Condensed, Consolidating Statement of Comprehensive Income (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Sep. 30, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Net income (loss)	$ (15.5)	$ 121.7	$ 125.7	$ (65.7)	$ 166.2	$ 161.1	$ 106.5
Net foreign currency translation adjustment					(8.2)	(5.2)	2.3
Net change in derivatives					4.6	5.1	(0.9)
Net change in pension and other post retirement benefits					(4.8)	9.6	(10.7)
Other comprehensive income (loss)					(8.4)	9.5	(9.3)
Comprehensive income (loss)					157.8	170.6	97.2
Parent
Net income (loss)					166.2	161.1	106.5
Net foreign currency translation adjustment					(8.2)	0	0
Net change in derivatives					4.6	7.2	0.1
Net change in pension and other post retirement benefits					(4.8)	0	0
Other comprehensive income (loss)					(8.4)	7.2	0.1
Comprehensive income (loss)					157.8	168.3	106.6
Subsidiary Guarantors
Net income (loss)					181.8	182.6	126.4
Net foreign currency translation adjustment					0	0	0
Net change in derivatives					1.3	(2.1)	(1.0)
Net change in pension and other post retirement benefits					0.7	10.6	(1.2)
Other comprehensive income (loss)					2.0	8.5	(2.2)
Comprehensive income (loss)					183.8	191.1	124.2
Non-Guarantors
Net income (loss)					20.3	(3.0)	(1.6)
Net foreign currency translation adjustment					(8.2)	(5.2)	2.3
Net change in derivatives					0	0	0
Net change in pension and other post retirement benefits					(5.5)	(1.0)	(9.5)
Other comprehensive income (loss)					(13.7)	(6.2)	(7.2)
Comprehensive income (loss)					6.6	(9.2)	(8.8)
Consolidation, Eliminations [Member]
Net income (loss)					(202.1)	(179.6)	(124.8)
Net foreign currency translation adjustment					8.2	0	0
Net change in derivatives					(1.3)	0	0
Net change in pension and other post retirement benefits					4.8	0	0
Other comprehensive income (loss)					11.7	0	0
Comprehensive income (loss)					$ (190.4)	$ (179.6)	$ (124.8)