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Commitments and Contingencies (Details Textual) (USD $)
In Millions, unless otherwise specified
6 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2011
Asbestos Issue [Member]
Dec. 31, 2010
Asbestos Issue [Member]
Jun. 30, 2011
Night Vision Matter [Member]
Schedule Of Activities Related To Claims Filed [Line Items]        
Number of claims in Mississippi placed on inactive dockets 39,680      
Tenure to be used to file undiscounted Asbestos liability including legal fees and claims Next 10 years      
Estimated asbestos exposure, net of expected recoveries from insurers and other responsible parties   $ 664 $ 641  
Total asbestos liability, current   116 117  
Total asbestos asset, current   105 105  
Number Of Itar Violations Company Pled Guilty To       2
Night Vision ITAR Violation Settlement; Fines, Forfeitures and Penalties       50
Night Vision ITAR Violation Settlement; Deferred Prosecution Monetary Penalty       50
Period for Deferred Prosecution Monetary Penalty       5
Night Vision ITAR Violation Settlement; Deferred Prosecution Monetary Penalty       $ 50
Period for Deferred Prosecution Monetary Penalty       5