FINANCIAL INFORMATION FOR SUBSIDIARY GUARANTORS AND NON-GUARANTORS - Condensed Consolidating Statement of Comprehensive Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Schedule of Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	$ 149.0	$ 165.2	$ 127.8	$ 100.3
Other comprehensive income (loss):
Net foreign currency translation adjustment	15.8	1.8	15.7	(2.2)
Net change in derivatives	0.9	1.1	1.6	4.5
Net change in pension and other post-retirement benefits	0.3	0.5	0.6	0.9
Total other comprehensive income (loss)	17.0	3.4	17.9	3.2
Comprehensive income (loss)	166.0	168.6	145.7	103.5
Reportable Legal Entities | Parent
Schedule of Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	149.2	165.6	128.4	100.5
Other comprehensive income (loss):
Net foreign currency translation adjustment	15.8	1.8	15.7	(2.2)
Net change in derivatives	0.9	1.1	1.6	4.5
Net change in pension and other post-retirement benefits	0.3	0.5	0.6	0.9
Total other comprehensive income (loss)	17.0	3.4	17.9	3.2
Comprehensive income (loss)	166.2	169.0	146.3	103.7
Reportable Legal Entities | Subsidiary Guarantors
Schedule of Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	162.3	167.2	162.8	110.0
Other comprehensive income (loss):
Net foreign currency translation adjustment	0.0	0.0	0.0	0.0
Net change in derivatives	(1.1)	(0.2)	(0.7)	0.8
Net change in pension and other post-retirement benefits	0.1	0.3	0.2	0.3
Total other comprehensive income (loss)	(1.0)	0.1	(0.5)	1.1
Comprehensive income (loss)	161.3	167.3	162.3	111.1
Reportable Legal Entities | Non-Guarantors
Schedule of Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	(7.1)	14.9	(10.4)	12.9
Other comprehensive income (loss):
Net foreign currency translation adjustment	15.8	1.8	15.7	(2.2)
Net change in derivatives	0.0	0.0	0.0	0.0
Net change in pension and other post-retirement benefits	0.2	0.2	0.4	0.6
Total other comprehensive income (loss)	16.0	2.0	16.1	(1.6)
Comprehensive income (loss)	8.9	16.9	5.7	11.3
Eliminations/ Consolidations
Schedule of Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	(155.4)	(182.5)	(153.0)	(123.1)
Other comprehensive income (loss):
Net foreign currency translation adjustment	(15.8)	(1.8)	(15.7)	2.2
Net change in derivatives	1.1	0.2	0.7	(0.8)
Net change in pension and other post-retirement benefits	(0.3)	(0.5)	(0.6)	(0.9)
Total other comprehensive income (loss)	(15.0)	(2.1)	(15.6)	0.5
Comprehensive income (loss)	$ (170.4)	$ (184.6)	$ (168.6)	$ (122.6)