Segment Information (Net Sales Relating To Segments) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Revenue from External Customer [Line Items]
Net sales	$ 984.3	$ 1,022.2	$ 2,793.6	$ 2,809.2
Operating Segments
Revenue from External Customer [Line Items]
Net sales	984.3	1,022.2	2,793.6	2,809.2
HHI | Operating Segments
Revenue from External Customer [Line Items]
Net sales	281.6	354.6	908.4	990.7
HPC | Operating Segments
Revenue from External Customer [Line Items]
Net sales	250.6	243.4	805.4	782.3
GPC | Operating Segments
Revenue from External Customer [Line Items]
Net sales	241.5	221.7	684.2	641.3
H&G | Operating Segments
Revenue from External Customer [Line Items]
Net sales	$ 210.6	$ 202.5	$ 395.6	$ 394.9