Employee Benefits (Tables)

6 Months Ended

Jun. 27, 2020

Retirement Benefits [Abstract]

Components of Plan Benefit Expense

Pension

	Quarter ended				Year-to-date period ended
(millions)	June 27, 2020		June 29, 2019		June 27, 2020		June 29, 2019
Service cost	$	9	$	9	$	18	$	18
Interest cost	33		44		68		89
Expected return on plan assets	(85)		(83)		(170)		(168)
Amortization of unrecognized prior service cost	2		2		4		4
Recognized net (gain) loss	43		10		57		11
Net periodic benefit cost	$	2	$	(18)	$	(23)	$	(46)
Curtailment (gain) loss	(7)		—		(7)		—
Total pension (income) expense	$	(5)	$	(18)	$	(30)	$	(46)

Other nonpension postretirement

	Quarter ended				Year-to-date period ended
(millions)	June 27, 2020		June 29, 2019		June 27, 2020		June 29, 2019
Service cost	$	4	$	4	$	7	$	7
Interest cost	8		10		16		20
Expected return on plan assets	(23)		(21)		(46)		(42)
Amortization of unrecognized prior service cost	(3)		(2)		(5)		(4)
Total postretirement benefit (income) expense	$	(14)	$	(9)	$	(28)	$	(19)

Postemployment

	Quarter ended				Year-to-date period ended
(millions)	June 27, 2020		June 29, 2019		June 27, 2020		June 29, 2019
Service cost	$	1	$	1	$	2	$	2
Interest cost	—		1		—		1
Recognized net (gain) loss	(1)		(1)		(2)		(2)
Total postemployment benefit expense	$	—	$	1	$	—	$	1

Contributions to Employee Benefit Plans

Company contributions to employee benefit plans are summarized as follows:

(millions)	Pension		Nonpension postretirement		Total
Quarter ended:
June 27, 2020	$	—	$	6	$	6
June 29, 2019	$	3	$	4	$	7
Year-to-date period ended:
June 27, 2020	$	3	$	9	$	12
June 29, 2019	$	4	$	8	$	12
Full year:
Fiscal year 2020 (projected)	$	7	$	19	$	26
Fiscal year 2019 (actual)	$	10	$	18	$	28