Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Net income	$ 825.7	$ 729.7	$ 827.6
Other comprehensive income (loss):
Pension and other postretirement benefit plan adjustments (net of tax expense (benefit) of $159.3, ($73.7) and ($106.6))	312.8	(142.7)	(187.7)
Currency translation adjustments	57.2	(42.5)	(199.9)
Net change in unrealized gains and losses on cash flow hedges (net of tax (benefit) expense of ($2.8), ($6.7) and $4.5)	(10.3)	(19.0)	1.0
Net change in unrealized gains and losses on available-for-sale investments	(0.1)	0.0	0.0
Other comprehensive income (loss)	359.6	(204.2)	(386.6)
Comprehensive income	$ 1,185.3	$ 525.5	$ 441.0