CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions	Common Shares	Treasury Shares	Contributed Surplus	Accumulated Earnings	Accumulated Other Comprehensive Loss	Total
Balance at at Sep. 27, 2019	$ 154	$ (1,337)		$ 12,256	$ (503)	$ 10,570
Balance (in shares) at at Sep. 27, 2019	351	(16)
Increase (Decrease) in Equity:
Net income				26		26
Other comprehensive income					89	89
Share-based compensation expense			$ 22			22
Exercise of share options		$ 14				14
Restricted share award vestings and other activity		$ 77	(22)	(76)		(21)
Restricted share award vestings and other activity (in shares)		1
Repurchase of common shares		$ (143)				$ (143)
Repurchase of common shares (in shares)		(2)				(2)
Balance at at Dec. 27, 2019	$ 154	$ (1,389)		12,206	(414)	$ 10,557
Balance (in shares) at at Dec. 27, 2019	351	(17)
Balance at at Sep. 25, 2020	$ 149	$ (669)		10,348	(445)	9,383
Balance (in shares) at at Sep. 25, 2020	339	(8)
Increase (Decrease) in Equity:
Net income				381		381
Other comprehensive income					140	140
Share-based compensation expense			19			19
Exercise of share options		$ 75				75
Exercise of share options (in shares)		1
Restricted share award vestings and other activity		$ 66	$ (19)	(57)		(10)
Repurchase of common shares		$ (127)				$ (127)
Repurchase of common shares (in shares)		(1)				(1)
Balance at at Dec. 25, 2020	$ 149	$ (655)		$ 10,672	$ (305)	$ 9,861
Balance (in shares) at at Dec. 25, 2020	339	(8)