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Retained Earnings
 6 Months Ended
Jun. 30, 2011
Retained Earnings Note Disclosure [Abstract]  
RETAINED EARNINGS
RETAINED EARNINGS


The following table summarizes earnings retained for use in the business for the periods ended June 30 (in millions):
 
Second Quarter
 
First Half
 
2011
 
2010
 
2011
 
2010
Retained earnings, beginning balance
$
3,778


 
$
4,807


 
$
4,227


 
$
4,779


Net income
383


 
556


 
834


 
1,084


Distributions
(1,000
)
 
—


 
(1,900
)
 
(500
)
Retained earnings, ending balance
$
3,161


 
$
5,363


 
$
3,161


 
$
5,363