Goodwill and Other Intangible Assets (Details 1) - USD ($) $ in Millions	6 Months Ended
	Mar. 31, 2016	Sep. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Total, carrying amount	$ 439.2	$ 440.5
Total, net	218.6	229.5
Finite-lived intangible assets acquired	5.7
Other intangible assets
Amortized intangible assets, carrying amount	395.5	396.8
Amortized intangible assets, accumulated amortization	220.6	211.0
Amortized intangible assets, net	174.9	185.8
Goodwill and Other Intangible Assets (Textual) [Abstract]
Estimated amortization expense in 2016	28.9
Estimated amortization expense in 2017	25.9
Estimated amortization expense in 2018	20.0
Estimated amortization expense in 2019	17.4
Estimated amortization expense in 2020	14.7
Trademarks [Member]
Indefinite-lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	43.7	43.7
Computer software products [Member]
Other intangible assets
Amortized intangible assets, carrying amount	182.4	182.4
Amortized intangible assets, accumulated amortization	97.9	91.9
Amortized intangible assets, net	84.5	90.5
Customer relationships [Member]
Other intangible assets
Amortized intangible assets, carrying amount	83.9	87.2
Amortized intangible assets, accumulated amortization	51.0	50.1
Amortized intangible assets, net	32.9	37.1
Technology [Member]
Other intangible assets
Amortized intangible assets, carrying amount	86.7	83.4
Amortized intangible assets, accumulated amortization	46.3	44.1
Amortized intangible assets, net	40.4	39.3
Trademarks [Member]
Other intangible assets
Amortized intangible assets, carrying amount	31.3	32.3
Amortized intangible assets, accumulated amortization	16.7	16.3
Amortized intangible assets, net	14.6	16.0
Other [Member]
Other intangible assets
Amortized intangible assets, carrying amount	11.2	11.5
Amortized intangible assets, accumulated amortization	8.7	8.6
Amortized intangible assets, net	$ 2.5	$ 2.9