Goodwill and Intangibles Level 4 (Details) - Schedule of Intangible Assets (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]      
Amortization of Intangible Assets $ 14 $ 13 $ 13
Finite-Lived Intangible Assets, Gross 246 230  
Impairment of Intangible Assets, Finite-lived (17) (17)  
Finite-Lived Intangible Assets, Accumulated Amortization (148) (131)  
Intangible Assets, Net (Excluding Goodwill) 81 82  
Patents and Technology [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 112 112  
Impairment of Intangible Assets, Finite-lived 0 0  
Finite-Lived Intangible Assets, Accumulated Amortization (78) (70)  
Intangible Assets, Net (Excluding Goodwill) 34 42  
Customer Lists and Contracts [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 109 93  
Impairment of Intangible Assets, Finite-lived (17) (17)  
Finite-Lived Intangible Assets, Accumulated Amortization (62) (54)  
Intangible Assets, Net (Excluding Goodwill) 30 22  
Other Intangible Assets [Member]      
Finite-Lived Intangible Assets [Line Items]      
Finite-Lived Intangible Assets, Gross 25 25  
Impairment of Intangible Assets, Finite-lived 0 0  
Finite-Lived Intangible Assets, Accumulated Amortization (8) (7)  
Intangible Assets, Net (Excluding Goodwill) $ 17 $ 18