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
	Second Quarter Ended						First Half Ended						Second Quarter Ended						First Half Ended
	June 28, 2013			June 29, 2012			June 28, 2013			June 29, 2012			June 28, 2013			June 29, 2012			June 28, 2013			June 29, 2012
	(in millions)
Components of net periodic benefit cost:
Service cost	$	33		$	29		$	65		$	59		$	1		$	2		$	2		$	3
Interest cost		33			33			66			66			1			2			3			5
Expected return on plan assets		(41	)		(36	)		(83	)		(71	)		(1	)		(1	)		(2	)		(2	)
Amortization of prior service (credits) cost		—			—			—			—			—			(1	)		1			(1	)
Amortization of net losses		21			17			43			34			—			1			(1	)		1
Curtailment loss		—			—			—			1			—			—			—			—

Net periodic benefit cost	$	46		$	43		$	91		$	89		$	1		$	3		$	3		$	6

Contributions. For the year ending December 31, 2013, the Company currently expects to contribute cash of approximately $165 million to its pension plans, which includes $95 million of voluntary contributions, and approximately $11 million to its other postretirement benefit plans. The Company contributed cash of $43 million to its pension plans and $4 million to its other postretirement benefit plans during the first half period ended June 28, 2013.