Quarterly report pursuant to Section 13 or 15(d)

Pension and Other Postretirement Benefit Plans (Details)

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Pension and Other Postretirement Benefit Plans (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Oct. 02, 2015
Sep. 26, 2014
Oct. 02, 2015
Sep. 26, 2014
Net periodic pension and other Postretirement benefit cost        
Contributions to pension plan     $ 92 $ 168
Pension plans, anticipated additional contributions for remainder of current fiscal year     41  
Pension Benefits        
Net periodic pension and other Postretirement benefit cost        
Service cost $ 66 $ 62 199 196
Interest cost 95 101 285 304
Expected return on plan assets (176) (179) (529) (537)
Amortization of prior service cost (credit) (1) 0 (1) (1)
Amortization of net actuarial loss 50 18 149 54
Net periodic benefit cost (credit) 34 2 103 16
Defined Benefit Plan, Special Termination Benefits 0 0 9 0
Defined Benefit Plan, Settlements, Benefit Obligation 0 0 0 2
Total cost (credit) recognized in statements of income 34 2 112 18
Other Benefits        
Net periodic pension and other Postretirement benefit cost        
Service cost 7 7 21 20
Interest cost 9 11 28 32
Expected return on plan assets (3) (3) (9) (9)
Amortization of prior service cost (credit) (5) (4) (14) (12)
Amortization of net actuarial loss 3 0 8 2
Net periodic benefit cost (credit) 11 11 34 33
Defined Benefit Plan, Special Termination Benefits 0 0 0 0
Defined Benefit Plan, Settlements, Benefit Obligation 0 0 0 0
Total cost (credit) recognized in statements of income $ 11 $ 11 $ 34 $ 33