Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jul. 26, 2019	Jul. 27, 2018
Income Statement [Abstract]
Net sales	$ 7,493	$ 7,384
Costs and expenses:
Cost of products sold	2,366	2,204
Research and development expense	587	585
Selling, general, and administrative expense	2,543	2,597
Amortization of intangible assets	440	446
Restructuring charges, net	47	62
Certain litigation charges	47	103
Other operating (income) expense, net	(22)	151
Operating profit (loss)	1,485	1,236
Other non-operating income, net	(101)	(186)
Interest expense	609	242
Income (loss) before income taxes	977	1,180
Income tax provision	100	103
Net income (loss)	877	1,077
Net income attributable to noncontrolling interests	(13)	(2)
Net income (loss) attributable to Medtronic	$ 864	$ 1,075
Basic earnings per share (usd per share)	$ 0.64	$ 0.79
Diluted earnings per share (usd per share)	$ 0.64	$ 0.79
Basic weighted average shares outstanding (shares)	1,340.8	1,352.7
Diluted weighted average shares outstanding (shares)	1,351.9	1,365.4