Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

v2.4.0.8
Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Employee Benefit Plans [Abstract]      
Defined Benefit Plan, Contributions by Employer $ 29 $ 19 $ 18