DEBT (Schedule of Long-Term Debt) (Details) - USD ($) $ in Millions		Sep. 24, 2020	Mar. 31, 2020	Mar. 25, 2020		Jun. 26, 2019
Debt Instrument [Line Items]
Finance lease obligations				$ 96.5	[1]	$ 48.4
Total long-term debt				1,446.5		1,221.7
Less: unamortized debt issuance costs and discounts				(4.6)		(5.4)
Total long-term debt, less unamortized debt issuance costs and discounts				1,441.9		1,216.3
Less: current installments of long-term debt and finance leases(1)	[2]			(13.0)		(9.7)
Long-term debt and finance leases, less current installments				1,428.9		1,206.6
5.000% notes [Member]
Debt Instrument [Line Items]
Senior notes				350.0		350.0
3.875% notes [Member]
Debt Instrument [Line Items]
Senior notes				300.0		300.0
$1B Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity				1,000.0
Revolving credit facility				$ 700.0		$ 523.3
Subsequent Event [Member] | $1B Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Revolving credit facility, maximum borrowing capacity		$ 1,000.0	$ 800.0

[1] Finance lease assets are recorded in Property and equipment, at cost, and the related current and long-term lease liabilities are recorded within Other accrued liabilities and Long-term debt and finance leases, less current installments, respectively.

[2] Current installments of long-term debt consist only of finance leases for the periods presented and are recorded within Other accrued liabilities in the Consolidated Balance Sheets (Unaudited). Refer to Note 11 - Accrued and Other Liabilities for further details.