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
Sep. 30, 2016
Oct. 02, 2015
Sep. 30, 2016
Oct. 02, 2015
Net periodic pension and other Postretirement benefit cost        
Contributions to pension plan     $ 519 $ 92
Pension plans, anticipated additional contributions for remainder of current fiscal year     180  
Pension Benefits        
Net periodic pension and other Postretirement benefit cost        
Service cost $ 59 $ 66 178 199
Interest cost 79 95 239 285
Expected return on plan assets (161) (176) (490) (529)
Amortization of prior service cost (credit) 0 (1) (1) (1)
Amortization of net actuarial loss 46 50 138 149
Net periodic benefit cost (credit) 23 34 64 103
Special termination benefits 4 0 17 9
Other 0 0 0 0
Total cost recognized in statements of income 27 34 81 112
Other Benefits        
Net periodic pension and other Postretirement benefit cost        
Service cost 6 7 17 21
Interest cost 8 9 23 28
Expected return on plan assets (3) (3) (9) (9)
Amortization of prior service cost (credit) (5) (5) (14) (14)
Amortization of net actuarial loss 2 3 5 8
Net periodic benefit cost (credit) 8 11 22 34
Special termination benefits 0 0 0 0
Other 31 0 31 0
Total cost recognized in statements of income $ 39 $ 11 $ 53 $ 34