18. Pension and Other Postretirement Benefits

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 27, 2013			September 28, 2012			September 27, 2013			September 28, 2012			September 27, 2013			September 28, 2012			September 27, 2013			September 28, 2012
	(in millions)
Components of net periodic benefit cost:
Service cost	$	30		$	26		$	95		$	85		$	1		$	—		$	3		$	3
Interest cost		33			34			99			100			2			2			5			7
Expected return on plan assets		(41	)		(37	)		(124	)		(108	)		—			—			(2	)		(2	)
Amortization of prior service costs (credits)		1			1			1			1			(1	)		(1	)		(2	)		(2	)
Amortization of net loss		20			17			63			51			—			—			1			1
Curtailment loss		2			4			2			5			—			—			—			—

Net periodic benefit cost	$	45		$	45		$	136		$	134		$	2		$	1		$	5		$	7

Contributions. The Company contributed cash of $93 million to its pension plans and $5 million to its other postretirement benefit plans during the year-to-date period ended September 27, 2013. The Company expects to contribute an additional $13 million to $52 million to its pension plans and $6 million to its other postretirement benefit plans during the fourth quarter ended December 31, 2013.