Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Oct. 30, 2020	Oct. 25, 2019	Oct. 30, 2020	Oct. 25, 2019
Income Statement [Abstract]
Net sales	$ 7,647	$ 7,706	$ 14,154	$ 15,199
Costs and expenses:
Cost of products sold	2,705	2,394	5,209	4,760
Research and development expense	639	603	1,260	1,190
Selling, general, and administrative expense	2,600	2,620	5,017	5,163
Amortization of intangible assets	443	441	884	881
Restructuring charges, net	97	27	150	74
Certain litigation charges, net	84	121	(4)	168
Other operating expense, net	149	149	35	127
Operating profit	930	1,351	1,603	2,836
Other non-operating income, net	(65)	(108)	(147)	(209)
Interest expense	470	165	641	774
Income before income taxes	525	1,294	1,109	2,271
Income tax provision (benefit)	31	(77)	124	23
Net income	494	1,371	985	2,248
Net income attributable to noncontrolling interests	(5)	(7)	(9)	(20)
Net income attributable to Medtronic	$ 489	$ 1,364	$ 976	$ 2,228
Basic earnings per share (usd per share)	$ 0.36	$ 1.02	$ 0.73	$ 1.66
Diluted earnings per share (usd per share)	$ 0.36	$ 1.01	$ 0.72	$ 1.65
Basic weighted average shares outstanding (shares)	1,344.4	1,340.8	1,343.1	1,340.8
Diluted weighted average shares outstanding (shares)	1,352.1	1,351.4	1,351.1	1,351.6