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Pension and Other Benefit Programs Pension and Other Benefit Programs (Projected Plan Payments) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]  
2014 $ 49us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths
2015 49us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo
2016 50us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree
2017 50us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour
2018 50us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive
Next 5 years $ 257us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter