XML 391 R53.htm IDEA: XBRL DOCUMENT
v3.20.1

Financing Activities - Short-term Debt (Details) - Commercial Paper [Member] - USD ($) $ in Millions | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Short-term Debt [Line Items] |  |
Capacity | $ 2,850 |
Commercial Paper Issuances | 283 | $ 838
Unused Capacity | $ 2,567 |
PPL Capital Funding [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.91% | 2.13%
Capacity | $ 1,500 |
Commercial Paper Issuances | 180 | $ 450
Unused Capacity | 1,320 |
PPL Electric [Member] |  |
Short-term Debt [Line Items] |  |
Capacity | 650 |
Commercial Paper Issuances | 0 | $ 0
Unused Capacity | $ 650 |
LGE [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.71% | 2.07%
Capacity | $ 350 |
Commercial Paper Issuances | 59 | $ 238
Unused Capacity | $ 291 |
KU [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.65% | 2.02%
Capacity | $ 350 |
Commercial Paper Issuances | 44 | $ 150
Unused Capacity | 306 |
PPL Electric Utilities Corp [Member] |  |
Short-term Debt [Line Items] |  |
Capacity | 650 |
Commercial Paper Issuances | 0 | $ 0
Unused Capacity | $ 650 |
LG And E And KU Energy LLC [Member] | LGE [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.71% | 2.07%
Capacity | $ 350 |
Commercial Paper Issuances | 59 | $ 238
Unused Capacity | $ 291 |
LG And E And KU Energy LLC [Member] | KU [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.65% | 2.02%
Capacity | $ 350 |
Commercial Paper Issuances | 44 | $ 150
Unused Capacity | $ 306 |
Louisville Gas And Electric Co [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.71% | 2.07%
Capacity | $ 350 |
Commercial Paper Issuances | 59 | $ 238
Unused Capacity | $ 291 |
Kentucky Utilities Co [Member] |  |
Short-term Debt [Line Items] |  |
Weighted - Average Interest Rate | 1.65% | 2.02%
Capacity | $ 350 |
Commercial Paper Issuances | 44 | $ 150
Unused Capacity | $ 306 |

X
- Definition Amount of unused borrowing capacity under the commercial paper financing arrangement that is available to the entity as of the balance sheet date. + References No definition available. + Details
Name: | ppl_CommercialPaperUnusedBorrowingCapacityAmount
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum borrowing capacity under the short-term credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References No definition available. + Details
Name: | ppl_ShortTermDebtMaximumBorrowingCapacity
Namespace Prefix: | ppl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days. + References Reference 1: 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(13)(2)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910 Reference 3: 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)(a)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommercialPaper
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average interest rate of short-term debt outstanding calculated at point in time. + 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_ShortTermDebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ShortTermDebtTypeAxis=us-gaap_CommercialPaperMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_ByCompanyAxis=ppl_PplCapitalFundingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_ByCompanyAxis=ppl_PplElectricUtilitiesCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_ByCompanyAxis=ppl_LouisvilleGasAndElectricCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ppl_ByCompanyAxis=ppl_KentuckyUtilitiesCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_PplElectricUtilitiesCorpMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_LGAndEAndKUEnergyLLCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_LouisvilleGasAndElectricCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=ppl_KentuckyUtilitiesCoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |