Employee Benefits (Tables)

9 Months Ended

Oct. 01, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Plan Benefit Expense

Pension

	Quarter ended						Year-to-date period ended
(millions)	October 1, 2016			October 3, 2015			October 1, 2016			October 3, 2015
Service cost	$	25		$	28		$	74		$	84
Interest cost	43			50			131			156
Expected return on plan assets	(87		)	(100		)	(266		)	(300		)
Amortization of unrecognized prior service cost	3			4			10			10
Recognized net loss	28			—			28			—
Total pension (income) expense	$	12		$	(18	)	$	(23	)	$	(50	)

Other nonpension postretirement

	Quarter ended						Year-to-date period ended
(millions)	October 1, 2016			October 3, 2015			October 1, 2016			October 3, 2015
Service cost	$	5		$	7		$	15		$	24
Interest cost	10			11			29			36
Expected return on plan assets	(22		)	(25		)	(67		)	(75		)
Amortization of unrecognized prior service cost (credit)	(2		)	(2		)	(7		)	(3		)
Total postretirement benefit (income) expense	$	(9	)	$	(9	)	$	(30	)	$	(18	)

Postemployment

	Quarter ended				Year-to-date period ended
(millions)	October 1, 2016		October 3, 2015		October 1, 2016		October 3, 2015
Service cost	$	1	$	2	$	5	$	5
Interest cost	1		1		3		3
Recognized net loss	1		1		3		3
Total postemployment benefit expense	$	3	$	4	$	11	$	11

Contributions to Employee Benefit Plans

Company contributions to employee benefit plans are summarized as follows:

(millions)	Pension		Nonpension postretirement		Total
Quarter ended:
October 1, 2016	$	3	$	3	$	6
October 3, 2015	$	1	$	3	$	4
Year-to-date period ended:
October 1, 2016	$	18	$	11	$	29
October 3, 2015	$	11	$	10	$	21
Full year:
Fiscal year 2016 (projected)	$	28	$	15	$	43
Fiscal year 2015 (actual)	$	19	$	14	$	33