PENSION AND POSTRETIREMENT BENEFITS - Other Changes in Plan Assets and Benefit Obligations (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |||
|---|---|---|---|---|---|
May 31, 2026 |
May 25, 2025 |
Feb. 25, 2024 |
May 31, 2026 |
May 25, 2025 |
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| PENSION AND POSTRETIREMENT BENEFITS | |||||
| Settlement loss (gain) | $ (6.8) | ||||
| Pension Plan [Member] | |||||
| PENSION AND POSTRETIREMENT BENEFITS | |||||
| Net actuarial gain (loss) | $ (2.5) | $ 72.3 | |||
| Amendments | (1.5) | (0.1) | |||
| Amortization of prior service cost (benefit) | 1.5 | 1.6 | |||
| Settlement loss (gain) | $ 2.7 | $ (13.0) | 2.7 | (13.0) | |
| Recognized net actuarial gain | 25.2 | 3.5 | |||
| Net amount recognized | (25.0) | 57.3 | |||
| Other Postretirement Benefits Plan [Member] | |||||
| PENSION AND POSTRETIREMENT BENEFITS | |||||
| Net actuarial gain (loss) | 0.4 | (8.2) | |||
| Amortization of prior service cost (benefit) | (1.7) | (1.7) | |||
| Recognized net actuarial gain | 3.6 | 1.5 | |||
| Net amount recognized | $ (4.9) | $ (11.4) | |||
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- Definition Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for plan amendments, that has not been recognized in net periodic benefit (cost) credit. No definition available.
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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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, before tax, of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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