Shareholders' Equity (Details) $ / shares in Units, $ in Thousands		12 Months Ended
	Jan. 26, 2015 shares	Apr. 24, 2015 USD ($) $ / shares shares	Apr. 25, 2014 $ / shares shares	Jun. 30, 2015 shares	Apr. 24, 2015 € / shares shares
Class of Stock [Line Items]
Common stock, shares authorized		2,600,000,000	1,600,000,000		2,600,000,000
Common stock, par value (in dollars per share) | $ / shares		$ 0.0001	$ 0.10
Deferred stock, shares authorized		40,000			40,000
Deferred stock, par value (in dollars per share) | € / shares					€ 1.00
Stock issued to advisors (in shares)		624
Preferred stock, shares authorized		128,000,000			128,000,000
Preferred stock, par value (in dollars per share) | $ / shares		$ 0.20
Stock issued during period (in shares)		1,872
Stock issued during period | $		$ 75
Shares repurchased (in shares)		29,800,000	47,800,000
Average repurchase price (per share) | $ / shares		$ 64.53	$ 53.37
Number of common stock authorized to be repurchased (in shares)		80,000,000			80,000,000
Subsequent Event
Class of Stock [Line Items]
Number of common stock authorized to be repurchased (in shares)				80,000,000
June 2013 Share Repurchase Program
Class of Stock [Line Items]
Shares repurchased (in shares)		50,300,000
Shares available for future repurchases (in shares)		29,700,000			29,700,000
New Medtronic ordinary shares
Class of Stock [Line Items]
Number of shares issued for each share of outstanding Medtronic, Inc. common stock	1
Series A Preferred Shares
Class of Stock [Line Items]
Preferred stock, shares authorized		500,000			500,000
Preferred stock, par value (in dollars per share) | $ / shares		$ 1.00
Euro Deferred Shares
Class of Stock [Line Items]
Stock issued during period (in shares)		40,000