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Pension and Postretirement Health and Life Benefits
 3 Months Ended
Mar. 31, 2016
General Discussion of Pension and Other Postretirement Benefits [Abstract]  
Pension and Postretirement Health and Life Benefits
PENSION AND POSTRETIREMENT HEALTH AND LIFE BENEFITS

The components of net periodic benefit cost (credit) for the pension plans were as follows (in millions):
 
Three Months Ended
March 31,
 
2016
 
2015
Service costs
$
0.9

 
$
1.0

Interest costs
8.9

 
9.3

Expected return on plan assets (gains)
(10.5
)
 
(12.2
)
Net periodic benefit (credit)
$
(0.7
)
 
$
(1.9
)


The components of net periodic benefit cost for the postretirement health and life benefit plans were as follows (in millions):
 
Three Months Ended
March 31,
 
2016
 
2015
Service costs
$
—

 
$
0.1

Interest costs
2.1

 
2.2

Expected return on plan assets (gains)
(0.1
)
 
(0.2
)
Amortization of prior service (credits), net
(0.1
)
 
(0.1
)
Net periodic benefit cost
$
1.9

 
$
2.0



Centrus paid $1.3 million to participants of the non-qualified defined benefit pension plans in the three months ended March 31, 2016, and expects to make payments of $2.9 million in the remainder of 2016. The Company does not expect there to be required cash contributions for the qualified defined benefit pension plans in 2016 under ERISA, and therefore, does not expect to make contributions to these plans in 2016. The Company expects to contribute $5.4 million in 2016 to the postretirement health and life benefit plans. There is no required contribution for the postretirement health and life benefit plans under ERISA.