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Description Of Company And Significant Accounting Policies Description Of Company And Significant Accounting Policies (Components Of Other Current Liabilities) (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accounting Policies [Abstract]        
Provision for Loss on Contracts $ 60 $ 159 $ 109 $ 56
Retainage payable 49 88    
Income taxes payable 56 61    
Accrual for Taxes Other than Income Taxes 7 8    
ValueAddedTaxPayableCurrent 12 31    
Self Insurance Reserve, Noncurrent 12 19    
Dividends Payable 12 12 $ 12  
Other miscellaneous liabilities 55 64    
Total other current liabilities $ 263 $ 442