Condensed Statements of Consolidated Income (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Oct. 31, 2013	Oct. 31, 2012	Oct. 31, 2013	Oct. 31, 2012
Income Statement [Abstract]
Net sales	$ 1,559.9	$ 1,628.7	$ 2,910.8	$ 2,998.4
Cost of products sold	1,005.0	1,084.4	1,861.5	1,980.3
Cost of products sold - restructuring and merger and integration	2.3	2.4	3.8	6.4
Gross Profit	552.6	541.9	1,045.5	1,011.7
Selling, distribution, and administrative expenses	270.3	257.2	520.5	489.4
Amortization	24.7	24.2	49.2	48.4
Other restructuring and merger and integration costs	6.9	11.5	12.7	28.7
Other special project costs	0	0	0	6.7
Other operating (income) expense - net	(0.1)	1.4	(1.0)	0.4
Operating Income	250.8	247.6	464.1	438.1
Interest expense - net	(20.5)	(23.9)	(44.3)	(47.5)
Other (expense) income - net	(0.3)	0.5	(0.3)	0.9
Income Before Income Taxes	230.0	224.2	419.5	391.5
Income taxes	76.6	75.4	139.5	131.8
Net Income	$ 153.4	$ 148.8	$ 280.0	$ 259.7
Earnings per common share:
Net Income	$ 1.46	$ 1.36	$ 2.65	$ 2.37
Net Income - Assuming Dilution	$ 1.46	$ 1.36	$ 2.65	$ 2.36
Dividends Declared per Common Share	$ 0.58	$ 0.52	$ 1.16	$ 1.04