Quarterly report pursuant to Section 13 or 15(d)

Pension and Other Postretirement Benefit Plans (Details)

v3.20.2
Pension and Other Postretirement Benefit Plans (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 26, 2020
Jun. 28, 2019
Jun. 26, 2020
Jun. 28, 2019
Net periodic pension and other Postretirement benefit cost        
Contributions to pension plan     $ 8 $ 22
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year $ 18   $ 18  
Pension Benefits        
Net periodic pension and other Postretirement benefit cost        
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets 7.50%   7.50%  
Service cost $ 28 $ 26 $ 56 52
Interest cost 59 73 118 145
Expected return on plan assets (145) (138) (292) (276)
Amortization of prior service cost (credit) 0 (1) 0 (2)
Amortization of net actuarial loss 42 38 85 76
Defined Benefit Plan Net Periodic Benefit Cost Excluding Settlement Curtailment and Special Termination Benefits $ (16) (2) $ (33) (5)
Other Benefits        
Net periodic pension and other Postretirement benefit cost        
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets 4.50%   4.50%  
Service cost $ 3 3 $ 6 5
Interest cost 5 6 11 13
Expected return on plan assets (4) (4) (8) (7)
Amortization of prior service cost (credit) 0 0 (1) (1)
Amortization of net actuarial loss 1 0 2 1
Defined Benefit Plan Net Periodic Benefit Cost Excluding Settlement Curtailment and Special Termination Benefits $ 5 $ 5 $ 10 $ 11