Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
Jan. 31, 2015	Jan. 31, 2014
Cash flows from operating activities:
Net income	$ 543us-gaap_NetIncomeLoss	$ 526us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	38us-gaap_DepreciationAndAmortization	36us-gaap_DepreciationAndAmortization
Stock-based compensation expense	9us-gaap_ShareBasedCompensation	9us-gaap_ShareBasedCompensation
Deferred income taxes	(8)us-gaap_DeferredIncomeTaxExpenseBenefit	(22)us-gaap_DeferredIncomeTaxExpenseBenefit
Changes in assets and liabilities	(207)	(159)
Cash provided by operating activities	375	390
Cash flows from investing activities:
Additions to property, plant, and equipment	(92)	(87)
Acquisition of brand names and trademarks	(3)	0
Computer software expenditures	(1)us-gaap_PaymentsForSoftware	(2)us-gaap_PaymentsForSoftware
Cash used for investing activities	(96)	(89)
Cash flows from financing activities:
Net increase in short-term borrowings	1	8
Repayment of long-term debt	0us-gaap_RepaymentsOfLongTermDebt	(2)us-gaap_RepaymentsOfLongTermDebt
Net payments related to exercise of stock-based awards	(7)	(9)
Excess tax benefits from stock-based awards	18	9
Acquisition of treasury stock	(271)	(49)
Dividends paid	(190)us-gaap_PaymentsOfDividendsCommonStock	(171)us-gaap_PaymentsOfDividendsCommonStock
Cash used for financing activities	(449)	(214)
Effect of exchange rate changes on cash and cash equivalents	(17)	(4)
Net increase (decrease) in cash and cash equivalents	(187)	83
Cash and cash equivalents, beginning of period	437	204
Cash and cash equivalents, end of period	$ 250

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