Quarterly report pursuant to Section 13 or 15(d)

SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details)

v3.22.2
SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Segment Reporting Information [Line Items]        
Operating revenue $ 1,316.7 $ 1,234.8 $ 2,680.0 $ 2,447.8
Operating income 304.6 306.0 637.1 612.6
General Corporate Expense        
Segment Reporting Information [Line Items]        
Operating income (121.0) (129.9) (255.5) (273.7)
Workforce Solutions        
Segment Reporting Information [Line Items]        
Operating revenue 609.2 502.0 1,258.1 989.2
Workforce Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating income 281.2 265.8 589.7 531.5
U.S. Information Solutions        
Segment Reporting Information [Line Items]        
Operating revenue 421.4 455.7 854.4 915.1
U.S. Information Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating income 112.0 136.7 233.5 291.6
International        
Segment Reporting Information [Line Items]        
Operating revenue 286.1 277.1 567.5 543.5
International | Operating Segments        
Segment Reporting Information [Line Items]        
Operating income $ 32.4 $ 33.4 $ 69.4 $ 63.2