CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical)	9 Months Ended
Sep. 30, 2017 Integer
Vote per share of PPL's common stock	1

The number of votes each holder of one share of the company's common stock is entitled to on any questions presented to any shareowners' meeting.

No definition available.

Name:	ppl_VotesPerShareOfCommonStock
Namespace Prefix:	ppl_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration