Segment Reporting (Reconciliation Of Total Segment Operating Income To Consolidated Earnings Before Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	$ 4,222.1	$ 6,823.0	$ 17,314.9	$ 19,761.6
Depreciation and amortization expenses	361.0	343.1	1,068.3	1,032.5
Income from equity investees	68.4	76.0	210.3	206.1
Operating income/(loss)	(703.9)	1,121.3	1,003.4	2,994.6
Americas Segment [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	2,805.5	4,681.1	12,146.3	13,607.6
Depreciation and amortization expenses	191.3	175.6	571.9	515.5
Income from equity investees	0.0	0.0	0.0	0.0
Operating income/(loss)	(404.9)	1,018.7	1,315.1	2,843.8
International Segment | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	949.6	1,585.3	3,655.3	4,618.6
Depreciation and amortization expenses	128.5	127.7	385.2	385.0
Income from equity investees	17.4	27.2	73.1	75.7
Operating income/(loss)	(86.0)	270.2	174.5	701.8
Channel Development [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	447.3	533.3	1,461.0	1,484.5
Depreciation and amortization expenses	0.3	0.2	0.9	12.6
Income from equity investees	51.0	48.8	137.2	130.4
Operating income/(loss)	124.2	181.9	489.3	506.6
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	19.7	23.3	52.3	50.9
Depreciation and amortization expenses	40.9	39.6	110.3	119.4
Income from equity investees	0.0	0.0	0.0	0.0
Operating income/(loss)	$ (337.2)	$ (349.5)	$ (975.5)	$ (1,057.6)