CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions	Apr. 03, 2020	Sep. 27, 2019
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 48.9	$ 46.5
Preferred stock, par value (in dollars per share)	$ 1	$ 1
Preferred stock, shares authorized (in shares)	1,000,000.0	1,000,000.0
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	189,000,000.0	189,000,000.0
Common stock, shares issued (in shares)	90,700,000	90,800,000
Common stock, shares outstanding (in shares)	90,700,000	90,800,000