Segment Reporting (Reconciliation Of Total Segment Operating Income To Consolidated Earnings Before Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 30, 2025	Mar. 31, 2024	Mar. 30, 2025	Mar. 31, 2024
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	$ 8,761.6	$ 8,563.0	$ 18,159.4	$ 17,988.3
Depreciation and amortization expenses	418.9	371.9	826.2	737.2
Income (Loss) from Equity Method Investments	59.1	68.0	105.5	123.8
Operating income/(loss)	601.0	1,098.9	1,722.8	2,584.3
North America [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	6,472.7	6,380.0	13,544.6	13,500.7
Depreciation and amortization expenses	299.2	257.1	588.1	507.5
Income (Loss) from Equity Method Investments	0.0	0.0	0.0	0.0
Operating income/(loss)	748.3	1,148.3	1,929.6	2,669.1
International [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	1,867.1	1,757.3	3,738.4	3,603.6
Depreciation and amortization expenses	89.0	84.3	178.1	168.3
Income (Loss) from Equity Method Investments	(0.2)	0.2	(0.7)	0.3
Operating income/(loss)	217.0	233.8	454.1	475.3
Channel Development [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	409.0	418.2	845.3	866.2
Depreciation and amortization expenses	0.0	0.0	0.0	0.0
Income (Loss) from Equity Method Investments	59.3	67.8	106.2	123.5
Operating income/(loss)	193.5	216.3	401.6	426.0
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	12.8	7.5	31.1	17.8
Depreciation and amortization expenses	30.7	30.5	60.0	61.4
Income (Loss) from Equity Method Investments	0.0	0.0	0.0	0.0
Operating income/(loss)	$ (557.8)	$ (499.5)	$ (1,062.5)	$ (986.1)