Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Segment Reporting Information [Line Items]        
Operating revenue $ 834.2 $ 834.8 $ 2,576.8 $ 2,523.8
Operating income 64.1 154.7 401.9 639.1
General Corporate Expense        
Segment Reporting Information [Line Items]        
Operating income (139.7) (132.7) (335.8) (240.1)
U.S. Information Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 308.3 307.7 939.8 949.7
Operating income 95.4 129.5 332.5 408.9
International | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 235.0 239.8 729.8 687.5
Operating income 19.2 52.9 92.9 128.7
Workforce Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 202.2 186.4 620.9 580.9
Operating income 77.0 80.3 251.0 258.7
Global Consumer Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 88.7 100.9 286.3 305.7
Operating income $ 12.2 $ 24.7 $ 61.3 $ 82.9