Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net foreign currency translation adjustment reclassifications to net income (loss)	$ 0.0	$ 0.0	$ 2.5	$ 11.7
Net unrealized gain (loss) on derivative instruments - tax impact	(1.1)	0.9	(4.7)	2.0
Reclassification of net unrealized (gains) losses on derivative instruments to net income - tax impact	0.0	(0.4)	(0.7)	(0.9)
Reclassification of net pension and other post-retirement benefit losses to net income - tax impact	$ 0.2	$ 0.2	$ 0.5	$ 0.5