Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
SEGMENT INFORMATION - Operating Revenue and Operating Income by Operating Segment (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Segment Reporting Information [Line Items]        
Operating revenue $ 856.7 $ 811.3 $ 1,689.0 $ 1,539.6
Operating income 264.1 225.7 480.9 401.9
General Corporate Expense        
Segment Reporting Information [Line Items]        
Operating income (48.1) (46.1) (111.0) (117.6)
U.S. Information Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 331.9 307.9 642.0 602.8
Operating income 149.7 134.0 279.4 256.8
International | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 231.4 218.8 447.7 376.9
Operating income 46.1 33.7 75.9 53.0
Workforce Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 194.5 177.3 394.5 357.4
Operating income 89.0 78.3 178.4 156.9
Global Consumer Solutions | Operating Segments        
Segment Reporting Information [Line Items]        
Operating revenue 98.9 107.3 204.8 202.5
Operating income $ 27.4 $ 25.8 $ 58.2 $ 52.8