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	3,468
Other comprehensive income (loss)	(722)					(719)
Ending balance (shares) at Jan. 25, 2019			1,341,000,000
Ending balance at Jan. 25, 2019	49,941	49,829	$ 0	26,518	25,769	(2,458)	112
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
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,271	1,269			1,269		2
Other comprehensive income (loss)	154	154				154
Dividends to shareholders	(671)	(671)			(671)
Issuance of shares under stock purchase and award plans (shares)			2,000,000
Issuance of shares under stock purchase and award plans	82	82		82
Repurchase of ordinary shares (shares)			(7,000,000)
Repurchase of ordinary shares	(672)	(672)		(672)
Stock-based compensation	60	60		60
Changes to noncontrolling ownership interests	3						3
Ending balance (shares) at Jan. 25, 2019			1,341,000,000
Ending balance at Jan. 25, 2019	$ 49,941	49,829	$ 0	26,518	25,769	(2,458)	112
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	4,167
Other comprehensive income (loss)	$ 165					165
Ending balance (shares) at Jan. 24, 2020	1,340,786,042		1,341,000,000
Ending balance at Jan. 24, 2020	$ 51,953	51,808	$ 0	26,144	28,210	(2,546)	145
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			1,340,000,000
Ending balance at Oct. 25, 2019	50,719	50,578	$ 0	26,171	27,018	(2,611)	141
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	1,919	1,915			1,915		4
Other comprehensive income (loss)	65	65				65
Dividends to shareholders	(723)	(723)			(723)
Issuance of shares under stock purchase and award plans (shares)			3,000,000
Issuance of shares under stock purchase and award plans	143	143		143
Repurchase of ordinary shares (shares)			(2,000,000)
Repurchase of ordinary shares	(236)	(236)		(236)
Stock-based compensation	$ 66	66		66
Ending balance (shares) at Jan. 24, 2020	1,340,786,042		1,341,000,000
Ending balance at Jan. 24, 2020	$ 51,953	$ 51,808	$ 0	$ 26,144	$ 28,210	$ (2,546)	$ 145