Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Oct. 30, 2015	Oct. 24, 2014	Oct. 30, 2015	Oct. 24, 2014
Income Statement [Abstract]
Net sales	$ 7,058	$ 4,366	$ 14,332	$ 8,639
Costs and expenses:
Cost of products sold	2,182	1,142	4,638	2,247
Research and development expense	545	374	1,103	739
Selling, general, and administrative expense	2,343	1,507	4,792	3,013
Special charges	0	100	0	100
Restructuring charges, net	73	0	140	30
Certain litigation charges	26	0	26	0
Acquisition-related items	49	61	120	102
Amortization of intangible assets	483	89	964	176
Other expense, net	57	63	118	114
Operating profit	1,300	1,030	2,431	2,118
Interest income	(107)	(86)	(222)	(178)
Interest expense	324	94	630	191
Interest expense, net	217	8	408	13
Income from operations before income taxes	1,083	1,022	2,023	2,105
Provision for income taxes	563	194	683	406
Net income	$ 520	$ 828	$ 1,340	$ 1,699
Basic earnings per share (usd per share)	$ 0.37	$ 0.84	$ 0.95	$ 1.72
Diluted earnings per share (usd per share)	$ 0.36	$ 0.83	$ 0.94	$ 1.70
Basic weighted average shares outstanding (shares)	1,412.9	981.9	1,415.6	987.5
Diluted weighted average shares outstanding (shares)	1,428.8	993.0	1,432.7	999.4
Cash dividends declared per ordinary share (usd per share)	$ 0.380	$ 0.305	$ 0.760	$ 0.610