Quarterly report [Sections 13 or 15(d)]

SEGMENT INFORMATION - Segment Information (Details)

v3.26.3
SEGMENT INFORMATION - Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Segment Reporting [Line Items]          
Operating Revenue $ 1,692.5 $ 1,544.9 $ 5,041.5 $ 4,523.9  
Cost of services 752.4 663.2 2,293.1 1,984.4  
Selling, general and administrative expenses 390.4 434.1 1,224.0 1,193.2  
Depreciation and amortization expenses 194.4 183.3 567.2 535.3  
Operating income 355.3 264.3 957.2 811.0  
General corporate expense (1,337.2) (1,280.6) (4,084.3) (3,712.9)  
Other income, net 3.8 3.2 10.1 9.2  
Interest expense (62.3) (52.2) (177.8) (158.2)  
Consolidated income before income taxes 296.8 215.3 789.5 662.0  
Total assets 11,937.1   11,937.1   $ 11,864.2
Total capital expenditures 127.2 125.8 373.7 349.1  
Operating Segments          
Segment Reporting [Line Items]          
Operating Revenue 1,692.5 1,544.9 5,041.5 4,523.9  
Cost of services 719.9 635.1 2,192.5 1,891.6  
Selling, general and administrative expenses 288.9 286.2 873.5 844.5  
Depreciation and amortization expenses 168.9 158.1 494.0 463.2  
Operating income 514.8 465.5 1,481.5 1,324.6  
General corporate expense          
Segment Reporting [Line Items]          
General corporate expense (159.5) (201.2) (524.3) (513.6)  
Total assets 840.7   840.7   813.3
Total capital expenditures 42.7 38.8 125.7 102.9  
Other income, net and Interest expense          
Segment Reporting [Line Items]          
Other income, net 3.8 3.2 10.1 9.2  
Interest expense (62.3) (52.2) (177.8) (158.2)  
Workforce Solutions | Operating Segments          
Segment Reporting [Line Items]          
Operating Revenue 693.9 649.4 2,082.4 1,930.1  
Cost of services 256.7 237.9 764.5 703.6  
Selling, general and administrative expenses 80.6 79.8 238.2 234.0  
Depreciation and amortization expenses 50.3 47.2 147.3 136.5  
Operating income 306.3 284.5 932.4 856.0  
Total assets 4,081.6   4,081.6   4,067.6
Total capital expenditures 29.2 25.7 86.4 71.9  
U.S. Information Solutions | Operating Segments          
Segment Reporting [Line Items]          
Operating Revenue 599.1 530.2 1,816.3 1,551.6  
Cost of services 288.7 239.8 917.5 706.6  
Selling, general and administrative expenses 99.0 104.3 304.4 309.3  
Depreciation and amortization expenses 66.0 62.8 188.8 188.8  
Operating income 145.4 123.3 405.6 346.9  
Total assets 3,280.4   3,280.4   3,354.1
Total capital expenditures 27.0 25.5 78.2 76.9  
International | Operating Segments          
Segment Reporting [Line Items]          
Operating Revenue 399.5 365.3 1,142.8 1,042.2  
Cost of services 174.5 157.4 510.5 481.4  
Selling, general and administrative expenses 109.3 102.1 330.9 301.2  
Depreciation and amortization expenses 52.6 48.1 157.9 137.9  
Operating income 63.1 57.7 143.5 121.7  
Total assets 3,734.4   3,734.4   $ 3,629.2
Total capital expenditures $ 28.3 $ 35.8 $ 83.4 $ 97.4