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Retirement Plans
9 Months Ended
Oct. 01, 2011
Retirement Plans [Abstract] 
Retirement Plans
Note 3: Retirement Plans
We provide defined benefit pension plans and other postretirement benefits to eligible employees. The components of net periodic benefit cost for these plans are as follows:
                                 
                    Postretirement Benefits  
    Pension Benefits     Other Than Pensions  
    October 1,     October 2,     October 1,     October 2,  
(In millions)   2011     2010     2011     2010  
 
Three Months Ended
                               
Service cost
  $ 32     $ 31     $ 2     $ 2  
Interest cost
    82       79       8       9  
Expected return on plan assets
    (98 )     (92 )            
Amortization of prior service cost (credit)
    4       4       (2 )     (2 )
Amortization of net loss
    19       9       3       3  
 
Net periodic benefit cost
  $ 39     $ 31     $ 11     $ 12  
 
Nine Months Ended
                               
 
Service cost
  $ 96     $ 93     $ 6     $ 6  
Interest cost
    246       237       24       25  
Expected return on plan assets
    (294 )     (276 )            
Amortization of prior service cost (credit)
    12       12       (5 )     (4 )
Amortization of net loss
    57       27       9       9  
 
Net periodic benefit cost
  $ 117     $ 93     $ 34     $ 36