Derivative Financial Instruments and Hedging Activities (Details 3) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Pre-tax gains (losses) on derivative instruments
Derivative, Gain (Loss) on Derivative, Net	$ (4.7)	$ 5.4	$ (6.1)	$ 8.8
Designated as Hedging Instrument [Member] \| Foreign exchange contracts \| Miscellaneous, net
Pre-tax gains (losses) on derivative instruments
Derivative, Gain (Loss) on Derivative, Net	(0.1)	0.0	(0.1)	0.0
Not designated as hedging instruments \| Foreign exchange contracts \| Miscellaneous, net
Pre-tax gains (losses) on derivative instruments
Not designated as hedges	(4.5)	5.4	(5.8)	8.8
Not designated as hedging instruments \| Interest rate contracts \| Miscellaneous, net
Pre-tax gains (losses) on derivative instruments
Not designated as hedges	$ (0.1)	$ 0.0	$ (0.2)	$ 0.0

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5618551-113959

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (a),(c),(d),(e)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624171-113959

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