XML 78 R31.htm IDEA: XBRL DOCUMENT v3.21.1
Revenue from Contracts with Customers (Tables)
 3 Months Ended
Mar. 31, 2021
Revenue from Contracts with Customers [Line Items]  
Reconciliation of Revenue from Contracts with Customers [Table Text Block]
The following tables reconcile "Operating Revenues" included in each Registrant's Statement of Income with revenues generated from contracts with customers for the periods ended March 31.
2021 Three Months
PPLPPL ElectricLKELG&EKU
Operating Revenues (a)$1,498 $605 $885 $428 $469 
   Revenues derived from:
Alternative revenue programs (b)24 22 2 — 2 
Other (c)(6)— (6)(3)(3)
Revenues from Contracts with Customers$1,516 $627 $881 $425 $468 
2020 Three Months
PPLPPL ElectricLKELG&EKU
Operating Revenues (a)$1,440 $608 $825 $407 $432 
   Revenues derived from:
Alternative revenue programs (b)(3)— (3)(3)— 
Other (c)(8)(2)(6)(3)(3)
Revenues from Contracts with Customers$1,429 $606 $816 $401 $429 

(a)PPL Electric and LKE represent revenues from external customers reported by the Pennsylvania Regulated and Kentucky Regulated segments. See Note 3 for additional information.
(b)Alternative revenue programs include the transmission formula rate for PPL Electric, the ECR and DSM programs for LG&E and KU, the GLT program for LG&E, and the generation formula rate for KU. For PPL Electric, the three months ended March 31, 2021 includes a $27 million reserve recorded as a result of a challenge to the transmission formula rate return on equity. See Note 7 for further information. This line item shows the over/under collection of these rate mechanisms with over-collections of revenue shown as positive amounts in the table above and under-collections shown as negative amounts.
(c)Represents additional revenues outside the scope of revenues from contracts with customers, such as lease and other miscellaneous revenues.
Disaggregation of Revenue [Table Text Block]
The following tables show revenues from contracts with customers disaggregated by customer class for the periods ended March 31.
2021 Three Months
PPLPPL ElectricLKELG&EKU
Residential$774 $361 $413 $205 $208 
Commercial313 82 231 121 110 
Industrial 152 12 140 46 94 
Other (a)91 12 71 34 37 
Wholesale - municipality6 — 6 — 6 
Wholesale - other (b)20 — 20 19 13 
Transmission160 160 — — — 
Revenues from Contracts with Customers$1,516 $627 $881 $425 $468 
2020 Three Months
PPLPPL ElectricLKELG&EKU
Residential$714 $344 $370 $187 $183 
Commercial312 81 231 124 107 
Industrial 144 8 136 45 91 
Other (a)87 14 66 28 38 
Wholesale - municipality5 — 5 — 5 
Wholesale - other (b)8 — 8 17 5 
Transmission159 159 — — — 
Revenues from Contracts with Customers$1,429 $606 $816 $401 $429 

(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 LKE.
Credit Loss Recognized from Contracts with Customers [Table Text Block]
The following table shows the accounts receivable and unbilled revenues balances that were impaired for the periods ended March 31.
Three Months
20212020
PPL$2 $6 
PPL Electric1 4 
LKE1 2 
LG&E— 1 
KU1 1 
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 ElectricLKELG&EKU
Contract liabilities at December 31, 2020
$40 $23 $11 $5 $6 
Contract liabilities at March 31, 2021
33 16 10 5 5 
Revenue recognized during the three months ended March 31, 2021 that was included in the contract liability balance at December 31, 2020
21 9 11 5 6 
Contract liabilities at December 31, 2019
$37 $21 $9 $5 $4 
Contract liabilities at March 31, 2020
34 15 14 10 4 
Revenue recognized during the three months ended March 31, 2020 that was included in the contract liability balance at December 31, 2019
19 8 9 5 4