XML 26 R30.htm IDEA: XBRL DOCUMENT v2.4.0.8
Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross $ 188 $ 163
Less: accumulated depreciation (64) (61)
Net property, plant and equipment 124 102
Information Technology Equipment [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross 60 27
Operating Equipment [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross 53 57
Land and Buildings [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross 64 60
Construction in Progress [Member]
   
Property, Plant and Equipment [Line Items]    
Property, plant and equipment, Gross $ 11 $ 19