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## Selected Financial Data by Business Segment (continued) 

(a) Operating profit included equity in net earnings (losses) of equity investees as follows: 

<img src='content_image/227553.jpg'>

(b) Severance and other charges include the severance charges recorded in 2011 associated with Aeronautics, IS&GS, and Space Systems business segments, and Corporate Headquarters, and for 2010, included the charges related to the VESP and facilities consolidation within Electronic Systems (Note 2). 

(c) Other unallocated corporate expense, net included the following: 

<img src='content_image/227554.jpg'>

## Net Sales by Customer Category 

<img src='content_image/227556.jpg'>

(a) Sales made to foreign governments through the U.S. Government (i.e., foreign military sales) are included in the “International” category. 

Our Aeronautics business segment includes our largest program, the F-35 Lightning II Joint Strike Fighter, an international multi-role, stealth fighter. F-35 program related net sales represented approximately 13%, 12%, and 10% of our total net sales during 2011, 2010, and 2009. 

