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NET PERIODIC BENEFIT COST - DEFINED BENEFIT PLANS | 3 Months Ended
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Mar. 28, 2020
Retirement Benefits [Abstract] |
NET PERIODIC BENEFIT COSTS - DEFINED BENEFIT PLANS | NET PERIODIC BENEFIT COST — DEFINED BENEFIT PLANS Following are the components of net periodic pension (benefit) expense for the three months ended March 28, 2020 and March 30, 2019:
| Year-to-Date
| Pension Benefits |  | Other Benefits
| U.S. Plans |  | Non-U.S. Plans |  | All Plans
(Millions of Dollars) | 2020 |  | 2019 |  | 2020 |  | 2019 |  | 2020 |  | 2019
Service cost | $ | 1.7 |  |  | $ | 3.0 |  |  | $ | 4.0 |  |  | $ | 3.7 |  |  | $ | 0.1 |  |  | $ | 0.1 |
Interest cost | 8.8 |  |  | 11.8 |  |  | 5.6 |  |  | 7.7 |  |  | 0.4 |  |  | 0.4 |
Expected return on plan assets | (14.7 | ) |  | (15.4 | ) |  | (10.3 | ) |  | (11.6 | ) |  | — |  |  | — |
Amortization of prior service cost (credit) | 0.3 |  |  | 0.2 |  |  | (0.2 | ) |  | (0.2 | ) |  | (0.3 | ) |  | (0.3 | )
Amortization of net loss (gain) | 2.1 |  |  | 2.0 |  |  | 2.9 |  |  | 2.2 |  |  | 0.1 |  |  | (0.1 | )
Settlement / curtailment loss | — |  |  | — |  |  | 0.1 |  |  | 0.1 |  |  | — |  |  | — |
Net periodic pension (benefit) expense | $ | (1.8 | ) |  | $ | 1.6 |  |  | $ | 2.1 |  |  | $ | 1.9 |  |  | $ | 0.3 |  |  | $ | 0.1 |
The components of net periodic benefit cost other than the service cost component are included in Other, net in the Consolidated Statements of Operations and 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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