Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Oct. 01, 2017	Oct. 02, 2016
Statement of Financial Position [Abstract]
Accounts receivable, allowance for doubtful accounts	$ 43.8	$ 41.7
Preferred stock, par value	$ 1.00	$ 1.00
Preferred stock, authorized	1,000	1,000
Preferred stock, issued	0	0
Common stock, par value	$ 0.20	$ 0.20
Common stock, authorized	250,000,000	250,000,000
Common stock, issued	116,300,000	113,600,000
Common stock, outstanding	116,300,000	113,600,000