
Regulatory liabilities |
|
661
|
675
|
Other deferred credits and noncurrent liabilities |
|
141
|
144
|
Total Deferred Credits and Other Noncurrent Liabilities |
|
2,426
|
2,421
|
Commitments and Contingent Liabilities |
|
|
|
Equity |
|
|
|
Common stock |
[2] |
364
|
364
|
Additional paid-in capital |
|
3,158
|
3,158
|
Earnings reinvested |
|
939
|
939
|
Total Equity |
|
4,461
|
4,461
|
Total Liabilities and Equity |
|
11,354
|
11,243
|
LG And E And KU Energy LLC [Member] |
|
|
|
Assets, Current [Abstract] |
|
|
|
Cash and cash equivalents |
|
32
|
24
|
Accounts receivable (less reserve:) |
|
|
|
Customer |
|
219
|
239
|
Other |
|
69
|
63
|
Accounts receivable from affiliates |
|
1
|
0
|
Unbilled revenues |
|
156
|
169
|
Fuel, materials and supplies |
|
228
|
248
|
Prepayments |
|
30
|
25
|
Regulatory assets |
|
26
|
25
|
Total Current Assets |
|
761
|
793
|
Property, Plant and Equipment |
|
|
|
Regulated utility plant |
|
14,072
|
13,721
|
Less: accumulated depreciation - regulated utility plant |
|
2,192
|
2,125
|
Regulated utility plant, net |
|
11,880
|
11,596
|
Construction work in progress |
|
929
|
1,018
|
Property, Plant and Equipment, net |
|
12,809
|
12,614
|
Other Noncurrent Assets |
|
|
|
Regulatory assets |
|
857
|
849
|
Goodwill |
|
996
|
996
|
Other intangibles |
|
74
|
78
|
Other noncurrent assets |
|
133
|
82
|
Total Other Noncurrent Assets |
|
2,060
|
2,005
|
Total Assets |
|
15,630
|
15,412
|
Current Liabilities |
|
|
|
Short-term debt |
|
96
|
514
|
Long-term debt due within one year |
|
136
|
530
|
Notes payable with affiliates |
|
203
|
113
|
Accounts payable |
|
283
|
366
|
Accounts payable to affiliates |
|
8
|
9
|
Taxes |
|
38
|
63
|
Price risk management liabilities |
|
5
|
4
|
Interest |
|
39
|
32
|
Customer deposits |
|
63
|
61
|
Regulatory liabilities |
|
17
|
48
|
Asset retirement obligations |
|
80
|
82
|
Other current liabilities |
|
136
|
126
|
Total Current Liabilities |
|
1,104
|
1,948
|
Long-term Debt |
|
|
|
Long-term debt |
|
5,216
|
4,322
|
Long-term debt to affiliate |
|
650
|
650
|
Long-term Debt |
|
5,866
|
4,972
|
Deferred Credits and Other Noncurrent Liabilities |
|
|
|
Deferred income taxes |
|
1,020
|
956
|
Investment tax credits |
|
124
|
126
|
Accrued pension obligations |
|
264
|
282
|
Asset retirement obligations |
|
175
|
214
|
Regulatory liabilities |
|
2,024
|
2,039
|
Price risk management liabilities |
|
18
|
16
|
Other deferred credits and noncurrent liabilities |
|
158
|
136
|
Total Deferred Credits and Other Noncurrent Liabilities |
|
3,783
|
3,769
|
Commitments and Contingent Liabilities |
|
|
|
Equity |
|
|
|
Member's Equity |
|
4,877
|
4,723
|
Total Liabilities and Equity |
|
15,630
|
15,412
|
Louisville Gas And Electric Co [Member] |
|
|
|
Assets, Current [Abstract] |
|
|
|
Cash and cash equivalents |
|
9
|
10
|
Accounts receivable (less reserve:) |
|
|
|
Customer |
|
99
|
110
|
Other |
|
38
|
30
|
Accounts receivable from affiliates |
|
18
|
24
|
Unbilled revenues |
|
68
|
77
|
Fuel, materials and supplies |
|
100
|
127
|
Prepayments |
|
15
|
12
|
Regulatory assets |
|
21
|
21
|
Total Current Assets |
|
368
|
411
|
Property, Plant and Equipment |
|
|
|
Regulated utility plant |
|
6,018
|
5,816
|
Less: accumulated depreciation - regulated utility plant |
|
786
|
741
|
Regulated utility plant, net |
|
5,232
|
5,075
|
Construction work in progress |
|
438
|
514
|
Property, Plant and Equipment, net |
|
5,670
|
5,589
|
