Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	Total Shareholders’ Equity	Ordinary Shares	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance (shares) at Apr. 27, 2018			1,354,000,000
Beginning balance at Apr. 27, 2018	$ 50,822	$ 50,720	$ 0	$ 28,127	$ 24,379	$ (1,786)	$ 102
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,077	1,075			1,075		2
Other comprehensive income (loss)	(584)	(584)				(584)
Dividends to shareholders	(677)	(677)			(677)
Issuance of shares under stock purchase and award plans (shares)			7,000,000
Issuance of shares under stock purchase and award plans	446	446		446
Repurchase of ordinary shares (shares)			(9,000,000)
Repurchase of ordinary shares	(820)	(820)		(820)
Stock-based compensation	64	64		64
Changes to noncontrolling ownership interests	1						1
Ending balance (shares) at Jul. 27, 2018			1,352,000,000
Ending balance at Jul. 27, 2018	50,329	50,224	$ 0	27,817	24,730	(2,323)	105
Beginning balance (shares) at Apr. 27, 2018			1,354,000,000
Beginning balance at Apr. 27, 2018	50,822	50,720	$ 0	28,127	24,379	(1,786)	102
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,197
Other comprehensive income (loss)	(876)					(873)
Ending balance (shares) at Oct. 26, 2018			1,346,000,000
Ending balance at Oct. 26, 2018	49,714	49,607	$ 0	27,048	25,171	(2,612)	107
Beginning balance (shares) at Jul. 27, 2018			1,352,000,000
Beginning balance at Jul. 27, 2018	50,329	50,224	$ 0	27,817	24,730	(2,323)	105
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,120	1,115			1,115		5
Other comprehensive income (loss)	(292)	(289)				(289)	(3)
Dividends to shareholders	(674)	(674)			(674)
Issuance of shares under stock purchase and award plans (shares)			7,000,000
Issuance of shares under stock purchase and award plans	298	298		298
Repurchase of ordinary shares (shares)			(13,000,000)
Repurchase of ordinary shares	(1,171)	(1,171)		(1,171)
Stock-based compensation	104	104		104
Ending balance (shares) at Oct. 26, 2018			1,346,000,000
Ending balance at Oct. 26, 2018	$ 49,714	49,607	$ 0	27,048	25,171	(2,612)	107
Beginning balance (shares) at Apr. 26, 2019	1,340,697,595		1,341,000,000
Beginning balance at Apr. 26, 2019	$ 50,212	50,091	$ 0	26,532	26,270	(2,711)	121
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	877	864			864		13
Other comprehensive income (loss)	227	227				227
Dividends to shareholders	(724)	(724)			(724)
Issuance of shares under stock purchase and award plans (shares)			3,000,000
Issuance of shares under stock purchase and award plans	205	205		205
Repurchase of ordinary shares (shares)			(3,000,000)
Repurchase of ordinary shares	(328)	(328)		(328)
Stock-based compensation	61	61		61
Ending balance (shares) at Jul. 26, 2019			1,341,000,000
Ending balance at Jul. 26, 2019	$ 50,497	50,363	$ 0	26,470	26,377	(2,484)	134
Beginning balance (shares) at Apr. 26, 2019	1,340,697,595		1,341,000,000
Beginning balance at Apr. 26, 2019	$ 50,212	50,091	$ 0	26,532	26,270	(2,711)	121
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	2,248
Other comprehensive income (loss)	$ 100					100
Ending balance (shares) at Oct. 25, 2019	1,340,375,745		1,340,000,000
Ending balance at Oct. 25, 2019	$ 50,719	50,578	$ 0	26,171	27,018	(2,611)	141
Beginning balance (shares) at Jul. 26, 2019			1,341,000,000
Beginning balance at Jul. 26, 2019	50,497	50,363	$ 0	26,470	26,377	(2,484)	134
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,371	1,364			1,364		7
Other comprehensive income (loss)	(127)	(127)				(127)
Dividends to shareholders	(723)	(723)			(723)
Issuance of shares under stock purchase and award plans (shares)			4,000,000
Issuance of shares under stock purchase and award plans	145	145		145
Repurchase of ordinary shares (shares)			(5,000,000)
Repurchase of ordinary shares	(552)	(552)		(552)
Stock-based compensation	$ 108	108		108
Ending balance (shares) at Oct. 25, 2019	1,340,375,745		1,340,000,000
Ending balance at Oct. 25, 2019	$ 50,719	$ 50,578	$ 0	$ 26,171	$ 27,018	$ (2,611)	$ 141