IMPAIRMENT, RESTRUCTURING AND OTHER - Impairment, Restructuring and Other Charges (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 10.2	$ 1.0	$ 10.0	$ 0.8
Impairment, restructuring and other charges from continuing operations	10.2	1.0	10.0	0.8
Restructuring and other charges from discontinued operations	0.2	2.4	1.6	4.6
Total impairment, restructuring and other charges	10.4	3.4	11.6	5.4
Operating Expense
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ 10.2	$ 1.0	$ 10.0	$ 0.8