Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Cash flows from operating activities:
Net income	$ 408.7	$ 406.1
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	37.7	42.9
Gain on sale of property, plant, and equipment		(1.5)
Stock-based compensation expense	6.5	6.0
Deferred income taxes	36.0	65.5
Changes in assets and liabilities	(147.2)	(119.5)
Cash provided by operating activities	341.7	399.5
Cash flows from investing activities:
Proceeds from sale of property, plant, and equipment		12.1
Additions to property, plant, and equipment	(31.1)	(26.5)
Acquisition of brand names and trademarks	(7.2)
Computer software expenditures	(2.6)	(2.4)
Cash used for investing activities	(40.9)	(16.8)
Cash flows from financing activities:
Net change in short-term borrowings	5.0	(187.3)
Repayment of long-term debt	(2.1)	(2.1)
Proceeds from long-term debt		248.4
Debt issuance costs		(1.8)
Net payments related to exercise of stock-based awards	(7.1)	(6.4)
Excess tax benefits from stock-based awards	7.9	8.6
Acquisition of treasury stock	(219.1)	(118.3)
Dividends paid	(142.0)	(279.5)
Cash used for financing activities	(357.4)	(338.4)
Effect of exchange rate changes on cash and cash equivalents	(15.6)	2.7
Net increase (decrease) in cash and cash equivalents	(72.2)	47.0
Cash and cash equivalents, beginning of period	567.1	231.6
Cash and cash equivalents, end of period	$ 494.9	$ 278.6