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Significant Group Concentrations Of Risk (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Concentration Risk [Line Items]    
Gross accounts receivable and gross customer financing $ 12,393  
Gross customer financing 3,586 $ 3,582
External Credit Rating, Non Investment Grade [Member]    
Concentration Risk [Line Items]    
Gross customer financing $ 2,487  
Workforce Subject To Collective Bargaining Arrangements [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 38.00%  
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 13.00%  
Commercial Aircraft Customers [Member]    
Concentration Risk [Line Items]    
Gross accounts receivable and gross customer financing $ 5,633  
Accounts Receivable, Gross, Current 2,096  
Gross customer financing 3,537  
U S Government Contracts [Member]    
Concentration Risk [Line Items]    
Accounts Receivable, Gross, Current $ 4,864 $ 4,281
Silk Way Airlines [Member] | Customer Financing [Member] | External Credit Rating, Non Investment Grade [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 13.00%  
AirBridgeCargo Airlines [Member] | Customer Financing [Member] | External Credit Rating, Non Investment Grade [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 13.00%  
American Airlines [Member] | Customer Financing [Member] | External Credit Rating, Non Investment Grade [Member]    
Concentration Risk [Line Items]    
Concentration Risk, Percentage 9.00%