Consolidated Statement of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Net income	$ 737.0	$ 697.8	$ 464.3
Other comprehensive loss:
Unrecognized pension and postretirement benefit plan liabilities (net of tax benefit of $103.1, $93.2, and $71.8)	(192.4)	(178.7)	(126.6)
Currency translation adjustments	(35.0)	23.4	4.4
Net change in unrealized gains and losses on cash flow hedges (net of tax expense of $3.1, $2.3, and $5.0)	(5.0)	3.9	8.3
Net change in unrealized gains and losses on investment securities, net of tax	0	(0.3)	0.2
Other comprehensive loss	(232.4)	(151.7)	(113.7)
Comprehensive income (loss)	$ 504.6	$ 546.1	$ 350.6