v2.4.0.8
Pension and Other Benefit Programs (Components of Pension Plan Expense (Benefit) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2014
Pension Plans
   
Defined Benefit Plan Disclosure [Line Items]    
Service cost $ 1 $ 2
Interest cost 9 18
Estimated return on plan assets (12) (24)
Net periodic expense (benefit) (2) (4)
SERP Plans
   
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0 0
Interest cost 1 2
Estimated return on plan assets 0 0
Net periodic expense (benefit) 1 2
Post-retirement Benefit Plans
   
Defined Benefit Plan Disclosure [Line Items]    
Service cost 0 0
Interest cost 2 4
Estimated return on plan assets 0 0
Net periodic expense (benefit) $ 2 $ 4