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RETIREMENT AND BENEFIT PLANS (Tables) | 3 Months Ended
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May 06, 2018
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Net Benefit Costs [Table Text Block] |
| Pension Plans |  | SERP Plans
| Thirteen Weeks Ended |  | Thirteen Weeks Ended
(In millions) | 5/6/18 |  | 4/30/17 |  | 5/6/18 |  | 4/30/17
Service cost, including plan expenses | $ | 8.3 |  |  | $ | 6.9 |  |  | $ | 1.3 |  |  | $ | 1.2 |
Interest cost | 6.5 |  |  | 6.4 |  |  | 1.0 |  |  | 1.0 |
Expected return on plan assets | (10.0 | ) |  | (9.7 | ) |  | — |  |  | — |
Loss on settlement | — |  |  | 9.4 |  |  | — |  |  | — |
Total | $ | 4.8 |  |  | $ | 13.0 |  |  | $ | 2.3 |  |  | $ | 2.2 |
Net benefit cost related to the Postretirement Plans was immaterial for the thirteen weeks ended May 6, 2018 and April 30, 2017.

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
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