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Other, Net
 12 Months Ended
Dec. 31, 2011
Other, Net [Abstract]  
Other Income and Other Expense Disclosure [Text Block]
(20)    Other, Net

Other, net, as shown on the Consolidated Statements of Operations, for the years ending December 31 consists of the following (in millions):
 
2011
 
2010
 
2009
 
 
 
 
 
 
Allowance for equity funds used during construction
$
72

 
$
89

 
$
68

Loss on redemption of MEHC subordinated debt
(40
)
 
—

 
—

Corporate-owned life insurance income
9

 
17

 
24

Gain on Constellation Energy Group, Inc. investment
—

 
—

 
37

Other
10

 
4

 
17

Total other, net
$
51

 
$
110

 
$
146