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Revenue from Contracts with Customers (Tables)
 12 Months Ended
Dec. 31, 2022
Revenue from contracts with customers [Line Items]  
Reconciliation of revenue from contracts with customers [Table Text Block]
The following table reconciles "Operating Revenues" included in each Registrant's Statement of Income with revenues generated from contracts with customers for the years ended December 31:
2022
PPLPPL ElectricLG&EKU
Operating Revenues (a)$7,902 $3,030 $1,798 $2,074 
Revenues derived from:
Alternative revenue programs (b)(92)(56)9 5 
Other (c)(24)(14)(6)(4)
Revenues from Contracts with Customers$7,786 $2,960 $1,801 $2,075 
2021
PPLPPL ElectricLG&EKU
Operating Revenues (a)$5,783 $2,402 $1,569 $1,826 
Revenues derived from:
Alternative revenue programs (b)77 83 (3)(3)
Other (c)(22)(3)(8)(9)
Revenues from Contracts with Customers$5,838 $2,482 $1,558 $1,814 
2020
PPLPPL ElectricLG&EKU
Operating Revenues (a)$5,474 $2,331 $1,456 $1,690 
Revenues derived from:
Alternative revenue programs (b)(24)(12)(8)(4)
Other (c)(21)(3)(7)(10)
Revenues from Contracts with Customers$5,429 $2,316 $1,441 $1,676 

(a)PPL includes $1,038 million for the twelve months ended December 31, 2022 of revenues from external customers reported by the Rhode Island Regulated segment. PPL Electric represents revenues from external customers reported by the Pennsylvania Regulated segment and LG&E and KU, net of intercompany power sales and transmission revenues, represent revenues from external customers reported by the Kentucky Regulated segment. See Note 2 for additional information.
(b)This line item shows the over/under collection of rate mechanisms deemed alternative revenue programs with over-collections of revenue shown as positive amounts in the table above and under collections as negative amounts. For PPL Electric, revenue in 2022 includes $74 million related to the
amortization of the regulatory liability primarily recorded in 2021 for a reduction in the transmission formula rate return on equity that is reflected in rates in 2022. Revenue in 2021 was reduced by $78 million for a reduction in the transmission formula rate return on equity. See Note 7 for additional information.
(c)Represents additional revenues outside the scope of revenues from contracts with customers such as leases and other miscellaneous revenues.
Disaggregation of Revenue [Table Text Block]
The following table shows revenues from contracts with customers disaggregated by customer class for the years ended December 31:
ResidentialCommercialIndustrialOther (a)Wholesale - municipalityWholesale - other (b)TransmissionRevenues from Contracts with Customers
PPL
2022
PA Regulated$1,647 $491 $85 $54 $— $— $683 $2,960 
RI Regulated299 101 9 478 — — 101 988 
KY Regulated1,637 1,068 662 323 28 97 — 3,815 
Corp and Other— — — 23 — — — 23 
Total PPL$3,583 $1,660 $756 $878 $28 $97 $784 $7,786 
2021
PA Regulated$1,299 $350 $53 $50 $— $— $730 $2,482 
RI Regulated— — — — — — — — 
KY Regulated1,416 928 586 305 24 66 — 3,325 
Corp and Other— — — 31 — — — 31 
Total PPL$2,715 $1,278 $639 $386 $24 $66 $730 $5,838 
2020
PA Regulated$1,238 $314 $44 $50 $— $— $670 $2,316 
RI Regulated— — — — — — — — 
KY Regulated1,347 871 538 261 20 40 — 3,077 
Corp and Other— — — 36 — — — 36 
Total PPL$2,585 $1,185 $582 $347 $20 $40 $670 $5,429 
PPL Electric
2022$1,647 $491 $85 $54 $— $— $683 $2,960 
2021$1,299 $350 $53 $50 $— $— $730 $2,482 
2020$1,238 $314 $44 $50 $— $— $670 $2,316 
LG&E
2022$835 $551 $199 $141 $— $75 $— $1,801 
2021$711 $473 $180 $145 $— $49 $— $1,558 
2020$676 $444 $173 $114 $— $34 $— $1,441 
KU
2022$802 $517 $463 $182 $28 $83 $— $2,075 
2021$705 $455 $406 $160 $24 $64 $— $1,814 
2020$671 $427 $365 $147 $20 $46 $— $1,676 
(a)Primarily includes revenues from pole attachments, street lighting, other public authorities and other non-core businesses.
(b)Includes wholesale power and transmission revenues. LG&E and KU amounts include intercompany power sales and transmission revenues, which are eliminated upon consolidation at PPL.
Credit loss recognized from contract with customer [Table Text Block]
The following table shows the accounts receivable and unbilled revenues balances that were impaired for the year ended December 31:
202220212020
PPL(a)$70 $22 $25 
PPL Electric21 10 17 
LG&E6 4 4 
KU6 8 4 
Contract with Customer, Asset and Liability [Table Text Block]
The following table shows the balances and certain activity of contract liabilities resulting from contracts with customers:
PPLPPL ElectricLG&EKU
Contract liabilities as of December 31, 2022$34 $23 $5 $6 
Contract liabilities as of December 31, 202142 25 6 6 
Revenue recognized during the year ended December 31, 2022 that was included in the contract liability balance at December 31, 202125 12 6 6 
Contract liabilities as of December 31, 2021$42 $25 $6 $6 
Contract liabilities as of December 31, 202040 23 5 6 
Revenue recognized during the year ended December 31, 2021 that was included in the contract liability balance at December 31, 202024 11 5 6 
Contract liabilities as of December 31, 2020$40 $23 $5 $6 
Contract liabilities as of December 31, 201937 21 5 4 
Revenue recognized during the year ended December 31, 2020 that was included in the contract liability balance at December 31, 201922 9 5 4