Business Segment and Geographic Information (Schedule of Geographic Information) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended										12 Months Ended
	Sep. 30, 2014		Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013		Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2012
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers	$ 2,677.0		$ 2,634.6	$ 2,581.9	$ 2,545.5	$ 2,586.5		$ 2,547.3	$ 2,484.2	$ 2,562.4	$ 10,439.0		$ 10,180.4		$ 9,611.7
Long Lived Assets	9,532.1	[1]				8,974.0	[1]				9,532.1	[1]	8,974.0	[1]	8,240.6	[1]
United States
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers											4,507.6		4,258.4		4,114.5
Long Lived Assets	3,756.0	[1]				3,632.1	[1]				3,756.0	[1]	3,632.1	[1]	3,534.4	[1]
Canada
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers											311.4		275.5		267.6
Long Lived Assets	518.0	[1]				522.3	[1]				518.0	[1]	522.3	[1]	571.3	[1]
Europe [Member]
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers											2,628.0		2,602.1		2,588.5
Long Lived Assets	2,245.4	[1]				2,068.8	[1]				2,245.4	[1]	2,068.8	[1]	1,760.1	[1]
Asia excluding China [Member]
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers											1,389.4		1,320.1		1,349.9
Long Lived Assets	989.9	[1]				962.3	[1]				989.9	[1]	962.3	[1]	948.1	[1]
China
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers											981.0		1,008.3		954.1
Long Lived Assets	1,582.7	[1]				1,281.7	[1]				1,582.7	[1]	1,281.7	[1]	918.5	[1]
Latin America Other [Member]
Revenue from External Customers and Long-Lived Assets [Line Items]
Sales to External Customers											621.6		716.0		337.1
Long Lived Assets	$ 440.1	[1]				$ 506.8	[1]				$ 440.1	[1]	$ 506.8	[1]	$ 508.2	[1]

[1] Long-lived assets include plant and equipment, net.