Pension and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 25, 2015

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
	Third Quarter Ended						Year-to-Date Ended						Third Quarter Ended						Year-to-Date Ended
	September 25, 2015			September 26, 2014			September 25, 2015			September 26, 2014			September 25, 2015			September 26, 2014			September 25, 2015			September 26, 2014
	(in millions)
Components of net periodic benefit cost:
Service cost	$	29		$	26		$	93		$	80		$	—		$	(2	)	$	2		$	—
Interest cost		38			37			112			110			1			4			5			8
Expected return on plan assets		(51	)		(48	)		(155	)		(145	)		(1	)		(1	)		(3	)		(3	)
Amortization of prior service costs (credits)		—			—			1			1			—			—			(2	)		(1	)
Amortization of net loss (gain)		17			4			51			13			—			(1	)		—			(2	)
Curtailment loss		3			—			3			1			—			(1	)		—			(1	)
Net periodic benefit cost	$	36		$	19		$	105		$	60		$	—		$	(1	)	$	2		$	1