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Employee Benefit Plans | 3 Months Ended
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Mar. 31, 2018
Compensation And Retirement Disclosure [Abstract] |
Employee Benefit Plans | Note 10 - Employee benefit plans: The components of net periodic defined benefit pension cost are presented in the table below.
| Three months ended |
| March 31, |
| 2017 |  |  | 2018 |
| (In millions) |
Service cost | $ | 2.7 |  |  | $ | 3.0 |
Interest cost |  | 3.3 |  |  |  | 3.6 |
Expected return on plan assets |  | (2.5 | ) |  |  | (3.4 | )
Amortization of prior service cost |  | .1 |  |  |  | .1 |
Recognized actuarial losses |  | 3.2 |  |  |  | 3.5 |
Total | $ | 6.8 |  |  | $ | 6.8 |
The components of net periodic postretirement benefits other than pension (“OPEB”) cost are presented in the table below.
| Three months ended |
| March 31, |
| 2017 |  |  | 2018 |
| (In millions) |
Interest cost | $ | .1 |  |  | $ | .1 |
Amortization of prior service credit |  | (.1 | ) |  |  | (.2 | )
Recognized actuarial losses |  | - |  |  |  | .1 |
Total | $ | - |  |  | $ | - |
Upon the adoption of ASU 2017-07, Compensation - Retirement Benefits (Topic 715) Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, our net periodic defined benefit pension cost and other postretirement benefit cost, other than the service cost component, is presented as a separate line item (“Other components of net periodic pension and OPEB cost”) in our Condensed Consolidated Statements of Income for all periods presented. See Note 15. We expect our 2018 contributions for our pension and other postretirement plans to be approximately $17 million.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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