Pensions and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 28, 2015

Compensation and Retirement Disclosure [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit (income)/expense are as follows:

	Second Quarter Ended
	June 28, 2015			June 29, 2014			June 28, 2015			June 29, 2014
	Pension Benefits						Other Retiree Benefits
	(In millions)
Service cost	$	7		$	8		$	1		$	1
Interest cost	26			35			2			2
Expected return on plan assets	(45		)	(55		)	—			—
Amortization of prior service credit	—			—			(2		)	(2		)
Amortization of unrecognized loss	1			—			—			—
Net settlement losses	9			—			—			—
Net periodic benefit (income)/expense	$	(2	)	$	(12	)	$	1		$	1

	Six Months Ended
	June 28, 2015			June 29, 2014			June 28, 2015			June 29, 2014
	Pension Benefits						Other Retiree Benefits
	(In millions)
Service cost	$	13		$	15		$	2		$	2
Interest cost	52			70			4			4
Expected return on plan assets	(93		)	(111		)	—			—
Amortization of prior service credit	—			—			(3		)	(3		)
Amortization of unrecognized loss	2			—			—			—
Net settlement losses	9			—			—			—
Net periodic benefit (income)/expense	$	(17	)	$	(26	)	$	3		$	3