v2.3.0.15
Goodwill
9 Months Ended
Sep. 30, 2011
Goodwill [Abstract] 
Goodwill
Note 7 - Goodwill
 
    The changes in the carrying amount of goodwill are detailed below by reportable segment.  On May 31, 2011, we completed the acquisition of Pride resulting in the recognition of a preliminary amount of $2.96 billion in goodwill.  See "Note 2 - Acquisition of Pride International, Inc." for additional information on the Merger.
 
 
Deepwater  
 
    Midwater
       Jackup
 
 
 Total     
                
Balance as of December 31, 2010
$  143.6  
 
$      --   
 
$192.6
   
 
$   336.2 
 
Acquisition of Pride, including measurement
   period adjustments
2,486.1    
473.8   
 
--
   
 
2,959.9 
 
Balance as of September 30, 2011
$2,629.7  
 
$473.8   
 
$192.6
   
 
$3,296.1