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Employee Benefit Plans | 3 Months Ended
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Dec. 31, 2018
Compensation And Retirement Disclosure [Abstract] |
Employee Benefit Plans | NOTE J - EMPLOYEE BENEFIT PLANS Plan contributions For the three months ended December 31, 2018, Ashland contributed $1 million to its non-U.S. pension plans and zero to its U.S. pension plans. Ashland expects to make additional contributions of approximately $5 million to its non-U.S. plans during the remainder of 2019. Plan remeasurement Ashland settled a non-U.S. pension plan during the three months ended December 31, 2018, which required the plan to be remeasured. This remeasurement resulted in a curtailment gain of $18 million. Components of net periodic benefit costs (income) The following table details the components of pension and other postretirement benefit costs for continuing operations.
|  | Pension benefits |  |  | Other postretirement benefits |
(In millions) |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Three months ended December 31 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 2 |  |  | $ | 2 |  |  | $ | — |  |  | $ | 1 |
Interest cost |  |  | 3 |  |  |  | 3 |  |  |  | — |  |  |  | — |
Expected return on plan assets |  |  | (3 | ) |  |  | (3 | ) |  |  | — |  |  |  | — |
Curtailment |  |  | (18 | ) |  |  | — |  |  |  | — |  |  |  | — |
Actuarial (gain) loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Total net periodic benefit costs |  | $ | (16 | ) |  | $ | 2 |  |  | $ | — |  |  | $ | 1 |
For segment reporting purposes, service cost is proportionately allocated to each segment, excluding the Unallocated and other segment, and is recorded within the selling, general and administrative expense and cost of sales captions on the Statements of Consolidated Comprehensive Loss (Income). All other components are recorded within the other net periodic benefit income caption on the Statements of Consolidated Comprehensive Loss (Income).

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