Earnings Per Share - Schedule of Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jan. 24, 2020	Jan. 25, 2019	Jan. 24, 2020	Jan. 25, 2019
Numerator:
Net income attributable to ordinary shareholders	$ 1,915	$ 1,269	$ 4,143	$ 3,459
Denominator:
Basic - weighted average shares outstanding (shares)	1,340.5	1,342.8	1,340.7	1,348.1
Effect of dilutive securities:
Employee stock options (shares)	8.4	6.9	7.8	7.9
Employee restricted stock units (shares)	2.6	3.0	2.9	3.2
Other (shares)	0.0	0.0	0.2	0.3
Diluted - weighted average shares outstanding (shares)	1,351.5	1,352.7	1,351.6	1,359.5
Basic earnings per share (usd per share)	$ 1.43	$ 0.95	$ 3.09	$ 2.57
Diluted earnings per share (usd per share)	$ 1.42	$ 0.94	$ 3.07	$ 2.54