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v3.20.4

Financing Activities - Credit Arrangements (Details) £ in Millions, $ in Millions | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2020 GBP (£) | Dec. 31, 2020 USD ($) | Aug. 01, 2020 | Jun. 01, 2020 | Apr. 01, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 GBP (£) | Dec. 31, 2019 USD ($)
U.K. [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | £ 1,155 |  |  |  |  |  |  |
Borrowed | £ | 371 |  |  |  |  |  | £ 243 |
Letters of credit and commercial paper issued | £ | 4 |  |  |  |  |  | 4 |
Unused capacity | 780 | $ 1,000 |  |  |  |  |  |
U.K. [Member] | Uncommitted Credit Facilities [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | 100 |  |  |  |  |  |  |
Borrowed | £ | 60 |  |  |  |  |  | 0 |
Letters of credit and commercial paper issued | £ | 4 |  |  |  |  |  | 4 |
Unused capacity | £ | 36 |  |  |  |  |  |  |
WPD PLC [Member] | U.K. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | 210 |  |  |  |  |  |  |
Borrowed | 187 | $ 249 |  |  |  |  | 155 | $ 200
Letters of credit and commercial paper issued | £ | 0 |  |  |  |  |  | £ 0 |
Unused capacity | £ | £ 23 |  |  |  |  |  |  |
Maximum percentage of total net debt to RAV allowed under the credit facility | 85.00% | 85.00% |  |  |  |  |  |
Interest rate on outstanding borrowing | 0.95% | 0.95% |  |  |  |  | 2.52% | 2.52%
WPD South West [Member] | U.K. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | £ 220 |  |  |  |  |  |  |
Borrowed | 50 | $ 67 |  |  |  |  | £ 40 | $ 51
Letters of credit and commercial paper issued | £ | 0 |  |  |  |  |  | £ 0 |
Unused capacity | £ | £ 170 |  |  |  |  |  |  |
Maximum percentage of total net debt to RAV allowed under the credit facility | 85.00% | 85.00% |  |  |  |  |  |
Interest rate on outstanding borrowing | 54.00% | 54.00% |  |  |  |  | 1.09% | 1.09%
WPD East Midlands [Member] | U.K. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | £ 250 |  |  |  |  |  |  |
Borrowed | £ | 0 |  |  |  |  |  | £ 0 |
Letters of credit and commercial paper issued | £ | 0 |  |  |  |  |  | 0 |
Unused capacity | £ | £ 250 |  |  |  |  |  |  |
Maximum percentage of total net debt to RAV allowed under the credit facility | 85.00% | 85.00% |  |  |  |  |  |
WPD West Midlands [Member] | U.K. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | £ 250 |  |  |  |  |  |  |
Borrowed | 74 | $ 99 |  |  |  |  | 48 | $ 62
Letters of credit and commercial paper issued | £ | 0 |  |  |  |  |  | £ 0 |
Unused capacity | £ | £ 176 |  |  |  |  |  |  |
Maximum percentage of total net debt to RAV allowed under the credit facility | 85.00% | 85.00% |  |  |  |  |  |
Interest rate on outstanding borrowing | 0.54% | 0.54% |  |  |  |  | 1.11% | 1.11%
PPL Capital Funding [Member] | Term Loan Due 2022 [Member] | Term Loan Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  |  |  |  | $ 100 |  |  |
Borrowed |  |  |  |  | $ 100 |  |  |
Interest rate on outstanding borrowing |  |  |  |  | 1.72% |  |  |
PPL Capital Funding [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
PPL Capital Funding [Member] | Term Loan Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  |  |  |  | $ 100 | $ 200 |  |
Borrowed |  |  |  |  | $ 100 | $ 200 |  |
Interest rate on outstanding borrowing |  |  |  |  | 173.00% | 1.96% |  |
PPL Capital Funding [Member] | U.S. [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 1,950 |  |  |  |  |  |
Borrowed |  | 400 |  |  |  |  |  | $ 0
Letters of credit and commercial paper issued |  | 417 |  |  |  |  |  | 465
Unused capacity |  | 1,133 |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 1,450 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 402 |  |  |  |  |  | 450
Unused capacity |  | $ 1,048 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Syndicated Credit Facility 1 [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Bilateral Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | $ 50 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 0 |  |  |  |  |  | 0
Unused capacity |  | 50 |  |  |  |  |  |
Potential capacity increase |  | 30 |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Term Loan Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 200 |  |  |  |  |  |
Borrowed |  | 200 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 0 |  |  |  |  |  | 0
Unused capacity |  | $ 0 |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Term Loan Facility #2 |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | $ 100 |  |  |  |  |  |
Borrowed |  | 100 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 0 |  |  |  |  |  | 0
Unused capacity |  | 0 |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Term Loan Facility #3 |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 100 |  |  |  |  |  |
Borrowed |  | 100 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 0 |  |  |  |  |  | 0
Unused capacity |  | 0 |  |  |  |  |  |
PPL Capital Funding [Member] | U.S. [Member] | Bilateral Credit Facility #2 |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 50 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 15 |  |  |  |  |  | 15
Unused capacity |  | 35 |  |  |  |  |  |
PPL Electric [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 650 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 1 |  |  |  |  |  | 1
Unused capacity |  | $ 649 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
LKE [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
LGE [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | $ 500 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 262 |  |  |  |  |  | 238
Unused capacity |  | 238 |  |  |  |  |  |
LGE [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 500 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 262 |  |  |  |  |  | 238
Unused capacity |  | $ 238 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
KU [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 400 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 203 |  |  |  |  |  | 150
