Annual report pursuant to Section 13 and 15(d)

SEGMENT INFORMATION - Segment Information (Details)

v3.10.0.1
SEGMENT INFORMATION - Segment Information (Details) - USD ($)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2018
Sep. 30, 2018
Jun. 30, 2018
Mar. 31, 2018
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Segment Reporting Disclosure [Line Items]                      
Operating revenue $ 835.3 $ 834.2 $ 876.9 $ 865.7 $ 838.5 $ 834.8 $ 856.7 $ 832.2 $ 3,412.1 $ 3,362.2 $ 3,144.9
Operating income 46.1 $ 64.1 $ 193.6 $ 144.2 192.6 $ 154.7 $ 265.9 $ 218.6 448.0 831.7 825.1
Total assets 7,153.2       7,233.4       7,153.2 7,233.4  
Depreciation and amortization expense                 310.4 287.8 265.4
Capital expenditures                 368.1 214.0 191.5
General Corporate Expense                      
Segment Reporting Disclosure [Line Items]                      
Operating income                 (503.6) (314.8) (231.3)
Total assets 1,034.8       1,019.0       1,034.8 1,019.0  
Depreciation and amortization expense                 52.0 38.9 29.4
Capital expenditures                 148.3 91.8 87.6
U.S. Information Solutions | Operating Segments                      
Segment Reporting Disclosure [Line Items]                      
Operating revenue                 1,247.3 1,262.7 1,236.5
Operating income                 441.7 539.1 537.0
Total assets 1,654.8       1,587.3       1,654.8 1,587.3  
Depreciation and amortization expense                 79.2 83.7 82.1
Capital expenditures                 42.0 18.6 19.1
International                      
Segment Reporting Disclosure [Line Items]                      
Operating revenue                 966.2 932.3 803.6
International | Operating Segments                      
Segment Reporting Disclosure [Line Items]                      
Operating revenue                 966.2 932.3 803.6
Operating income                 108.6 169.3 111.5
Total assets 2,959.1       3,145.7       2,959.1 3,145.7  
Depreciation and amortization expense                 118.5 109.9 101.6
Capital expenditures                 104.4 59.7 50.3
Workforce Solutions                      
Segment Reporting Disclosure [Line Items]                      
Operating revenue                 826.8 764.2 702.2
Workforce Solutions | Operating Segments                      
Segment Reporting Disclosure [Line Items]                      
Operating revenue                 826.8 764.2 702.2
Operating income                 332.7 331.9 295.5
Total assets 1,249.5       1,227.4       1,249.5 1,227.4  
Depreciation and amortization expense                 45.8 42.1 42.7
Capital expenditures                 44.0 28.9 22.2
Global Consumer Solutions | Operating Segments                      
Segment Reporting Disclosure [Line Items]                      
Operating revenue                   403.0 402.6
Operating income                 68.6 106.2 112.4
Total assets $ 255.0       $ 254.0       255.0 254.0  
Depreciation and amortization expense                 14.9 13.2 9.6
Capital expenditures                 $ 29.4 $ 15.0 $ 12.3