Other Intangible Assets and Goodwill (Changes In Carrying Amount Of Goodwill By Reportable Operating Segment) (Details) - USD ($)	12 Months Ended
	Sep. 27, 2020	Sep. 29, 2019	Sep. 30, 2018
Goodwill [Line Items]
Goodwill, beginning balance	$ 3,490,800,000	$ 3,541,600,000
Acquisition/(divestiture)	0	(5,500,000)
Impairment	0	(10,500,000)	$ (37,600,000)
Other	106,400,000	(34,800,000)
Goodwill, ending balance	3,597,200,000	3,490,800,000	3,541,600,000
Americas [Member]
Goodwill [Line Items]
Goodwill, beginning balance	496,700,000	497,400,000
Acquisition/(divestiture)	0	0
Impairment	0	0
Other	(200,000)	(700,000)
Goodwill, ending balance	496,500,000	496,700,000	497,400,000
International [Member]
Goodwill [Line Items]
Goodwill, beginning balance	2,958,400,000	3,003,200,000
Acquisition/(divestiture)	0	(5,500,000)
Impairment	0	(5,300,000)
Other	106,600,000	(34,000,000.0)
Goodwill, ending balance	3,065,000,000.0	2,958,400,000	3,003,200,000
Channel Development [Member]
Goodwill [Line Items]
Goodwill, beginning balance	34,700,000	34,700,000
Acquisition/(divestiture)	0	0
Impairment	0	0
Other	0	0
Goodwill, ending balance	34,700,000	34,700,000	34,700,000
Corporate and Other [Member]
Goodwill [Line Items]
Goodwill, beginning balance	1,000,000.0	6,300,000
Acquisition/(divestiture)	0	0
Impairment	0	(5,200,000)
Other	0	(100,000)
Goodwill, ending balance	$ 1,000,000.0	$ 1,000,000.0	$ 6,300,000