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Revenue from Contracts with Customers | 3 Months Ended
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Mar. 31, 2020
Revenue from Contract with Customer [Abstract] |
Revenue from Contracts with Customers | 4. Revenue from Contracts with Customers (All Registrants) See Note 3 in PPL's 2019 Form 10-K for a discussion of the principal activities from which the Registrants and PPL’s segments generate their revenues. The following tables reconcile "Operating Revenues" included in each Registrant's Statement of Income with revenues generated from contracts with customers for the period ended March 31.
| 2020 Three Months
| PPL |  | PPL Electric |  | LKE |  | LG&E |  | KU
Operating Revenues (a) | $ | 2,054 |  |  | $ | 608 |  |  | $ | 825 |  |  | $ | 407 |  |  | $ | 432 |
Revenues derived from: |  |  |  |  |  |  |  |  |
Alternative revenue programs (b) | (3 | ) |  | — |  |  | (3 | ) |  | (3 | ) |  | — |
Other (c) | (10 | ) |  | (2 | ) |  | (6 | ) |  | (3 | ) |  | (3 | )
Revenues from Contracts with Customers | $ | 2,041 |  |  | $ | 606 |  |  | $ | 816 |  |  | $ | 401 |  |  | $ | 429 |
| 2019 Three Months
| PPL |  | PPL Electric |  | LKE |  | LG&E |  | KU
Operating Revenues (a) | $ | 2,079 |  |  | $ | 645 |  |  | $ | 845 |  |  | $ | 410 |  |  | $ | 450 |
Revenues derived from: |  |  |  |  |  |  |  |  |  |  |  |  |
Alternative revenue programs (b) | (6 | ) |  | (4 | ) |  | (2 | ) |  | (2 | ) |  | — |
Other (c) | (10 | ) |  | (3 | ) |  | (4 | ) |  | (1 | ) |  | (3 | )
Revenues from Contracts with Customers | $ | 2,063 |  |  | $ | 638 |  |  | $ | 839 |  |  | $ | 407 |  |  | $ | 447 |
(a) | PPL includes $614 million and $583 million of revenues from external customers reported by the U.K. Regulated segment for the three months ended March 31, 2020 and 2019. 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. 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 leases and other miscellaneous revenues.
The following tables show revenues from contracts with customers disaggregated by customer class for the periods ended March 31.
| 2020 Three Months
| PPL (d) |  | PPL Electric (d) |  | LKE |  | LG&E |  | KU
Licensed energy suppliers (a) | $ | 583 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Residential | 714 |  |  | 344 |  |  | 370 |  |  | 187 |  |  | 183 |
Commercial | 312 |  |  | 81 |  |  | 231 |  |  | 124 |  |  | 107 |
Industrial | 144 |  |  | 8 |  |  | 136 |  |  | 45 |  |  | 91 |
Other (b) | 116 |  |  | 14 |  |  | 66 |  |  | 28 |  |  | 38 |
Wholesale - municipality | 5 |  |  | — |  |  | 5 |  |  | — |  |  | 5 |
Wholesale - other (c) | 8 |  |  | — |  |  | 8 |  |  | 17 |  |  | 5 |
Transmission | 159 |  |  | 159 |  |  | — |  |  | — |  |  | — |
Revenues from Contracts with Customers | $ | 2,041 |  |  | $ | 606 |  |  | $ | 816 |  |  | $ | 401 |  |  | $ | 429 |
| 2019 Three Months
| PPL |  | PPL Electric |  | LKE |  | LG&E |  | KU
Licensed energy suppliers (a) | $ | 556 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Residential | 778 |  |  | 407 |  |  | 371 |  |  | 189 |  |  | 182 |
Commercial | 319 |  |  | 95 |  |  | 224 |  |  | 121 |  |  | 103 |
Industrial | 150 |  |  | 17 |  |  | 133 |  |  | 44 |  |  | 89 |
Other (b) | 114 |  |  | 14 |  |  | 70 |  |  | 33 |  |  | 37 |
Wholesale - municipality | 28 |  |  | — |  |  | 28 |  |  | — |  |  | 28 |
Wholesale - other (c) | 13 |  |  | — |  |  | 13 |  |  | 20 |  |  | 8 |
Transmission | 105 |  |  | 105 |  |  | — |  |  | — |  |  | — |
Revenues from Contracts with Customers | $ | 2,063 |  |  | $ | 638 |  |  | $ | 839 |  |  | $ | 407 |  |  | $ | 447 |
(a) | Represents customers of WPD.
(b) | Primarily includes revenues from pole attachments, street lighting, other public authorities and other non-core businesses.
(c) | 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.
(d) | In the fourth quarter of 2019, management deemed it appropriate to present the revenue offset associated with network integration transmission service (NITS) as distribution revenue rather than transmission revenue.
As discussed in Note 2 in PPL's 2019 Form 10-K, PPL segments its business by geographic location. Revenues from external customers for each segment/geographic location are reconciled to revenues from contracts with customers in the footnotes to the tables above. PPL Electric's revenues from contracts with customers are further disaggregated by distribution and transmission, which were $447 million and $159 million for the three months ended March 31, 2020 and $533 million and $105 million for the three months ended March 31, 2019. Contract receivables from customers are primarily included in "Accounts receivable - Customer" and "Unbilled revenues" on the Balance Sheets. The following table shows the accounts receivable and unbilled revenues balances that were impaired for the period ended March 31.
| Three Months
| 2020 |  | 2019
PPL | $ | 8 |  |  | $ | 9 |
PPL Electric | 4 |  |  | 6 |
LKE | 2 |  |  | 2 |
LG&E | 1 |  |  | 1 |
KU | 1 |  |  | 1 |
The following table shows the balances and certain activity of contract liabilities resulting from contracts with customers.
| PPL |  | PPL Electric |  | LKE |  | LG&E |  | KU
Contract liabilities at December 31, 2019 | $ | 44 |  |  | $ | 21 |  |  | $ | 9 |  |  | $ | 5 |  |  | $ | 4 |
Contract liabilities at March 31, 2020 | 42 |  |  | 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 | 23 |  |  | 8 |  |  | 9 |  |  | 5 |  |  | 4 |
Contract liabilities at December 31, 2018 | $ | 42 |  |  | $ | 23 |  |  | $ | 9 |  |  | $ | 5 |  |  | $ | 4 |
Contract liabilities at March 31, 2019 | 37 |  |  | 14 |  |  | 7 |  |  | 4 |  |  | 3 |
Revenue recognized during the three months ended March 31, 2019 that was included in the contract liability balance at December 31, 2018 | 25 |  |  | 11 |  |  | 9 |  |  | 5 |  |  | 4 |
Contract liabilities result from recording contractual billings in advance for customer attachments to the Registrants' infrastructure and payments received in excess of revenues earned to date. Advanced billings for customer attachments are recognized as revenue ratably over the billing period. Payments received in excess of revenues earned to date are recognized as revenue as services are delivered in subsequent periods. At March 31, 2020, PPL had $32 million of performance obligations attributable to Corporate and Other that have not been satisfied. Of this amount, PPL expects to recognize approximately $28 million within the next 12 months.

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- Definition The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -URI http://asc.fasb.org/topic&trid=49130388 + Details
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