v2.4.0.8
Employee Benefits (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Defined Benefit Plan Disclosure [Line Items]    
Benefit cost $ 1 $ 1
Common stock shares reserved for future issuance 1.3  
Compensation expenses 1 1
Non-U.S. Benefit Plans [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Cost or expenses included in compensation and benefit expense 5 5
U.S. Defined Contribution Savings Plan [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Percentage of employer contributions 100.00%  
Percentage of eligible employee contributions receiving employer contributions 6.00% 4.00%
Defined contributions plan expense 2 1
Employer retirement contributions [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Defined contributions plan expense $ 1 $ 1
Share-based compensation [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Common stock shares reserved for future issuance 3.1  
Offering periods for ESPP shares, months 6 months  
Percentage of fair market value of common stock 85.00%  
Percentage of discount to employees on purchase of common stock under ESPP 15.00%