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Earnings Per Share (Tables)
6 Months Ended
Jun. 30, 2011
Notes To Financial Statements [Abstract]  
Basic and Diluted EPS Computations

Reconciliations of the amounts of income and shares of PPL common stock (in thousands) for the periods ended June 30 used in the EPS calculation are:

     Three Months Six Months
     2011 2010 2011 2010
Income (Numerator)            
Income from continuing operations after income taxes attributable to PPL $ 197 $ 78 $ 595 $ 320
Less amounts allocated to participating securities   1      3   1
Income from continuing operations after income taxes available to PPL            
 common shareowners $ 196 $ 78 $ 592 $ 319
                
Income (loss) from discontinued operations (net of income taxes) available            
 to PPL $ (1) $ 7 $ 2 $ 15
                
Net income attributable to PPL $ 196 $ 85 $ 597 $ 335
Less amounts allocated to participating securities   1      3   1
Net income available to PPL common shareowners $ 195 $ 85 $ 594 $ 334
                
Shares of Common Stock (Denominator)            
Weighted-average shares - Basic EPS   561,652   381,896   522,897   379,810
Add incremental non-participating securities:            
  Stock options and performance units   367   179   287   224
Weighted-average shares - Diluted EPS   562,019   382,075   523,184   380,034
                
Basic EPS             
Available to PPL common shareowners:            
  Income from continuing operations after income taxes  $ 0.35 $ 0.20 $ 1.13 $ 0.84
  Income (loss) from discontinued operations (net of income taxes)      0.02   0.01   0.04
Net Income $ 0.35 $ 0.22 $ 1.14 $ 0.88
                
Diluted EPS             
Available to PPL common shareowners:            
  Income from continuing operations after income taxes  $ 0.35 $ 0.20 $ 1.13 $ 0.84
  Income (loss) from discontinued operations (net of income taxes)      0.02   0.01   0.04
Net Income $ 0.35 $ 0.22 $ 1.14 $ 0.88
Antidilutive Securities Excluded From Diluted EPS

For the periods ended June 30 the following stock options to purchase PPL common stock and performance units were excluded from the computations of diluted EPS because the effect would have been antidilutive.

  Three Months Six Months
(Shares in thousands) 2011 2010 2011 2010
             
Stock options   5,045   5,184   5,829   4,669
Performance units   1   105   4   91