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Earnings Per Share (Tables)
9 Months Ended
Sep. 30, 2012
Earnings Per Share [Abstract]  
Basic and Diluted EPS Computations

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

     Three Months Nine Months
     2012 2011 2012 2011
Income (Numerator)            
Income from continuing operations after income taxes attributable to PPL            
 shareowners $ 355 $ 444 $ 1,173 $ 1,039
Less amounts allocated to participating securities   2   2   7   4
Income from continuing operations after income taxes available to PPL            
 common shareowners $ 353 $ 442 $ 1,166 $ 1,035
                
Income (loss) from discontinued operations (net of income taxes) available            
 to PPL common shareowners $  $  $ (6) $ 2
                
Net income attributable to PPL shareowners $ 355 $ 444 $ 1,167 $ 1,041
Less amounts allocated to participating securities   2   2   7   4
Net income available to PPL common shareowners $ 353 $ 442 $ 1,160 $ 1,037
                
Shares of Common Stock (Denominator)            
Weighted-average shares - Basic EPS   580,585   577,595   579,847   541,135
Add incremental non-participating securities:            
  Stock options and performance units   635   459   522   345
  2010 Purchase Contracts   439      146   
  Forward sale agreements   977      415   
Weighted-average shares - Diluted EPS   582,636   578,054   580,930   541,480
                
Basic EPS             
Available to PPL common shareowners:            
  Income from continuing operations after income taxes  $ 0.61 $ 0.76 $ 2.01 $ 1.91
  Income (loss) from discontinued operations (net of income taxes)         (0.01)   0.01
  Net Income $ 0.61 $ 0.76 $ 2.00 $ 1.92
                
Diluted EPS             
Available to PPL common shareowners:            
  Income from continuing operations after income taxes  $ 0.61 $ 0.76 $ 2.01 $ 1.91
  Income (loss) from discontinued operations (net of income taxes)         (0.01)   
  Net Income $ 0.61 $ 0.76 $ 2.00 $ 1.91
Common Stock Issuances

For the periods ended September 30, 2012, PPL issued common stock related to stock-based compensation plans, ESOP and DRIP as follows:

(Shares in thousands) Three Months Nine Months
         
Stock-based compensation plans (a)   159   512
ESOP      280
DRIP   598   1,773

(a)       Includes stock options exercised, vesting of restricted stock and restricted stock units and conversion of stock units granted to directors.

Antidilutive Securities Excluded From Diluted EPS

For the periods ended September 30, the following 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 Nine Months
(Shares in thousands) 2012 2011 2012 2011
             
Stock options   4,935   4,473   5,622   5,377
Performance units      3   76   3