v3.26.1
Segment Information - Schedule of Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]        
Net sales $ 6,572.2 $ 5,976.6 $ 12,252.0 $ 11,175.7
Cost of sales 5,252.4 4,735.4 9,742.2 8,812.2
Gross profit 1,319.8 1,241.2 2,509.8 2,363.5
Other segment expense items 891.2 821.0 1,705.2 1,581.9
Operating income 428.6 420.2 804.6 781.6
Depreciation and amortization expense 75.3 73.3 150.2 148.2
Commercial        
Segment Reporting [Line Items]        
Net sales 3,965.4 3,631.3 7,534.8 6,886.6
Government        
Segment Reporting [Line Items]        
Net sales 848.0 746.6 1,480.9 1,351.5
Education        
Segment Reporting [Line Items]        
Net sales 933.1 926.6 1,608.1 1,585.1
Other        
Segment Reporting [Line Items]        
Net sales 825.7 672.1 1,628.2 1,352.5
Operating Segments | Commercial        
Segment Reporting [Line Items]        
Net sales 3,965.4 3,631.3 7,534.8 6,886.6
Cost of sales 3,120.1 2,842.1 5,891.4 5,347.6
Gross profit 845.3 789.2 1,643.4 1,539.0
Other segment expense items 462.7 417.5 906.1 806.6
Operating income 382.6 371.7 737.3 732.4
Depreciation and amortization expense 27.0 24.3 53.8 50.9
Operating Segments | Government        
Segment Reporting [Line Items]        
Net sales 848.0 746.6 1,480.9 1,351.5
Cost of sales 684.3 578.4 1,192.5 1,048.4
Gross profit 163.7 168.2 288.4 303.1
Other segment expense items 103.8 117.2 203.3 226.6
Operating income 59.9 51.0 85.1 76.5
Depreciation and amortization expense 10.4 12.5 20.9 24.8
Operating Segments | Education        
Segment Reporting [Line Items]        
Net sales 933.1 926.6 1,608.1 1,585.1
Cost of sales 780.1 784.8 1,342.6 1,337.9
Gross profit 153.0 141.8 265.5 247.2
Other segment expense items 87.9 85.7 161.0 165.8
Operating income 65.1 56.1 104.5 81.4
Depreciation and amortization expense 3.3 4.6 7.0 8.8
Operating Segments | Other        
Segment Reporting [Line Items]        
Net sales 825.7 672.1 1,628.2 1,352.5
Cost of sales 667.9 530.1 1,315.7 1,078.3
Gross profit 157.8 142.0 312.5 274.2
Other segment expense items 105.8 99.4 214.0 192.5
Operating income 52.0 42.6 98.5 81.7
Depreciation and amortization expense 8.0 7.1 15.8 13.9
Headquarters        
Segment Reporting [Line Items]        
Net sales 0.0 0.0 0.0 0.0
Cost of sales 0.0 0.0 0.0 0.0
Gross profit 0.0 0.0 0.0 0.0
Other segment expense items 131.0 101.2 220.8 190.4
Operating income (131.0) (101.2) (220.8) (190.4)
Depreciation and amortization expense $ 26.6 $ 24.8 $ 52.7 $ 49.8