Segment Reporting (Financial Information For Reportable Operating Segments And All Other Segments) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 27, 2020	Jun. 28, 2020	Mar. 29, 2020	Dec. 29, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 27, 2020	Sep. 29, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Revenues	$ 6,203.1	$ 4,222.1	$ 5,995.7	$ 7,097.1	$ 6,747.0	$ 6,823.0	$ 6,305.9	$ 6,632.7	$ 23,518.0	$ 26,508.6	$ 24,719.5
Depreciation and amortization expenses									1,431.3	1,377.3	1,247.0
Income from equity investees									322.5	298.0	301.2
Operating income/(loss)	558.3	$ (703.9)	$ 487.4	$ 1,219.8	1,083.3	$ 1,121.3	$ 857.7	$ 1,015.7	1,561.7	4,077.9	3,883.3
Assets	29,374.5				19,219.6				29,374.5	19,219.6	24,156.4
Operating Segments [Member] | Americas [Member]
Segment Reporting Information [Line Items]
Revenues									16,379.2	18,259.0	16,748.6
Depreciation and amortization expenses									762.0	696.1	641.0
Income from equity investees									0.0	0.0	0.0
Operating income/(loss)									1,825.3	3,782.8	3,485.2
Assets	10,717.4				4,446.7				10,717.4	4,446.7	4,473.7
Operating Segments [Member] | International [Member]
Segment Reporting Information [Line Items]
Revenues									5,147.6	6,190.7	5,551.2
Depreciation and amortization expenses									518.4	511.5	447.6
Income from equity investees									102.3	102.4	117.4
Operating income/(loss)									354.0	964.7	872.8
Assets	9,449.7				6,724.6				9,449.7	6,724.6	6,361.9
Operating Segments [Member] | Channel Development [Member]
Segment Reporting Information [Line Items]
Revenues									1,925.0	1,992.6	2,297.3
Depreciation and amortization expenses									1.2	13.0	1.3
Income from equity investees									220.2	195.6	183.8
Operating income/(loss)									687.2	697.5	927.1
Assets	165.0				132.2				165.0	132.2	148.2
Operating Segments [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenues									66.2	66.3	122.4
Depreciation and amortization expenses									149.7	156.7	157.1
Income from equity investees									0.0	0.0	0.0
Operating income/(loss)									(1,304.8)	(1,367.1)	(1,401.8)
Assets	$ 9,042.4				$ 7,916.1				$ 9,042.4	$ 7,916.1	$ 13,172.6