XML 31 R19.htm IDEA: XBRL DOCUMENT v3.4.0.3
Employee Retirement Benefits
 3 Months Ended
Mar. 31, 2016
Compensation and Retirement Disclosure [Abstract]  
Employee Retirement Benefits
Employee Retirement Benefits
The following summarizes the components of net periodic benefit cost for our qualified and supplemental pension plans:
(Dollars in millions)
Three months ended March 31,
 
2016
 
2015
Service cost
$
3

 
$
3

Interest cost
3

 
3

Expected return on plan assets
(5
)
 
(4
)
Amortization of actuarial loss and prior service cost
1

 
1

Net periodic benefit cost
$
2

 
$
3

 
 
 
 


See our 2015 Annual Report on Form 10-K, Item 8, Note 13, Employee Retirement Benefits, Page 146, for information on our retirement benefits. We made matching contributions totaling $4 million to our 401(k) and Top Hat savings plans during both the first quarters of 2016 and 2015.

We contributed $5 million to our qualified pension plan during the first quarter of 2016. We do not anticipate further contributions to our qualified pension plan during the remainder of 2016.