CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Vote per share of PPL's common stock	1ppl_VotesPerShareOfCommonStock	1ppl_VotesPerShareOfCommonStock	1ppl_VotesPerShareOfCommonStock

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