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 Sep. 30, 2016	$ 168	$ (1,624)	$ 1,801	$ 8,682	$ (542)	$ 8,485
Balance (in shares) at Sep. 30, 2016	383	(28)
Increase (Decrease) in Equity:
Adoption of ASU No. 2016-09 | ASU 2016-09				165		165
Net income				1,249		1,249
Other comprehensive income (loss)					36	36
Share-based compensation expense			73			73
Dividends approved			(566)			(566)
Exercise of share options		$ 86				86
Exercise of share options (in shares)		3
Restricted share award vestings and other activity		$ 155	(156)			(1)
Restricted share award vestings and other activity (in shares)		1
Repurchase of common shares		$ (386)				$ (386)
Repurchase of common shares (in shares)		(5)				(5)
Cancellation of treasury shares	$ (11)	$ 1,512	(1,152)	(349)
Cancellation of treasury shares (in shares)	(26)	26
Balance at Jun. 30, 2017	$ 157	$ (257)		9,747	(506)	$ 9,141
Balance (in shares) at Jun. 30, 2017	357	(3)
Balance at Sep. 29, 2017	$ 157	$ (421)		10,175	(160)	9,751
Balance (in shares) at Sep. 29, 2017	357	(5)
Increase (Decrease) in Equity:
Adoption of ASU No. 2018-02 | ASU 2018-02				38	(38)
Net income				904		904
Other comprehensive income (loss)					(101)	(101)
Share-based compensation expense			74			74
Dividends approved				(613)		(613)
Exercise of share options		$ 96				96
Exercise of share options (in shares)		2
Restricted share award vestings and other activity		$ 139	$ (74)	(72)		(7)
Repurchase of common shares		$ (612)				$ (612)
Repurchase of common shares (in shares)		(6)				(6)
Balance at Jun. 29, 2018	$ 157	$ (798)		$ 10,432	$ (299)	$ 9,492
Balance (in shares) at Jun. 29, 2018	357	(9)