Supplemental Income Statement Information (Store Operating Expenses) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2024	Dec. 31, 2023
Store Operating Expenses [Line Items]
Wages and benefits	$ 2,389.1	$ 2,209.3
Occupancy costs	802.1	745.7
Other store operating expenses	1,011.8	896.5
Store operating expenses	$ 4,203.0	$ 3,851.5