Annual report pursuant to Section 13 and 15(d)

RETIREMENT AND SAVINGS BENEFIT PLANS - Fair Value of Investments Held by Defined Benefit Plan (Details)

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RETIREMENT AND SAVINGS BENEFIT PLANS - Fair Value of Investments Held by Defined Benefit Plan (Details) - Pension Plan - USD ($)
$ in Thousands
Mar. 28, 2020
Mar. 30, 2019
Mar. 31, 2018
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets measured at net asset value $ 1,623,309 $ 1,676,890  
Total plan assets 1,712,775 1,751,094 $ 1,751,760
Cash equivalents      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets measured at net asset value 54,745 36,349  
Domestic      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets measured at net asset value 70,503 82,659  
International      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets measured at net asset value 71,365 97,766  
Corporate and international bonds      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets measured at net asset value 1,293,768 1,309,123  
Alternative investments      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets measured at net asset value 132,928 150,993  
Level 1      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets in the fair value hierarchy 13,299 2,676  
Level 1 | Cash equivalents      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 9,421 3,023  
Level 1 | U.S. Treasury and government agencies      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 1 | Insurance contracts      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 1 | Commodities      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 3,878 (347)  
Level 2      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets in the fair value hierarchy 76,167 71,528  
Level 2 | Cash equivalents      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 2 | U.S. Treasury and government agencies      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 6 7  
Level 2 | Insurance contracts      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 76,161 71,521  
Level 2 | Commodities      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 3      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets in the fair value hierarchy 0 0  
Level 3 | Cash equivalents      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 3 | U.S. Treasury and government agencies      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 3 | Insurance contracts      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Level 3 | Commodities      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 0 0  
Total Plan Assets      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets in the fair value hierarchy 89,466 74,204  
Total Plan Assets | Cash equivalents      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 9,421 3,023  
Total Plan Assets | U.S. Treasury and government agencies      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 6 7  
Total Plan Assets | Insurance contracts      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets 76,161 71,521  
Total Plan Assets | Commodities      
Defined Benefit Plan, Plan Assets, Valuation Technique and Inputs [Abstract]      
Total plan assets $ 3,878 $ (347)