Quarterly report pursuant to Section 13 or 15(d)

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

v3.23.1
SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Segment Reporting Information [Line Items]    
Operating revenue $ 1,302.0 $ 1,363.2
Operating income 205.4 332.4
General Corporate Expense    
Segment Reporting Information [Line Items]    
Operating income (154.6) (134.5)
Workforce Solutions    
Segment Reporting Information [Line Items]    
Operating revenue 596.3 649.0
Workforce Solutions | Operating Segments    
Segment Reporting Information [Line Items]    
Operating income 248.7 308.4
U.S. Information Solutions    
Segment Reporting Information [Line Items]    
Operating revenue 421.7 432.9
U.S. Information Solutions | Operating Segments    
Segment Reporting Information [Line Items]    
Operating income 78.6 121.5
International    
Segment Reporting Information [Line Items]    
Operating revenue 284.0 281.3
International | Operating Segments    
Segment Reporting Information [Line Items]    
Operating income $ 32.7 $ 37.0