v2.4.0.8
Employee Benefits (Tables)
6 Months Ended
Jun. 30, 2013
Employee Benefits and Other Expenses (Tables) [Abstract]  
Components of Net Periodic Benefit Cost
             
             
       2013  2012
      Pension benefits  Pension benefits 
       Non-Other  Non-Other
(in millions)Qualifiedqualifiedbenefits Qualifiedqualifiedbenefits
Quarter ended June 30,    
Service cost $ - - 2  1 - 3
Interest cost   113 7 12  128 8 15
Expected return on plan assets  (170) - (9)  (163) - (8)
Amortization of net actuarial loss  42 3 -  33 2 -
Settlement  68 - -  - 5 (1)
 Net periodic benefit cost (income)$ 53 10 5  (1) 15 9
Six months ended June 30,    
Service cost $ - - 5  1 - 6
Interest cost   226 14 24  256 16 30
Expected return on plan assets  (341) - (18)  (325) - (17)
Amortization of net actuarial loss  84 7 -  66 5 -
Amortization of prior service credit  - - (1)  - - (1)
Settlement  68 4 -  1 5 (1)
 Net periodic benefit cost (income)$ 37 25 10  (1) 26 17