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Business Segments
9 Months Ended
Sep. 30, 2011
Business Segments [Abstract] 
Business Segments
6. Business Segments
Operating results by segment are as follows (in millions):
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2011     2010     2011     2010  
Revenue:
                               
Rig Technology
  $ 1,970     $ 1,650     $ 5,472     $ 5,208  
Petroleum Services & Supplies
    1,460       1,089       4,084       3,045  
Distribution Services
    480       424       1,313       1,123  
Elimination
    (170 )     (152 )     (470 )     (392 )
 
                       
Total Revenue
  $ 3,740     $ 3,011     $ 10,399     $ 8,984  
 
                       
 
                               
Operating Profit:
                               
Rig Technology
  $ 523     $ 478     $ 1,456     $ 1,564  
Petroleum Services & Supplies
    298       164       777       415  
Distribution Services
    37       24       90       48  
Unallocated expenses and eliminations
    (86 )     (70 )     (234 )     (204 )
 
                       
Total Operating Profit
  $ 772     $ 596     $ 2,089     $ 1,823  
 
                       
 
                               
Operating Profit %:
                               
Rig Technology
    26.5 %     29.0 %     26.6 %     30.0 %
Petroleum Services & Supplies
    20.4 %     15.1 %     19.0 %     13.6 %
Distribution Services
    7.7 %     5.7 %     6.9 %     4.3 %
Total Operating Profit %
    20.6 %     19.8 %     20.1 %     20.3 %
The Company had revenues of 13% and 12% of total revenue from one of its customers for the three and nine months ended September 30, 2011, respectively, and revenues of 14% and 17% of total revenue from one of its customers for the three and nine months ended September 30, 2010, respectively. This customer, Samsung Heavy Industries, is a shipyard acting as a general contractor for its customers, who are drillship owners and drilling contractors. This shipyard’s customers have specified that the Company’s drilling equipment be installed on their drillships and have required the shipyard to issue contracts to the Company.