XML 19 R46.htm IDEA: XBRL DOCUMENT v2.4.1.9
Property, Plant and Equipment (Details 2) (USD $)
In Millions, unless otherwise specified
12 Months Ended 0 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Apr. 02, 2012
Apr. 02, 2013
Property, plant and equipment          
Proceeds from sale of office building $ 14us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment $ 2us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment $ 133us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment    
Impairment of real estate (17)us-gaap_ImpairmentOfRealEstate 0us-gaap_ImpairmentOfRealEstate 0us-gaap_ImpairmentOfRealEstate    
Office Building          
Property, plant and equipment          
Proceeds from sale of office building       133us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeBuildingMember
 
Deferred gain on sale of property         (16)us-gaap_DeferredGainOnSaleOfProperty
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeBuildingMember
Deferred gain on sale of property, recognition period       10 years  
Impairment of real estate $ (17)us-gaap_ImpairmentOfRealEstate
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_OfficeBuildingMember