Unused capacity |  | 197 |  |  |  |  |  |
KU [Member] | First Mortgage Bonds Due 2050 [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 3.30% |  |  |  |
KU [Member] | Debt Instrument, Redemption, Period One [Member] | First Mortgage Bonds due 2020 [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  | 3.25% |  |  |  |  |
KU [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 400 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 203 |  |  |  |  |  | 150
Unused capacity |  | $ 197 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
KU [Member] | Letter Of Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
WPD [Member] | U.K. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Minimum interest coverage ratio allowed under the credit facility | 3.0 |  |  |  |  |  |  |
WPD South Wales [Member] | U.K. [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity | £ | £ 125 |  |  |  |  |  |  |
Borrowed | £ | 0 |  |  |  |  |  | £ 0 |
Letters of credit and commercial paper issued | £ | 0 |  |  |  |  |  | £ 0 |
Unused capacity | £ | £ 125 |  |  |  |  |  |  |
Maximum percentage of total net debt to RAV allowed under the credit facility | 85.00% | 85.00% |  |  |  |  |  |
PPL Electric Utilities Corp [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | $ 650 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 1 |  |  |  |  |  | 1
Unused capacity |  | $ 649 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
LG And E And KU Energy LLC [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
LG And E And KU Energy LLC [Member] | LGE [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | $ 500 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 262 |  |  |  |  |  | 238
Unused capacity |  | 238 |  |  |  |  |  |
LG And E And KU Energy LLC [Member] | LGE [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 500 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 262 |  |  |  |  |  | 238
Unused capacity |  | $ 238 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
LG And E And KU Energy LLC [Member] | KU [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 400 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 203 |  |  |  |  |  | 150
Unused capacity |  | 197 |  |  |  |  |  |
LG And E And KU Energy LLC [Member] | KU [Member] | First Mortgage Bonds Due 2050 [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 3.30% |  |  |  |
LG And E And KU Energy LLC [Member] | KU [Member] | Debt Instrument, Redemption, Period One [Member] | First Mortgage Bonds due 2020 [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  | 3.25% | 3.25% |  |  |  |
LG And E And KU Energy LLC [Member] | KU [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 400 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 203 |  |  |  |  |  | 150
Unused capacity |  | $ 197 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
LG And E And KU Energy LLC [Member] | KU [Member] | Letter Of Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Louisville Gas And Electric Co [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | $ 500 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 262 |  |  |  |  |  | 238
Unused capacity |  | 238 |  |  |  |  |  |
Louisville Gas And Electric Co [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 500 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 262 |  |  |  |  |  | 238
Unused capacity |  | $ 238 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
Kentucky Utilities Co [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 400 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 203 |  |  |  |  |  | 150
Unused capacity |  | 197 |  |  |  |  |  |
Kentucky Utilities Co [Member] | First Mortgage Bonds Due 2050 [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  |  | 3.30% |  |  |  |
Kentucky Utilities Co [Member] | Debt Instrument, Redemption, Period One [Member] | First Mortgage Bonds due 2020 [Member] | First Mortgage Bonds [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Stated interest rate |  |  | 3.25% | 3.25% |  |  |  |
Kentucky Utilities Co [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Capacity |  | 400 |  |  |  |  |  |
Borrowed |  | 0 |  |  |  |  |  | 0
Letters of credit and commercial paper issued |  | 203 |  |  |  |  |  | $ 150
Unused capacity |  | $ 197 |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |
Kentucky Utilities Co [Member] | Letter Of Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Maximum percentage of debt to total capitalization allowed under the credit facility | 70.00% | 70.00% |  |  |  |  |  |
PPL Electric [Member] | Syndicated Credit Facility [Member] |  |  |  |  |  |  |  |
Financing Activities [Line Items] |  |  |  |  |  |  |  |
Potential capacity increase |  | $ 250 |  |  |  |  |  |

X
- Definition Aggregate amount of letters of credit issued under a credit facility as of the balance-sheet date, if applicable and inclusion of amounts issued under separate commercial paper program that reduces this facilities capacity. + References No definition available. + Details
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- Definition The maximum allowable percentage of debt to total capitalization as defined in the credit facility agreement's covenants. + References No definition available. + Details
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- Definition The maximum percentage of total net debt to regulatory asset value (RAV) as defined in the credit facility agreement's covenants. + References No definition available. + Details
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- Definition The amount by which the company may request that the facility's capacity be increased under certain conditions. + References No definition available. + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Description of the conditions for borrowing under the credit facility including the nature of any restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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