Goodwill and Other Intangible Assets (Details 1) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011
Other intangible assets
Amortized intangible assets, carrying amount	$ 328.9	$ 338.4
Amortized intangible assets, accumulated amortization	159.8	172.6
Amortized intangible assets, net	169.1	165.8
Computer software products amortization expense	31.4	34.7	34.8
Intangible assets not subject to amortization	43.7	43.7
Total other intangible assets, carrying amount	372.6	382.1
Total other intangible assets, net	212.8	209.5
Goodwill and Other Intangible Assets (Textuals) [Abstract]
Estimated amortization expense in 2014	31.5
Estimated amortization expense in 2015	34.6
Estimated amortization expense in 2016	31.7
Estimated amortization expense in 2017	28.4
Estimated amortization expense in 2018	17.1
Computer software products [Member]
Other intangible assets
Amortized intangible assets, carrying amount	146.9	123.4
Amortized intangible assets, accumulated amortization	73.1	61.2
Amortized intangible assets, net	73.8	62.2
Computer software products amortization expense	13.1	15.9	16.8
Customer relationships [Member]
Other intangible assets
Amortized intangible assets, carrying amount	77.4	72.6
Amortized intangible assets, accumulated amortization	37.1	30.7
Amortized intangible assets, net	40.3	41.9
Technology-Based Intangible Assets [Member]
Other intangible assets
Amortized intangible assets, carrying amount	66.1	88.9
Amortized intangible assets, accumulated amortization	30.9	50.9
Amortized intangible assets, net	35.2	38.0
Trademarks [Member]
Other intangible assets
Amortized intangible assets, carrying amount	26.4	32.1
Amortized intangible assets, accumulated amortization	10.7	12.9
Amortized intangible assets, net	15.7	19.2
Other [Member]
Other intangible assets
Amortized intangible assets, carrying amount	12.1	21.4
Amortized intangible assets, accumulated amortization	8.0	16.9
Amortized intangible assets, net	$ 4.1	$ 4.5