Earnings Per Share - SBH (Schedule Of Earnings Per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Dec. 29, 2019	Dec. 30, 2018
Numerator
Net (loss) income from continuing operations attributable to controlling interest	$ (38.6)	$ (29.3)
Income from discontinued operations attributable to controlling interest	2.8	(83.2)
Net (loss) income attributable to controlling interest	$ (35.8)	$ (112.5)
Denominator
Weighted average shares outstanding - basic	47.7	53.4
Weighted average shares outstanding - diluted	47.7	53.4
Earnings per share
Basic earnings per share from continuing operations	$ (0.81)	$ (0.56)
Basic earnings per share from discontinued operations	0.06	(1.55)
Basic earnings per share	(0.75)	(2.11)
Diluted earnings per share from continuing operations	(0.81)	(0.56)
Diluted earnings per share from discontinued operations	0.06	(1.55)
Diluted earnings per share	$ (0.75)	$ (2.11)
Weighted average number of anti-dilutive shares excluded from denominator	0.1