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Financing Activities (Tables)
 3 Months Ended
Mar. 31, 2020
Debt Disclosure [Abstract]  
Schedule of Line of Credit Facilities The following credit facilities were in place at:
 
March 31, 2020
 
December 31, 2019
 
Expiration
Date
 
Capacity
 
Borrowed
 
Letters of
Credit
and
Commercial
Paper
Issued
 
Unused
Capacity
 
Borrowed
 
Letters of
Credit
and
Commercial
Paper
Issued
PPL
 
 
 

 
 

 
 

 
 

 
 

 
 

U.K.
 
 
 

 
 

 
 

 
 

 
 

 
 

WPD plc
 
 
 

 
 

 
 

 
 

 
 

 
 

Syndicated Credit Facility (a)
Jan. 2023
 
£
210

 
£
156

 
£
—

 
£
56

 
£
155

 
£
—

WPD (South West)
 
 
 

 
 

 
 

 
 

 
 

 
 

Syndicated Credit Facility (b)
July 2021
 
245

 
—

 
—

 
245

 
40

 
—

WPD (East Midlands)
 
 
 

 
 

 
 

 
 

 
 

 
 

Syndicated Credit Facility
July 2021
 
300

 
—

 
—

 
300

 
—

 
—

WPD (West Midlands)
 
 
 

 
 

 
 

 
 

 
 

 
 

Syndicated Credit Facility (c)
July 2021
 
300

 
54

 
—

 
246

 
48

 
—

Uncommitted Credit Facilities
 
 
100

 
—

 
4

 
96

 
—

 
4

Total U.K. Credit Facilities (d)
 
 
£
1,155

 
£
210

 
£
4

 
£
943

 
£
243

 
£
4

U.S.
 
 
 
 
 
 
 
 
 
 
 
 
 
PPL Capital Funding (e)
 
 
 
 
 
 
 
 
 
 
 
 
 
Syndicated Credit Facility
Jan. 2024
 
$
1,450

 
$
575

 
$
180

 
$
695

 
$
—

 
$
450

Term Loan Credit Facility
Mar. 2021
 
200

 
200

 
—

 
—

 
—

 
—

Bilateral Credit Facility
Mar. 2021
 
50

 
50

 
—

 
—

 
—

 
—

Bilateral Credit Facility
Mar. 2021
 
50

 
34

 
15

 
1

 
—

 
15

Total PPL Capital Funding Credit Facilities
 
 
$
1,750

 
$
859

 
$
195

 
$
696

 
$
—

 
$
465

 
 
 
 
 
 
 
 
 
 
 
 
 
 
PPL Electric
 
 
 

 
 

 
 

 
 

 
 

 
 

Syndicated Credit Facility (f)
Jan. 2024
 
$
650

 
$
85

 
$
1

 
$
564

 
$
—

 
$
1

 
 
 
 
 
 
 
 
 
 
 
 
 
 
LG&E
 
 
 

 
 

 
 

 
 

 
 

 
 
Syndicated Credit Facility (g)
Jan. 2024
 
$
500

 
$
100

 
$
59

 
$
341

 
$
—

 
$
238

Total LG&E Credit Facilities
 
 
$
500

 
$
100

 
$
59

 
$
341

 
$
—

 
$
238

 
 
 
 
 
 
 
 
 
 
 
 
 
 
KU
 
 
 

 
 

 
 

 
 

 
 

 
 

Syndicated Credit Facility (g)
Jan. 2024
 
$
400

 
$
100

 
$
44

 
$
256

 
$
—

 
$
150

Total KU Credit Facilities
 
 
$
400

 
$
100

 
$
44

 
$
256

 
$
—

 
$
150

 
(a)
The amounts borrowed at March 31, 2020 and December 31, 2019 were USD-denominated borrowings of $200 million for both periods, which bore interest at 2.43% and 2.52%. The interest rates on the borrowings are equal to one-month USD LIBOR plus a spread. The unused capacity reflects the amounts borrowed in GBP of £154 million as of the date borrowed.
(b)
The amount borrowed at December 31, 2019 was GBP-denominated borrowings which equated to $51 million and bore interest at 1.09%.
(c)
The amount borrowed at March 31, 2020 and December 31, 2019 were GBP-denominated borrowings which equated to $69 million and $62 million and bore interest at 1.11%. The interest rates on the borrowings are equal to one-month GBP LIBOR plus a margin.
(d)
At March 31, 2020, the unused capacity under the U.K. credit facilities was $1.2 billion.
(e)
The interest rates on the borrowings are based on one-month LIBOR plus a spread, which resulted in a weighted-average rate of 1.97% at March 31, 2020.
(f)
The interest rate on the borrowing is equal to one-month LIBOR plus a spread, which was 1.96% at March 31, 2020.
(g)
The interest rates on the borrowings are equal to one-month LIBOR plus a spread, which were 1.81% at March 31, 2020.
Schedule of Short-term Debt The following commercial paper programs were in place at:
 
March 31, 2020
 
December 31, 2019
 
Weighted -
Average
Interest Rate
 
Capacity
 
Commercial
Paper
Issuances
 
Unused
Capacity
 
Weighted -
Average
Interest Rate
 
Commercial
Paper
Issuances
PPL Capital Funding
1.91%
 
$
1,500

 
$
180

 
$
1,320

 
2.13%
 
$
450

PPL Electric 

 
650

 
—

 
650

 

 
—

LG&E
1.71%
 
350

 
59

 
291

 
2.07%
 
238

KU
1.65%
 
350

 
44

 
306

 
2.02%
 
150

Total
 
 
$
2,850

 
$
283

 
$
2,567

 
 
 
$
838