Pension and Other Postretirement Benefits (Tables)

6 Months Ended

Jun. 24, 2016

Compensation and Retirement Disclosure [Abstract]

Components of Net Periodic Benefit Cost

The following table summarizes the components of net periodic benefit cost for the Company’s pension and other postretirement benefit plans.

	Pension Plans												Postretirement Benefit Plans
	Second Quarter Ended						First Half Ended						Second Quarter Ended						First Half Ended
	June 24,   2016			June 26,   2015			June 24, 2016			June 26, 2015			June 24,   2016			June 26,   2015			June 24, 2016			June 26, 2015
	(in millions)
Components of net periodic benefit cost:
Service cost	$	28		$	32		$	55		$	64		$	—		$	1		$	1		$	2
Interest cost		34			37			69			74			2			2			3			4
Expected return on plan assets		(51	)		(52	)		(102	)		(104	)		(1	)		(1	)		(2	)		(2	)
Amortization of prior service costs (credits)		—			—			—			1			—			(1	)		(1	)		(2	)
Amortization of net loss		13			17			26			34			—			—			—			—
Net periodic benefit cost	$	24		$	34		$	48		$	69		$	1		$	1		$	1		$	2