Quarterly report pursuant to Section 13 or 15(d)

REVENUE - Disaggregation of Revenue (Details)

v3.19.1
REVENUE - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Disaggregation of Revenue [Line Items]    
Operating revenue $ 846.1 $ 865.7
Change in revenue $ (19.6)  
Operating revenue (2.00%)  
Operating Segments | U.S. Information Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 298.3 306.9
Change in revenue $ (8.6)  
Operating revenue (3.00%)  
Operating Segments | U.S. Information Solutions | Online Information Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 217.7 219.7
Change in revenue $ (2.0)  
Operating revenue (1.00%)  
Operating Segments | U.S. Information Solutions | Mortgage Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 32.2 41.7
Change in revenue $ (9.5)  
Operating revenue (23.00%)  
Operating Segments | U.S. Information Solutions | Financial Marketing Services    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 48.4 45.5
Change in revenue $ 2.9  
Operating revenue 6.00%  
Operating Segments | International    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 225.1 244.5
Change in revenue $ (19.4)  
Operating revenue (8.00%)  
Operating Segments | International | Asia Pacific    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 73.1 82.4
Change in revenue $ (9.3)  
Operating revenue (11.00%)  
Operating Segments | International | Europe    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 68.5 70.6
Change in revenue $ (2.1)  
Operating revenue (3.00%)  
Operating Segments | International | Latin America    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 47.2 56.0
Change in revenue $ (8.8)  
Operating revenue (16.00%)  
Operating Segments | International | Canada    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 36.3 35.5
Change in revenue $ 0.8  
Operating revenue 2.00%  
Operating Segments | Workforce Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 228.5 211.1
Change in revenue $ 17.4  
Operating revenue 8.00%  
Operating Segments | Workforce Solutions | Verification Services    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 148.9 128.4
Change in revenue $ 20.5  
Operating revenue 16.00%  
Operating Segments | Workforce Solutions | Employer Services    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 79.6 82.7
Change in revenue $ (3.1)  
Operating revenue (4.00%)  
Operating Segments | Global Consumer Solutions    
Disaggregation of Revenue [Line Items]    
Operating revenue $ 94.2 $ 103.2
Change in revenue $ (9.0)  
Operating revenue (9.00%)