Retirement Benefit (Details Textuals) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2013 Pension Benefits [Member]	Sep. 30, 2012 Pension Benefits [Member]	Sep. 30, 2011 Pension Benefits [Member]	Sep. 30, 2014 Non-U.S. Pension Benefit Plans [Member]	Sep. 30, 2013 Other Postretirement Benefits [Member]	Sep. 30, 2012 Other Postretirement Benefits [Member]	Sep. 30, 2011 Other Postretirement Benefits [Member]	Sep. 30, 2013 U.S. Other Postretirement Benefit Plans [Member]	Sep. 30, 2014 Non-U.S. Other Postretirement Benefit Plans [Member]	Sep. 30, 2013 Non-U.S. Other Postretirement Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Company contribution range	3% to 7%
Voluntary contributions to U.S. qualified pension plan		$ 300.0	$ 150.0
Recognized prior service credits	13.2			2.5	2.3	2.2		10.7	10.6	10.6
Recognized prior service credits, net of tax	8.4
Recognized net actuarial losses	149.0			144.6	94.7	63.7		4.4	2.4	6.4
Recognized net actuarial losses, net of tax	95.7
Accumulated benefit obligation for pension plans	3,563.2	3,865.3
Decrease in gross healthcare trend rate											5.50%		4.50%
Year of decrease in gross healthcare trend rate											2017		2017
Estimated future payments, during next fiscal year							41.1					15.1
Expense related to defined contribution savings plans	40.9	38.2	31.2
Defined Benefit Plan, Amounts that will be Amortized from Accumulated Other Comprehensive Income (Loss) in Next Fiscal Year
Prior service credits	12.9
Prior service credits, net of tax	8.2
Net actuarial losses	102.8
Net actuarial losses, net of tax	$ 66.5