v3.2.0.727
Discontinued Operations Reconciliation of Major Classes of Assets and Liabilities of the Discontinued Operation classified as Held for Sale (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Disposal Group, Including Discontinued Operation, Assets [Abstract]      
Cash and cash equivalents $ 64   $ 44
Total assets classified as held for sale 316 $ 895  
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]      
Total liabilities classified as held for sale 173 391  
Discontinued Operations, Held-for-sale or Disposed of by Sale | Thermal Systems      
Disposal Group, Including Discontinued Operation, Assets [Abstract]      
Cash and cash equivalents 64 45  
Accounts receivable, net 76 228  
Inventories, net 23 91  
Property, net 73 322  
Investments in affiliates 41 130  
Intangible assets, net 1 18  
Other assets 8 61  
Total assets classified as held for sale 286 895  
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]      
Accounts payable 95 303  
Accrued liabilities 11 53  
Other liabilities 7 35  
Total liabilities classified as held for sale 113 391  
Discontinued Operations, Held-for-sale or Disposed of by Sale | Thermal Systems | SDAAC      
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]      
Noncontrolling interest attributable to discontinued operations 125 118  
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations | Reception Systems      
Disposal Group, Including Discontinued Operation, Assets [Abstract]      
Total assets classified as held for sale 30 0  
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]      
Total liabilities classified as held for sale $ 60 $ 0