Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2013
Allowance for Possible Losses and Sales Returns - Accounts Receivable [Member]
Reserves deducted from assets to which they apply:
BALANCE AT BEGINNING OF PERIOD		$ 31.4		$ 30.1		$ 38.5
CHARGED TO COSTS AND EXPENSES		1.8		1.5		2.7
CHARGED TO OTHER ACCOUNTS	[1]	0.1		8.6		(0.1)
DEDUCTIONS NET OF RECOVERIES	[2]	(7.3)		(8.8)		(11.0)
BALANCE AT END OF PERIOD		26.0		31.4		30.1
Allowance for Inventory Valuation [Member]
Reserves deducted from assets to which they apply:
BALANCE AT BEGINNING OF PERIOD		42.9		22.0		22.0
CHARGED TO COSTS AND EXPENSES		0.9		4.0		$ 1.8
CHARGED TO OTHER ACCOUNTS		5.7	[3]	19.8	[3]
DEDUCTIONS NET OF RECOVERIES	[4]	(4.0)		(2.9)		$ (1.8)
BALANCE AT END OF PERIOD		45.5		42.9		22.0
Valuation Allowance Against Deferred Tax Assets [Member]
Reserves deducted from assets to which they apply:
BALANCE AT BEGINNING OF PERIOD		28.3		8.9		8.6
CHARGED TO COSTS AND EXPENSES		4.0		$ 21.3		$ 0.6
CHARGED TO OTHER ACCOUNTS		11.1	[3]
DEDUCTIONS NET OF RECOVERIES	[5]	(2.7)		$ (1.9)		$ (0.3)
BALANCE AT END OF PERIOD		$ 40.7		$ 28.3		$ 8.9

[1] Reduction of gross revenue for uncollectible health care rental reimbursements, cash discounts and other adjustments in determining net revenue. Also includes the effect of acquired businesses, if any.

[2] Generally reflects the write-off of specific receivables against recorded reserves.

[3] Generally reflects the effect of acquired businesses, if any.

[4] Generally reflects the write-off of specific inventory against recorded reserves.

[5] Primarily reflects write-offs of deferred tax assets against the valuation allowance and other movement of the valuation allowance offset by an opposing change in deferred tax assets.