CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common stock and additional paid-in capital	Retained earnings	Retained earnings Cumulative effect of change in accounting principle	Accumulated other comprehensive income/(loss)	Accumulated other comprehensive income/(loss) Cumulative effect of change in accounting principle
Beginning balances at Sep. 28, 2019	$ 90,488	$ 45,174	$ 45,898	$ (136)	$ (584)	$ 136
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued		430
Common stock withheld related to net share settlement of equity awards		(2,123)	(1,320)
Share-based compensation		5,215
Net income	44,738		44,738
Dividends and dividend equivalents declared			(10,528)
Common stock repurchased			(54,516)
Other comprehensive income/(loss)	(102)				(102)
Ending balances at Jun. 27, 2020	$ 72,282	48,696	24,136		(550)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends and dividend equivalents declared per share or RSU (in dollars per share or RSU)	$ 0.59
Beginning balances at Mar. 28, 2020	$ 78,425	48,032	33,182	0	(2,789)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued		0
Common stock withheld related to net share settlement of equity awards		(1,071)	(688)
Share-based compensation		1,735
Net income	11,253		11,253
Dividends and dividend equivalents declared			(3,611)
Common stock repurchased			(16,000)
Other comprehensive income/(loss)	2,239				2,239
Ending balances at Jun. 27, 2020	$ 72,282	48,696	24,136		(550)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends and dividend equivalents declared per share or RSU (in dollars per share or RSU)	$ 0.205
Beginning balances at Sep. 26, 2020	$ 65,339	50,779	14,966	0	(406)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued		561
Common stock withheld related to net share settlement of equity awards		(2,460)	(3,606)
Share-based compensation		6,109
Net income	74,129		74,129
Dividends and dividend equivalents declared			(10,755)
Common stock repurchased	(65,500)		(65,501)
Other comprehensive income/(loss)	464				464
Ending balances at Jun. 26, 2021	$ 64,280	54,989	9,233		58
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends and dividend equivalents declared per share or RSU (in dollars per share or RSU)	$ 0.63
Beginning balances at Mar. 27, 2021	$ 69,178	54,203	15,261	$ 0	(286)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock issued		0
Common stock withheld related to net share settlement of equity awards		(1,224)	(1,559)
Share-based compensation		2,010
Net income	21,744		21,744
Dividends and dividend equivalents declared			(3,713)
Common stock repurchased			(22,500)
Other comprehensive income/(loss)	344				344
Ending balances at Jun. 26, 2021	$ 64,280	$ 54,989	$ 9,233		$ 58
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Dividends and dividend equivalents declared per share or RSU (in dollars per share or RSU)	$ 0.22