Business Restructuring and Cost Reduction Plans (Carrying Amount of Accrual) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended		3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2013 Plan 2013 [Member]	Sep. 30, 2013 Plan 2013 [Member]	Sep. 30, 2013 Plan 2013 [Member]	Sep. 30, 2012 Plan 2012 [Member]	Dec. 31, 2013 Severance And Other Benefits [Member] Plan 2013 [Member]	Sep. 30, 2013 Severance And Other Benefits [Member] Plan 2013 [Member]	Dec. 31, 2013 Asset Actions [Member] Plan 2013 [Member]	Sep. 30, 2013 Asset Actions [Member] Plan 2013 [Member]	Dec. 31, 2013 Contract Actions [Member] Plan 2013 [Member]	Sep. 30, 2013 Contract Actions [Member] Plan 2013 [Member]
Restructuring Cost and Reserve [Line Items]
Charge		$ 231.6	$ 231.6	$ 327.4		$ 71.9		$ 100.4		$ 59.3
Amount reflected in pension liability			(6.9)			(6.9)		0		0
Noncash expenses			(100.4)			0		(100.4)		0
Cash expenditures	(4.9)		(61.5)		(4.9)	(3.0)	0	0	0	(58.5)
Currency translation adjustment	0.3		0.4		0.3	0.4	0	0	0	0
Accrued Balance	$ 58.6	$ 63.2	$ 63.2		$ 57.8	$ 62.4	$ 0	$ 0	$ 0.8	$ 0.8