Quarterly report pursuant to Section 13 or 15(d)

GOODWILL AND INTANGIBLE ASSETS - Changes in Amount of Goodwill (Details)

v3.10.0.1
GOODWILL AND INTANGIBLE ASSETS - Changes in Amount of Goodwill (Details)
$ in Millions
9 Months Ended
Sep. 30, 2018
USD ($)
Goodwill [Roll Forward]  
Balance, Beginning of period $ 4,184.0
Acquisitions 76.8
Adjustments to initial purchase price allocation 1.0
Foreign currency translation (99.0)
Balance, End of period 4,162.8
U.S. Information Solutions  
Goodwill [Roll Forward]  
Balance, Beginning of period 1,071.3
Acquisitions 57.7
Adjustments to initial purchase price allocation 0.0
Foreign currency translation 0.0
Balance, End of period 1,129.0
International  
Goodwill [Roll Forward]  
Balance, Beginning of period 1,969.4
Acquisitions 2.0
Adjustments to initial purchase price allocation 1.0
Foreign currency translation (97.8)
Balance, End of period 1,874.6
Workforce Solutions  
Goodwill [Roll Forward]  
Balance, Beginning of period 952.1
Acquisitions 17.1
Adjustments to initial purchase price allocation 1.0
Foreign currency translation 0.0
Balance, End of period 970.2
Global Consumer Solutions  
Goodwill [Roll Forward]  
Balance, Beginning of period 191.2
Acquisitions 0.0
Adjustments to initial purchase price allocation (1.0)
Foreign currency translation (1.2)
Balance, End of period $ 189.0