Goodwill and Other Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013
Other intangible assets
Amortized intangible assets, carrying amount	$ 365.6	$ 328.9
Amortized intangible assets, accumulated amortization	168.5	159.8
Amortized intangible assets, net	197.1	169.1
Intangible assets not subject to amortization	43.7	43.7
Total other intangible assets, carrying amount	409.3	372.6
Total other intangible assets, net	240.8	212.8
Goodwill and Other Intangible Assets (Textual) [Abstract]
Estimated amortization expense in 2014	30.5
Estimated amortization expense in 2015	31.2
Estimated amortization expense in 2016	29.5
Estimated amortization expense in 2017	26.2
Estimated amortization expense in 2018	18.4
Computer software products [Member]
Other intangible assets
Amortized intangible assets, carrying amount	150.1	146.9
Amortized intangible assets, accumulated amortization	76.2	73.1
Amortized intangible assets, net	73.9	73.8
Customer relationships [Member]
Other intangible assets
Amortized intangible assets, carrying amount	91.8	77.4
Amortized intangible assets, accumulated amortization	39.6	37.1
Amortized intangible assets, net	52.2	40.3
Technology [Member]
Other intangible assets
Amortized intangible assets, carrying amount	73.9	66.1
Amortized intangible assets, accumulated amortization	32.7	30.9
Amortized intangible assets, net	41.2	35.2
Trademarks [Member]
Other intangible assets
Amortized intangible assets, carrying amount	33.1	26.4
Amortized intangible assets, accumulated amortization	11.6	10.7
Amortized intangible assets, net	21.5	15.7
Other [Member]
Other intangible assets
Amortized intangible assets, carrying amount	16.7	12.1
Amortized intangible assets, accumulated amortization	8.4	8.0
Amortized intangible assets, net	$ 8.3	$ 4.1