Consolidated Statements of Equity - USD ($) $ in Millions	Total	Cumulative effect of change in accounting principle		Total Shareholders’ Equity	Total Shareholders’ Equity Cumulative effect of change in accounting principle		Ordinary Shares	Additional Paid-in Capital	Retained Earnings	Retained Earnings Cumulative effect of change in accounting principle		Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Cumulative effect of change in accounting principle		Noncontrolling Interests
Beginning balance (in shares) at Apr. 28, 2017							1,369,000,000
Beginning balance at Apr. 28, 2017	$ 50,330	$ 296	[1]	$ 50,208	$ 296	[1]	$ 0	$ 29,551	$ 23,270	$ 499	[1]	$ (2,613)	$ (203)	[1]	$ 122
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	3,095			3,104					3,104						(9)
Other comprehensive income (loss)	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)			0											(11)
Ending balance (in shares) at Apr. 27, 2018							1,354,000,000
Ending balance at Apr. 27, 2018	50,822	0	[2]	50,720	0	[2]	$ 0	28,127	24,379	(47)	[2]	(1,786)	47	[2]	102
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,650			4,631					4,631						19
Other comprehensive income (loss)	(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			0											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	$ (33)	[3]	50,091	$ (33)	[3]	$ 0	26,532	26,270	$ (33)	[3]	(2,711)	$ 0	[3]	121
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	4,806			4,789					4,789						17
Other comprehensive income (loss)	(851)			(849)								(849)			(2)
Dividends to shareholders	(2,894)			(2,894)					(2,894)
Issuance of shares under stock purchase and award plans (in shares)							12,000,000
Issuance of shares under stock purchase and award plans	564			564				564
Repurchase of ordinary shares (in shares)							(12,000,000)
Repurchase of ordinary shares	(1,228)			(1,228)				(1,228)
Stock-based compensation	297			297				297
Changes to noncontrolling ownership interests	$ (1)			0											(1)
Ending balance (in shares) at Apr. 24, 2020	1,341,074,724						1,341,000,000
Ending balance at Apr. 24, 2020	$ 50,872			$ 50,737			$ 0	$ 26,165	$ 28,132			$ (3,560)			$ 135

[1] The cumulative effect of change in accounting principle in fiscal year 2018 resulted from the adoption of accounting guidance that requires the tax effect of intra-entity transactions, other than sales of inventory, to be recognized when the transaction occurs, and accounting guidance which permitted reclassification of stranded tax effects resulting from the enactment of comprehensive U.S. tax legislation from accumulated other comprehensive loss to retained earnings.

[2] The cumulative effect of change in accounting principle in fiscal year 2019 resulted from the adoption of accounting guidance that requires equity investments (except those accounted for under the equity method of accounting or those that result in consolidation of the investee) to be measured at fair value with changes in fair value recognized in net income. As a result of the adoption, the Company reclassified $47 million from accumulated other comprehensive loss to the opening balance of retained earnings as of April 28, 2018.

[3] See Note 1 to the consolidated financial statements for discussion regarding the adoption of accounting standards during fiscal year 2020.