Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jul. 03, 2026	Jun. 27, 2025	Jul. 03, 2026	Jun. 27, 2025
Disaggregation of Revenue [Line Items]
Total Revenue	$ 5,057,909	$ 4,626,451	$ 14,796,800	$ 13,457,835
Total Revenue		4,626,400
FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	3,496,400	3,247,200	10,288,800	9,604,600
FSS International
Disaggregation of Revenue [Line Items]
Total Revenue	1,561,500	1,379,200	4,508,000	3,853,200
FSS United States: \| FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	3,496,400	3,247,200	10,288,800	9,604,600
FSS International: \| FSS International
Disaggregation of Revenue [Line Items]
Total Revenue	1,561,500	1,379,200	4,508,000	3,853,200
Europe \| FSS International
Disaggregation of Revenue [Line Items]
Total Revenue	914,800	795,500	2,588,700	2,123,600
Rest of World \| FSS International
Disaggregation of Revenue [Line Items]
Total Revenue	646,700	583,700	1,919,300	1,729,600
Business & Industry \| FSS United States: \| FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	589,700	500,800	1,653,300	1,382,600
Education \| FSS United States: \| FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	784,300	811,900	3,013,200	2,964,500
Healthcare \| FSS United States: \| FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	460,900	413,100	1,325,400	1,229,200
Sports, Leisure & Corrections \| FSS United States: \| FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	1,258,600	1,123,600	3,127,200	2,873,000
Facilities & Other \| FSS United States: \| FSS United States
Disaggregation of Revenue [Line Items]
Total Revenue	$ 402,900	$ 397,800	$ 1,169,700	$ 1,155,300