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Subsequent Events (Details) - USD ($)
$ in Millions
Jul. 01, 2015
Jun. 30, 2015
Abacus International Holdings Ltd [Member] | Subsequent Event [Member]    
Subsequent Event [Line Items]    
Ownership Percentage 65.00%  
Net cash consideration $ 433  
Revolving Credit Facility [Member] | Abacus International Holdings Ltd [Member] | Subsequent Event [Member]    
Subsequent Event [Line Items]    
Draw on revolving credit facility $ 70  
Abacus International Holdings Ltd [Member]    
Subsequent Event [Line Items]    
Ownership Percentage   35.00%
Abacus International Holdings Ltd [Member] | Consortium of Airlines [Member]    
Subsequent Event [Line Items]    
Ownership Percentage   65.00%