Retirement Plans (Tables)

3 Months Ended

Apr. 03, 2021

Retirement Benefits [Abstract]

Schedule of Components of Net Periodic Benefit Cost (Credit)

The components of net periodic benefit cost (credit) for these plans are as follows:

	Three Months Ended
(In millions)	April 3, 2021		April 4, 2020
Pension Benefits
Service cost	$	29	$	26
Interest cost	63		73
Expected return on plan assets	(144)		(144)
Amortization of net actuarial loss	39		46
Amortization of prior service cost	3		3
Net periodic benefit cost (credit)	$	(10)	$	4
Postretirement Benefits Other Than Pensions
Service cost	$	1	$	1
Interest cost	1		2
Amortization of net actuarial loss	(1)		—
Amortization of prior service credit	(1)		(1)
Net periodic benefit cost	$	—	$	2