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Adoption of Accounting Guidance (Tables) | 6 Months Ended
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Jun. 30, 2021
Summary Of Significant Accounting Policies [Line Items] |
Financing Receivable, Allowance for Credit Loss [Table Text Block] | The following table shows changes in the allowance for credit losses for the six months ended June 30, 2021:
| Balance at Beginning of Period |  | Charged to Income |  | Deductions (a) |  | Balance at End of Period
PPL |  |  |  |  |  |  |
Accounts Receivable - Customer and Unbilled Revenue (c) | $ | 44 |  |  | $ | 2 |  |  | $ | 4 |  |  | $ | 42 |
Other (b) | 28 |  |  | 1 |  |  | — |  |  | 29 |
PPL Electric |  |  |  |  |  |  |
Accounts Receivable - Customer and Unbilled Revenue (c) | $ | 39 |  |  | $ | 1 |  |  | $ | 2 |  |  | $ | 38 |
Other | 1 |  |  | — |  |  | — |  |  | 1 |
LG&E |  |  |  |  |  |  |
Accounts Receivable - Customer and Unbilled Revenue | $ | 3 |  |  | $ | — |  |  | $ | 1 |  |  | $ | 2 |
KU |  |  |  |  |  |  |
Accounts Receivable - Customer and Unbilled Revenue | $ | 2 |  |  | $ | 1 |  |  | $ | 1 |  |  | $ | 2 |
(a)Primarily related to uncollectible accounts receivable written off. (b)Primarily related to receivables at WKE, which are fully reserved. (c)Includes $5 million related to Noncurrent Accounts Receivable – Customer included in “Other noncurrent assets” on the PPL and PPL Electric Balance Sheets at June 30, 2021.
Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow Statement | The following provides a reconciliation of Cash, Cash Equivalents and Restricted Cash reported within the Balance Sheets that sum to the total of the same amounts shown on the Statements of Cash Flows:
| PPL
| June 30, 2021 |  |  |  | December 31, 2020
Cash and cash equivalents | $ | 7,629 |  |  |  |  | $ | 442 |
Restricted cash - current (a) | 1 |  |  |  |  | 1 |
Total Cash, Cash Equivalents and Restricted Cash | $ | 7,630 |  |  |  |  | $ | 443 |
(a)Bank deposits and other cash equivalents that are restricted by agreement or that have been clearly designated for a specific purpose are classified as restricted cash. On the Balance Sheets, the current portion of restricted cash is included in "Other current assets."

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- Definition Tabular disclosure of allowance for credit loss on financing receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 + Details
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