Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Oct. 31, 2018	Oct. 31, 2017
Cash flows from operating activities:
Net income	$ 449	$ 417
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization	36	31
Stock-based compensation expense	9	9
Deferred income taxes	4	(10)
Changes in assets and liabilities	(226)	(229)
Cash provided by operating activities	272	218
Cash flows from investing activities:
Additions to property, plant, and equipment	(53)	(64)
Payments for corporate-owned life insurance	(2)	(4)
Computer software expenditures	(2)	(1)
Cash used for investing activities	(57)	(69)
Cash flows from financing activities:
Net change in short-term borrowings	42	21
Net payments related to exercise of stock-based awards	(5)	(7)
Acquisition of treasury stock	(128)	(1)
Dividends paid	(152)	(140)
Cash used for financing activities	(243)	(127)
Effect of exchange rate changes on cash and cash equivalents	(18)	8
Net increase (decrease) in cash and cash equivalents	(46)	30
Cash and cash equivalents, beginning of period	239	$ 182
Cash and cash equivalents, end of period	$ 193