EMPLOYEE BENEFIT AND RETIREMENT PLANS

The following table presents the components of our pension expense of the defined benefit plans for the three months ended May 31, 2014 and 2013 (in millions):



	United States						International
	2014			2013			2014			2013
Defined benefit plans
Service cost	$	5.0		$	5.8		$	2.0		$	2.2
Interest costs	7.8			7.8			3.4			3.1
Expected return on plan assets	(9.7		)	(10.4		)	(4.7		)	(4.2		)
Amortization of prior service costs	—			—			0.1			0.1
Recognized net actuarial loss	2.9			7.4			1.2			1.4
Total pension expense	$	6.0		$	10.6		$	2.0		$	2.6

The following table presents the components of our pension expense of the defined benefit plans for the six months ended May 31, 2014 and 2013 (in millions):



	United States						International
	2014			2013			2014			2013
Defined benefit plans
Service cost	$	10.0		$	11.6		$	3.9		$	4.4
Interest costs	15.6			15.6			6.9			6.3
Expected return on plan assets	(19.4		)	(20.7		)	(9.4		)	(8.5		)
Amortization of prior service costs	—			—			0.2			0.2
Recognized net actuarial loss	5.9			14.8			2.3			2.8
Total pension expense	$	12.1		$	21.3		$	3.9		$	5.2

During the six months ended May 31, 2014 and 2013, we contributed $11.3 million and $37.7 million, respectively, to our pension plans. Total contributions to our pension plans in fiscal year 2013 were $42.7 million.

The following table presents the components of our other postretirement benefits expense (in millions):



	Three months ended May 31,					Six months ended May 31,
	2014		2013			2014		2013
Other postretirement benefits
Service cost	$	0.9	$	1.2		$	1.8	$	2.5
Interest costs	1.0		1.0			2.1		2.0
Amortization of prior service costs	—		(0.3		)	—		(0.6		)
Amortization of losses	—		0.3			—		0.7
Total other postretirement expense	$	1.9	$	2.2		$	3.9	$	4.6