Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jan. 29, 2016	Jan. 23, 2015	Jan. 29, 2016	Jan. 23, 2015
Income Statement [Abstract]
Net sales	$ 6,934	$ 4,318	$ 21,266	$ 12,957
Costs and expenses:
Cost of products sold	2,141	1,128	6,779	3,375
Research and development expense	546	373	1,649	1,112
Selling, general, and administrative expense	2,317	1,487	7,109	4,500
Special charges	0	(138)	0	(38)
Restructuring charges, net	19	0	159	30
Certain litigation charges	0	0	26	0
Acquisition-related items	63	80	183	182
Amortization of intangible assets	484	89	1,448	265
Other expense, net	9	24	127	138
Operating profit	1,355	1,275	3,786	3,393
Interest income	(99)	(95)	(321)	(274)
Interest expense	275	176	905	368
Interest expense, net	176	81	584	94
Income from operations before income taxes	1,179	1,194	3,202	3,299
Provision for income taxes	84	217	767	623
Net income	$ 1,095	$ 977	$ 2,435	$ 2,676
Basic earnings per share (usd per share)	$ 0.78	$ 0.99	$ 1.72	$ 2.71
Diluted earnings per share (usd per share)	$ 0.77	$ 0.98	$ 1.70	$ 2.68
Basic weighted average shares outstanding (shares)	1,406.6	983.8	1,412.5	986.6
Diluted weighted average shares outstanding (shares)	1,422.2	995.8	1,429.2	998.5
Cash dividends declared per ordinary share (usd per share)	$ 0.380	$ 0.305	$ 1.14	$ 0.915