EMPLOYEE BENEFIT PLANS (Assumptions Used to Determine the Postretirement Benefit Obligation and the Net Periodic Benefit Cost) (Details) |
12 Months Ended | |
|---|---|---|
Mar. 30, 2019 |
Mar. 31, 2018 |
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] | ||
| Weighted average discount rate | 3.80% | 4.00% |
| Medical care cost trend rate: | ||
| Ultimate trend rate | 6.00% | 6.00% |
| Year that rate reaches ultimate trend rate | 2025 | 2024 |
| Medical Care Cost [Member] | ||
| Medical care cost trend rate: | ||
| Trend rate assumed for next year | 8.50% | 8.00% |
| Dental Care Cost [Member] | ||
| Medical care cost trend rate: | ||
| Trend rate assumed for next year | 5.00% | 5.00% |