RECEIVABLES (Details) - USD ($) $ in Millions	Apr. 03, 2020	Sep. 27, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Trade and unbilled receivables, gross	$ 1,131.2	$ 1,193.5
Allowance for doubtful accounts	(48.9)	(46.5)
Trade and unbilled receivables, net	1,082.3	1,147.0
Short-term	1,004.8	1,106.3
Long-term	77.5	40.7
Notes Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Long-term notes receivable	$ 34.9	$ 33.6