Summary Of Significant Accounting Policies (Schedule Of Major Components Of Property And Related Accumulated Depreciation) (Details) (USD $) In Millions	Sep. 30, 2011	Sep. 30, 2010
Cost	$ 819.6	$ 805.0
Accumulated Depreciation	596.8	561.3
Land And Land Improvements [Member]
Cost	12.2	12.5
Accumulated Depreciation	3.9	3.7
Buildings And Building Equipment [Member]
Cost	115.3	112.8
Accumulated Depreciation	79.0	75.7
Machinery And Equipment [Member]
Cost	269.0	257.1
Accumulated Depreciation	205.3	192.2
Equipment Leased To Others [Member]
Cost	423.1	422.6
Accumulated Depreciation	$ 308.6	$ 289.7