Shareholders' Equity (Details)	12 Months Ended		23 Months Ended
	Apr. 26, 2019 USD ($) $ / shares shares	Apr. 27, 2018 $ / shares shares	Apr. 26, 2019 USD ($) $ / shares shares	Apr. 26, 2019 € / shares	Mar. 31, 2019 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2015 shares
Class of Stock [Line Items]
Common stock, authorized (in shares)	2,600,000,000	2,600,000,000	2,600,000,000
Common stock, par value (in dollars per share) | $ / shares	$ 0.0001	$ 0.0001	$ 0.0001
Deferred stock, shares authorized (in shares)	40,000		40,000
Deferred stock, par value (in euros per share) | € / shares				€ 1.00
Preferred stock, authorized (in shares)	127,500,000		127,500,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 0.20		$ 0.20
Deferred stock, issued (in shares)	0		0
Deferred stock, outstanding (in shares)	0		0
Preferred stock, issued (in shares)	0		0
Preferred stock, outstanding (in shares)	0		0
June 2015 Share Repurchase Program
Class of Stock [Line Items]
Shares repurchased (in shares)	31,000,000	25,000,000
Average repurchase price (in dollars per share) | $ / shares	$ 91.43	$ 83.71
Common stock authorized to be repurchased (in shares)							80,000,000
Number of shares repurchased to date (in shares)		13,000,000
June 2017 Share Repurchase Program
Class of Stock [Line Items]
Amount authorized for repurchase | $	$ 11,000,000,000.0		$ 11,000,000,000.0			$ 5,000,000,000.0
Incremental amount authorized for repurchase | $					$ 6,000,000,000.0
Amount repurchased | $			3,800,000,000
Amount available for future repurchases | $	$ 7,200,000,000		$ 7,200,000,000
Series A Preferred Shares
Class of Stock [Line Items]
Preferred stock, authorized (in shares)	500,000		500,000
Preferred stock, par value (in dollars per share) | $ / shares	$ 1.00		$ 1.00
Preferred stock, outstanding (in shares)	1,872		1,872