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CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012 Integer	Mar. 31, 2011 Integer
Vote per share of PPL's common stock	1	1
Stock-based compensation expense related to new and existing unvested equity awards	$ 29	$ 17
Reclassifications from Stock-based compensation to Common stock issued	$ (12)	$ (22)

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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