v3.26.1
Business Segments - Schedule of Financial Information by Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jul. 03, 2026
Jun. 27, 2025
Jul. 03, 2026
Jun. 27, 2025
Segment Reporting [Line Items]        
Revenue $ 5,057,909 $ 4,626,451 $ 14,796,800 $ 13,457,835
Total Revenue   4,626,400    
Depreciation and amortization 136,100 121,800 394,238 352,085
Adjusted operating income 296,100 256,700 882,100 778,300
Reconciliation to Income Before Income Taxes:        
Unallocated corporate expenses (35,300) (26,500) (100,600) (85,700)
Amortization of acquisition- related intangible assets (37,900) (32,100) (103,300) (90,600)
Severance and other charges (5,600) (12,700) (11,100) (12,700)
Gains, losses and settlements impacting comparability (1,700) (2,800) (14,200) (15,300)
Interest Expense, net (79,856) (86,401) (244,016) (251,909)
Income Before Income Taxes 135,730 96,186 408,868 322,117
Amortization of intangible assets     103,300 90,600
Other Acquisitions        
Reconciliation to Income Before Income Taxes:        
Acquisition-related cost, expense       11,100
ARGENTINA        
Reconciliation to Income Before Income Taxes:        
Foreign currency transaction loss 1,400 1,700 1,000 3,000
FSS United States        
Segment Reporting [Line Items]        
Revenue 3,496,400 3,247,200 10,288,800 9,604,600
Food and support services costs 964,700 899,900 2,880,300 2,696,200
Personnel costs 1,298,300 1,234,500 3,884,700 3,658,200
Other direct costs 908,900 818,400 2,530,100 2,343,200
Depreciation and amortization 77,500 72,000 230,200 211,600
Selling expenses 35,900 33,100 103,600 101,500
Adjusted operating income 211,100 189,300 659,900 593,900
Reconciliation to Income Before Income Taxes:        
Severance and other charges (2,000) (4,500) (7,500) (4,500)
Impairment of certain assets related to a business held-for-sale     6,100  
Amortization of intangible assets 27,700 24,800 78,000 72,900
FSS United States | Withdrawal from Multiemployer Defined Benefit Plan        
Segment Reporting [Line Items]        
Personnel costs 800   4,800  
FSS International        
Segment Reporting [Line Items]        
Revenue 1,561,500 1,379,200 4,508,000 3,853,200
Food and support services costs 405,700 371,800 1,195,100 1,036,400
Personnel costs 774,000 704,800 2,274,800 1,991,500
Other direct costs 268,700 211,600 733,500 574,400
Depreciation and amortization 20,600 17,500 60,400 49,200
Selling expenses 7,500 6,100 22,000 17,300
Adjusted operating income 85,000 67,400 222,200 184,400
Reconciliation to Income Before Income Taxes:        
Severance and other charges (3,600) (8,200) (3,600) (8,200)
Legal fees 1,100 1,100 2,400 1,100
Amortization of intangible assets 10,200 7,300 25,200 17,800
FSS International | ARGENTINA        
Reconciliation to Income Before Income Taxes:        
Foreign currency transaction loss $ (1,400) $ (1,700) $ (1,000) $ (3,000)