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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)		9 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)	Aug. 02, 2020 USD ($) $ / shares	Jul. 03, 2020 USD ($) cancer_center specialty_hospital	Nov. 01, 2019 USD ($)	Oct. 31, 2019 USD ($)	Sep. 27, 2019 USD ($)
Segment Reporting Information [Line Items]
Amount of accessible liquidity		$ 1,400,000,000
Cash and cash equivalents		769,200,000			$ 531,400,000
Merger Agreement with Siemens Healthineers \| Subsequent Event
Segment Reporting Information [Line Items]
Business acquisition, share price (in dollars per share) \| $ / shares	$ 177.50
Acquisition purchase price	$ 16,400,000,000
Potential termination fee	450,000,000
Merger Agreement with Siemens Healthineers \| Subsequent Event \| Minimum
Segment Reporting Information [Line Items]
Potential reverse termination fee	450,000,000
Merger Agreement with Siemens Healthineers \| Subsequent Event \| Maximum
Segment Reporting Information [Line Items]
Potential reverse termination fee	$ 925,000,000
Revolving Credit Facility
Segment Reporting Information [Line Items]
Loan facility, remaining borrowing capacity		600,000,000
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