Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jul. 30, 2021	Jul. 31, 2020
Income Statement [Abstract]
Net sales	$ 7,987	$ 6,507
Costs and expenses:
Cost of products sold	2,598	2,505
Research and development expense	750	621
Selling, general, and administrative expense	2,547	2,417
Amortization of intangible assets	436	440
Restructuring charges, net	11	53
Certain litigation charges, net	26	(88)
Other operating expense (income), net	760	(114)
Operating profit	859	673
Other non-operating income, net	(111)	(82)
Interest expense	137	171
Income before income taxes	833	584
Income tax provision	64	93
Net income	769	491
Net income attributable to noncontrolling interests	(6)	(4)
Net income attributable to Medtronic	$ 763	$ 487
Basic earnings per share (usd per share)	$ 0.57	$ 0.36
Diluted earnings per share (usd per share)	$ 0.56	$ 0.36
Basic weighted average shares outstanding (shares)	1,344.5	1,341.9
Diluted weighted average shares outstanding (shares)	1,356.4	1,350.0