Segment Reporting (Reconciliation Of Total Segment Operating Income To Consolidated Earnings Before Income Taxes) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2023	Jan. 01, 2023
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	$ 9,425.3	$ 8,713.9
Depreciation and amortization expenses	365.3	327.1
Income (Loss) from Equity Method Investments	55.9	57.8
Operating income/(loss)	1,485.4	1,253.1
North America [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	7,120.7	6,551.3
Depreciation and amortization expenses	250.4	216.9
Income (Loss) from Equity Method Investments	0.0	0.0
Operating income/(loss)	1,520.8	1,212.4
International [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	1,846.3	1,680.1
Depreciation and amortization expenses	84.1	81.5
Income (Loss) from Equity Method Investments	0.2	0.5
Operating income/(loss)	241.5	240.4
Channel Development [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	448.0	478.2
Depreciation and amortization expenses	0.0	0.0
Income (Loss) from Equity Method Investments	55.7	57.3
Operating income/(loss)	209.7	226.3
Corporate and Other [Member] | Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total net revenues	10.3	4.3
Depreciation and amortization expenses	30.8	28.7
Income (Loss) from Equity Method Investments	0.0	0.0
Operating income/(loss)	$ (486.6)	$ (426.0)