Employee Benefits (Tables)

9 Months Ended

Sep. 28, 2019

Retirement Benefits [Abstract]

Components of Plan Benefit Expense

Pension

	Quarter ended						Year-to-date period ended
(millions)	September 28, 2019			September 29, 2018			September 28, 2019			September 29, 2018
Service cost	$	9		$	22		$	27		$	66
Interest cost	42			41			131			124
Expected return on plan assets	(86		)	(91		)	(254		)	(273		)
Amortization of unrecognized prior service cost	1			2			5			6
Recognized net (gain) loss	23			(36		)	34			(47		)
Net periodic benefit cost	$	(11	)	$	(62	)	$	(57	)	$	(124	)
Curtailment (gain) loss	(11		)	(30		)	(11		)	(30		)
Total pension (income) expense	$	(22	)	$	(92	)	$	(68	)	$	(154	)

Other nonpension postretirement

	Quarter ended						Year-to-date period ended
(millions)	September 28, 2019			September 29, 2018			September 28, 2019			September 29, 2018
Service cost	$	5		$	5		$	12		$	14
Interest cost	10			10			30			28
Expected return on plan assets	(23		)	(22		)	(65		)	(69		)
Amortization of unrecognized prior service (gain)	(2		)	(3		)	(6		)	(7		)
Recognized net (gain) loss	(55		)	—			(55		)	—
Net periodic benefit cost	(65		)	(10		)	(84		)	(34		)
Curtailment (gain) loss	(6		)	—			(6		)	—
Total postretirement benefit (income) expense	$	(71	)	$	(10	)	$	(90	)	$	(34	)

Postemployment

	Quarter ended						Year-to-date period ended
(millions)	September 28, 2019			September 29, 2018			September 28, 2019			September 29, 2018
Service cost	$	1		$	1		$	3		$	3
Interest cost	—			—			1			—
Recognized net (gain) loss	(1		)	(1		)	(3		)	(3		)
Total postemployment benefit expense	$	—		$	—		$	1		$	—

Contributions to Employee Benefit Plans

Company contributions to employee benefit plans are summarized as follows:

(millions)	Pension		Nonpension postretirement		Total
Quarter ended:
September 28, 2019	$	2	$	5	$	7
September 29, 2018	$	—	$	5	$	5
Year-to-date period ended:
September 28, 2019	$	6	$	13	$	19
September 29, 2018	$	266	$	13	$	279
Full year:
Fiscal year 2019 (projected)	$	7	$	18	$	25
Fiscal year 2018 (actual)	$	270	$	17	$	287