Note 6: Employee Benefit Plans (Tables)
9 Months Ended
Sep. 30, 2011
Notes to Condensed Consolidated Financial Statements [Abstract] 
Schedule of Defined Benefit Plans Disclosures [Text Block]
  Quarter Ended September 30, Nine Months Ended September 30,
(Dollars in millions)  2011  2010  2011  2010
Defined Benefit Plans $627 $438 $697 $949
Defined Contribution Plans $52 $46 $165 $142

  Pension Benefits Other Postretirement Benefits
  Quarter Ended September 30, Quarter Ended September 30,
(Dollars in millions) 2011 2010 2011 2010
Service cost $ 111 $ 99 $ 1 $ 1
Interest cost   325   321   9   11
Expected return on plan assets   (458)   (430)   -   -
Amortization   (2)   (4)   -   (1)
Recognized actuarial net loss (gain)   116   71   (2)   -
Net settlement and curtailment loss    -   -   -   -
Total net periodic benefit cost $ 92 $ 57 $ 8 $ 11
             
             
  Pension Benefits Other Postretirement Benefits
  Nine Months Ended September 30, Nine Months Ended September 30,
(Dollars in millions) 2011 2010 2011 2010
Service cost $ 333 $ 297 $ 3 $ 2
Interest cost   975   963   29   34
Expected return on plan assets   (1,372)   (1,289)   -   -
Amortization   (8)   (12)   (2)   (2)
Recognized actuarial net loss (gain)   347   213   (6)   (1)
Net settlement and curtailment loss    13   17   -   -
Total net periodic benefit cost $ 288 $ 189 $ 24 $ 33