Pension and Retiree Medical Benefits

The components of net periodic benefit cost for pension and retiree medical plans are as follows:



	12 Weeks Ended
	Pension												Retiree Medical
	6/16/2018			6/17/2017			6/16/2018			6/17/2017			6/16/2018			6/17/2017
	U.S.						International
Service cost	$	99		$	92		$	22		$	21		$	8		$	7
Interest cost	111			108			23			21			8			8
Expected return on plan assets	(217		)	(196		)	(48		)	(40		)	(5		)	(5		)
Amortization of prior service cost/(credits)	—			1			—			—			(4		)	(6		)
Amortization of net losses/(gains)	42			28			11			12			(3		)	(3		)
	35			33			8			14			4			1
Special termination benefits	—			1			—			—			—			—
Total	$	35		$	34		$	8		$	14		$	4		$	1



	24 Weeks Ended
	Pension												Retiree Medical
	6/16/2018			6/17/2017			6/16/2018			6/17/2017			6/16/2018			6/17/2017
	U.S.						International
Service cost	$	199		$	185		$	40		$	37		$	15		$	13
Interest cost	222			216			40			36			16			17
Expected return on plan assets	(435		)	(392		)	(84		)	(70		)	(9		)	(10		)
Amortization of prior service cost/(credits)	1			1			—			—			(9		)	(12		)
Amortization of net losses/(gains)	83			56			19			21			(5		)	(6		)
	70			66			15			24			8			2
Special termination benefits	3			2			1			—			—			—
Total	$	73		$	68		$	16		$	24		$	8		$	2

We regularly evaluate opportunities to reduce risk and volatility associated with our pension and retiree medical plans. During the first quarter of 2018, we made discretionary contributions of $1.4 billion to the PepsiCo Employees Retirement Plan A (Plan A) in the United States. We made discretionary contributions to our international pension plans of $17 million in the first quarter of 2018 and $6 million in the second quarter of 2017. There were no discretionary contributions made in the second quarter of 2018 or the first quarter of 2017.