|
Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2014
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Employee Benefit Plans [Abstract] | |||
| Defined Benefit Plan, Contributions by Employer | $ 11us-gaap_DefinedBenefitPlanContributionsByEmployer | $ 12us-gaap_DefinedBenefitPlanContributionsByEmployer | $ 12us-gaap_DefinedBenefitPlanContributionsByEmployer |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The increase in the fair value of plan assets from contributions made by the employer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|