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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	6 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Apr. 03, 2020 USD ($) specialty_hospital cancer_center	Nov. 01, 2019 USD ($)	Oct. 31, 2019 USD ($)	Sep. 27, 2019 USD ($)
Segment Reporting Information [Line Items]
Amount of accessible liquidity	$ 1,300,000,000
Cash and cash equivalents	667,800,000			$ 531,400,000
Revolving Credit Facility
Segment Reporting Information [Line Items]
Loan facility, remaining borrowing capacity	661,000,000
Loan facility, maximum borrowing capacity	$ 1,200,000,000	$ 1,200,000,000	$ 1,800,000,000
India
Segment Reporting Information [Line Items]
Number of cancer centers \| cancer_center	12
Number of specialty hospitals \| specialty_hospital	1
Sri Lanka
Segment Reporting Information [Line Items]
Number of cancer centers \| cancer_center	1