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Guarantor Financial Information , Additional Information (Details) $ in Millions	12 Months Ended
	Apr. 28, 2017 USD ($)	Apr. 29, 2016 USD ($)	Apr. 24, 2015 USD ($)	Mar. 31, 2017 tranche	Apr. 25, 2014 USD ($)
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	$ 0	$ 0	$ 0
Statement of Financial Position [Abstract]
Investment in subsidiaries	0	0
Total equity	50,416	52,063	53,230		$ 19,443
Shareholders’ equity	50,294	52,063
Intercompany payable	0	0
Intercompany receivable	0	0
Subsidiary Issuer | Medtronic Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	(2,484)	(2,447)	(5,500)
Statement of Financial Position [Abstract]
Investment in subsidiaries	71,931	68,903
Total equity	30,089	29,019
Shareholders’ equity	30,089
Intercompany payable	12,669	151,687
Intercompany receivable	0	141,368
Subsidiary Issuer | CIFSA Senior Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	(2,329)	(2,043)	1,085
Statement of Financial Position [Abstract]
Investment in subsidiaries	31,033	36,476
Total equity	29,343	26,842
Shareholders’ equity	29,343
Intercompany payable	0	0
Intercompany receivable	0	0
Medtronic plc | Medtronic Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	(4,163)	(3,676)	(2,790)
Statement of Financial Position [Abstract]
Investment in subsidiaries	55,833	52,608
Total equity	50,294	52,063
Shareholders’ equity	50,294
Intercompany payable	12	0
Intercompany receivable	63	403
Medtronic plc | CIFSA Senior Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	(4,163)	(3,676)	(2,790)
Statement of Financial Position [Abstract]
Investment in subsidiaries	55,833	52,608
Total equity	50,294	52,063
Shareholders’ equity	50,294
Intercompany payable	12	0
Intercompany receivable	63	403
Subsidiary Guarantors | Medtronic Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	(3,576)	(2,980)	(2,620)
Statement of Financial Position [Abstract]
Investment in subsidiaries	52,618	49,698
Total equity	48,830	45,604
Shareholders’ equity	48,830
Intercompany payable	0	0
Intercompany receivable	0	0
Subsidiary Guarantors | CIFSA Senior Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	(3,575)	(2,961)	(2,667)
Statement of Financial Position [Abstract]
Investment in subsidiaries	51,294	48,375
Total equity	48,830	45,604
Shareholders’ equity	48,830
Intercompany payable	0	0
Intercompany receivable	60	61
Subsidiary Non-guarantors | Medtronic Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	0	0	0
Statement of Financial Position [Abstract]
Investment in subsidiaries	0	0
Total equity	101,763	96,786
Shareholders’ equity	101,641
Intercompany payable	0	152,362
Intercompany receivable	12,618	162,278
Subsidiary Non-guarantors | CIFSA Senior Notes
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries	0	0	$ 0
Statement of Financial Position [Abstract]
Investment in subsidiaries	0	0
Total equity	60,109	65,013
Shareholders’ equity	59,987
Intercompany payable	123	464
Intercompany receivable	$ 12	0
Error correction, equity in net (income) loss of subsidiaries | Subsidiary Issuer | Medtronic Notes | Restatement Adjustment
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries		(7,100)
Error correction, equity in net (income) loss of subsidiaries | Subsidiary Issuer | CIFSA Senior Notes | Restatement Adjustment
Income Statement [Abstract]
Equity in net (income) loss of subsidiaries		7,100
Error correction, investment in subsidiaries | Subsidiary Issuer | Medtronic Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Investment in subsidiaries		5,100
Total equity		5,100
Error correction, investment in subsidiaries | Subsidiary Issuer | CIFSA Senior Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Investment in subsidiaries		(5,100)
Total equity		(5,100)
Error correction, intercompany balances | Subsidiary Issuer | Medtronic Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Total equity		(20,500)
Intercompany receivable		(20,500)
Error correction, intercompany balances | Medtronic plc | Medtronic Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Investment in subsidiaries		(20,500)
Intercompany payable		(20,500)
Error correction, intercompany balances | Medtronic plc | CIFSA Senior Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Investment in subsidiaries		(20,500)
Intercompany payable		(20,500)
Error correction, intercompany balances | Subsidiary Guarantors | Medtronic Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Investment in subsidiaries		(20,500)
Total equity		(20,500)
Error correction, intercompany balances | Subsidiary Guarantors | CIFSA Senior Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Investment in subsidiaries		(20,500)
Total equity		(20,500)
Error correction, intercompany balances | Subsidiary Non-guarantors | Medtronic Notes | Restatement Adjustment
Statement of Financial Position [Abstract]
Total equity		(20,500)
Intercompany receivable		$ (20,500)
Senior notes | 2017 Senior Notes
Condensed Financial Statements, Captions [Line Items]
Number of tranches | tranche				2

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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