Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2017

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Receivables, Policy

Accounts Receivable(PPL and PPL Electric)

In accordance with a PUC-approved purchase of accounts receivable program, PPL Electric purchases certain accounts receivable from alternative electricity suppliers at a discount, which reflects a provision for uncollectible accounts. The alternative electricity suppliers have no continuing involvement or interest in the purchased accounts receivable.

Fair Value Transfer, Policy

Transfers between levels are recognized at end-of-reporting-period values.

Derivatives, Offsetting Fair Value Amounts, Policy

Net derivative positions on the balance sheets are not offset against the right to reclaim cash collateral (a receivable) or the obligation to return cash collateral (a payable) under master netting arrangements.

PPL Electric Utilities Corp [Member]

New Accounting Pronouncements or Change in Accounting Principle [Line Items]

Receivables, Policy

Accounts Receivable(PPL and PPL Electric)

In accordance with a PUC-approved purchase of accounts receivable program, PPL Electric purchases certain accounts receivable from alternative electricity suppliers at a discount, which reflects a provision for uncollectible accounts. The alternative electricity suppliers have no continuing involvement or interest in the purchased accounts receivable.