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Postretirement Health Care Plans - (Tables) | 6 Months Ended
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Jun. 29, 2019
Postemployment Benefits [Abstract] |
Net Periodic Postretirement Health Care Cost | Snap-on’s net periodic postretirement health care cost included the following components:
| Three Months Ended |  | Six Months Ended
(Amounts in millions) | June 29, 2019 |  | June 30, 2018 |  | June 29, 2019 |  | June 30, 2018
Interest cost | $ | 0.5 |  |  | $ | 0.4 |  |  | $ | 1.0 |  |  | $ | 0.9 |
Expected return on plan assets | (0.2 | ) |  | (0.2 | ) |  | (0.4 | ) |  | (0.4 | )
Amortization of unrecognized gain | (0.2 | ) |  | (0.1 | ) |  | (0.4 | ) |  | (0.2 | )
Net periodic postretirement health care cost | $ | 0.1 |  |  | $ | 0.1 |  |  | $ | 0.2 |  |  | $ | 0.3 |

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- Definition Tabular disclosure of the costs related to the various types of retirement plans including defined benefit pension plan cost, defined contribution plan cost, other postretirement benefit plan cost, and net periodic benefit cost. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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