Discontinued Operations, Equity-Method Investment and Collaborative Arrangement - Schedule of Equity-Method Investment (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Oct. 03, 2021	Jun. 30, 2021	Sep. 27, 2020	Jun. 30, 2020	Oct. 03, 2021	Jun. 30, 2021	Sep. 27, 2020	Jun. 30, 2020
Schedule of Equity Method Investments [Line Items]
Income from continuing operations	$ 8,167		$ 917		$ 18,610		$ 6,004
Net income	8,159		1,477		18,633		8,338
Income attributable to shareholders	$ 8,146		$ 1,469		$ 18,586		$ 8,313
Consumer Healthcare JV [Member]
Schedule of Equity Method Investments [Line Items]
Net sales		$ 3,152		$ 2,927		$ 9,428		$ 9,618
Cost of sales		(1,180)		(1,061)		(3,536)		(4,266)
Gross profit		1,972		1,866		5,892		5,352
Income from continuing operations		348		524		1,064		995
Net income		348		524		1,064		995
Income attributable to shareholders		$ 330		$ 518		$ 1,012		$ 959