Consolidated Statements of Equity - USD ($) $ in Millions	Total	Total Shareholders’ Equity	Ordinary Shares	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Noncontrolling Interests
Beginning balance (in shares) at Apr. 29, 2016			1,399,000,000
Beginning balance at Apr. 29, 2016	$ 51,977	$ 51,977	$ 0	$ 32,227	$ 21,618	$ (1,868)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,024	4,028			4,028		(4)
Other comprehensive (loss) income	(744)	(745)				(745)	1
Dividends to shareholders	(2,376)	(2,376)			(2,376)
Issuance of shares under stock purchase and award plans (in shares)			13,000,000
Issuance of shares under stock purchase and award plans	428	428		428
Repurchase of ordinary shares (in shares)			(43,000,000)
Repurchase of ordinary shares	(3,544)	(3,544)		(3,544)
Tax benefit from exercise of stock-based awards	92	92		92
Stock-based compensation	348	348		348
Changes to noncontrolling ownership interests	125						125
Ending balance (in shares) at Apr. 28, 2017			1,369,000,000
Ending balance at Apr. 28, 2017	50,330	50,208	$ 0	29,551	23,270	(2,613)	122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,095	3,104			3,104		(9)
Other comprehensive (loss) income	1,030	1,030				1,030
Dividends to shareholders	(2,494)	(2,494)			(2,494)
Issuance of shares under stock purchase and award plans (in shares)			10,000,000
Issuance of shares under stock purchase and award plans	329	329		329
Repurchase of ordinary shares (in shares)			(25,000,000)
Repurchase of ordinary shares	(2,097)	(2,097)		(2,097)
Stock-based compensation	344	344		344
Changes to noncontrolling ownership interests	$ (11)						(11)
Ending balance (in shares) at Apr. 27, 2018	1,354,218,154		1,354,000,000
Ending 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 (loss)	4,650	4,631			4,631		19
Other comprehensive (loss) income	(975)	(972)				(972)	(3)
Dividends to shareholders	(2,693)	(2,693)			(2,693)
Issuance of shares under stock purchase and award plans (in shares)			18,000,000
Issuance of shares under stock purchase and award plans	923	923		923
Repurchase of ordinary shares (in shares)			(31,000,000)
Repurchase of ordinary shares	(2,808)	(2,808)		(2,808)
Stock-based compensation	290	290		290
Changes to noncontrolling ownership interests	$ 3						3
Ending balance (in shares) at Apr. 26, 2019	1,340,697,595		1,341,000,000
Ending balance at Apr. 26, 2019	$ 50,212	$ 50,091	$ 0	$ 26,532	$ 26,270	$ (2,711)	$ 121