Leases (Narratives) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Leases [Abstract]
Capital Leases	$ 13.6	$ 20.3
Capital lease accumulated depreciation	8.8	12.0
Operating leases, rent expense	91.1	90.5	85.3
Future capital lease payment present value	2.5	7.5
Current portion of future capital lease payment present value	0.9	2.2
Long term liability of future capital lease payment present value	1.6	5.3
Lease payments collected	$ 103.0	$ 84.6	$ 68.0