Consolidated Statements Of Equity (Parenthetical) (USD $) In Millions, except Per Share data	12 Months Ended
Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2009	Sep. 30, 2008
Consolidated Statements Of Equity [Abstract]
Tax effect on defined benefit plans measurement date change				$ 14.0
Tax effect on translation adjustments	9.9	69.5	(35.3)
Tax effect on net gain (loss) on derivatives	0.2	(5.5)	(1.8)
Tax effect on unrealized holding gain (loss) on available-for-sale securities	(3.3)	12.1	1.4
Tax effect pension and postretirement benefits	(59.2)	(103.0)	(287.7)
Tax effect on derivative adjustments	3.4	7.0	(0.8)
Tax effect on available-for-sale securities	(9.3)	(5.8)
Tax effect on pension and post retirement benefits reclassified	$ 35.1	$ 29.5	$ 9.8
Dividends per share	$ 2.23	$ 1.92	$ 1.79

Aggregate dividends declared during the period for each share of common stock outstanding.

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