Other Noncurrent Assets |
|
|
|
Regulatory assets |
|
434
|
431
|
Goodwill |
|
389
|
389
|
Other intangibles |
|
44
|
47
|
Other noncurrent assets |
|
34
|
16
|
Total Other Noncurrent Assets |
|
901
|
883
|
Total Assets |
|
6,939
|
6,883
|
Current Liabilities |
|
|
|
Short-term debt |
|
96
|
279
|
Long-term debt due within one year |
|
40
|
434
|
Accounts payable |
|
146
|
172
|
Accounts payable to affiliates |
|
22
|
26
|
Taxes |
|
19
|
26
|
Price risk management liabilities |
|
5
|
4
|
Interest |
|
15
|
11
|
Customer deposits |
|
30
|
29
|
Regulatory liabilities |
|
4
|
17
|
Asset retirement obligations |
|
26
|
23
|
Other current liabilities |
|
47
|
39
|
Total Current Liabilities |
|
450
|
1,060
|
Long-term Debt |
|
|
|
Long-term Debt |
|
1,964
|
1,375
|
Deferred Credits and Other Noncurrent Liabilities |
|
|
|
Deferred income taxes |
|
663
|
628
|
Investment tax credits |
|
34
|
34
|
Asset retirement obligations |
|
63
|
80
|
Regulatory liabilities |
|
902
|
915
|
Price risk management liabilities |
|
18
|
16
|
Other deferred credits and noncurrent liabilities |
|
96
|
88
|
Total Deferred Credits and Other Noncurrent Liabilities |
|
1,776
|
1,761
|
Commitments and Contingent Liabilities |
|
|
|
Equity |
|
|
|
Common stock |
[3] |
424
|
424
|
Additional paid-in capital |
|
1,820
|
1,795
|
Earnings reinvested |
|
505
|
468
|
Total Equity |
|
2,749
|
2,687
|
Total Liabilities and Equity |
|
6,939
|
6,883
|
Kentucky Utilities Co [Member] |
|
|
|
Assets, Current [Abstract] |
|
|
|
Cash and cash equivalents |
|
23
|
14
|
Accounts receivable (less reserve:) |
|
|
|
Customer |
|
120
|
129
|
Other |
|
27
|
34
|
Unbilled revenues |
|
88
|
92
|
Fuel, materials and supplies |
|
128
|
121
|
Prepayments |
|
16
|
11
|
Regulatory assets |
|
5
|
4
|
Total Current Assets |
|
407
|
405
|
Property, Plant and Equipment |
|
|
|
Regulated utility plant |
|
8,042
|
7,895
|
Less: accumulated depreciation - regulated utility plant |
|
1,403
|
1,382
|
Regulated utility plant, net |
|
6,639
|
6,513
|
Construction work in progress |
|
490
|
503
|
Property, Plant and Equipment, net |
|
7,129
|
7,016
|
Other Noncurrent Assets |
|
|
|
Regulatory assets |
|
423
|
418
|
Goodwill |
|
607
|
607
|
Other intangibles |
|
30
|
31
|
Other noncurrent assets |
|
95
|
63
|
Total Other Noncurrent Assets |
|
1,155
|
1,119
|
Total Assets |
|
8,691
|
8,540
|
Current Liabilities |
|
|
|
Short-term debt |
|
0
|
235
|
Long-term debt due within one year |
|
96
|
96
|
Accounts payable |
|
124
|
171
|
Accounts payable to affiliates |
|
38
|
53
|
Taxes |
|
22
|
24
|
Interest |
|
19
|
16
|
Customer deposits |
|
33
|
32
|
Regulatory liabilities |
|
13
|
31
|
Asset retirement obligations |
|
54
|
59
|
Other current liabilities |
|
55
|
35
|
Total Current Liabilities |
|
454
|
752
|
Long-term Debt |
|
|
|
Long-term Debt |
|
2,528
|
2,225
|
Deferred Credits and Other Noncurrent Liabilities |
|
|
|
Deferred income taxes |
|
774
|
735
|
Investment tax credits |
|
90
|
92
|
Asset retirement obligations |
|
112
|
134
|
Regulatory liabilities |
|
1,122
|
1,124
|
Other deferred credits and noncurrent liabilities |
|
50
|
36
|
Total Deferred Credits and Other Noncurrent Liabilities |
|
2,148
|
2,121
|
Commitments and Contingent Liabilities |
|
|
|
Equity |
|
|
|
Common stock |
[4] |
308
|
308
|
Additional paid-in capital |
|
2,729
|
2,661
|
Earnings reinvested |
|
524
|
473
|
Total Equity |
|
3,561
|
3,442
|
Total Liabilities and Equity |
|
$ 8,691
|
$ 8,540
|
|
|