Quarterly report pursuant to Section 13 or 15(d)

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

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GOODWILL AND INTANGIBLE ASSETS - Schedule of Changes in Amount of Goodwill (Details)
$ in Millions
 9 Months Ended
Sep. 30, 2021
USD ($)
Goodwill [Roll Forward]  
Balance, Beginning of period $ 4,495.8
Acquisitions 729.4
Adjustments to initial purchase price allocation 0.7
Foreign currency translation (55.4)
Divestitures (1.3)
Balance, End of period 5,169.2
Workforce Solutions  
Goodwill [Roll Forward]  
Balance, Beginning of period 1,010.7
Acquisitions 223.8
Adjustments to initial purchase price allocation 0.0
Foreign currency translation 0.0
Divestitures 0.0
Balance, End of period 1,234.5
U.S. Information Solutions  
Goodwill [Roll Forward]  
Balance, Beginning of period 1,286.7
Acquisitions 487.2
Adjustments to initial purchase price allocation 0.7
Foreign currency translation 0.0
Divestitures 0.0
Balance, End of period 1,774.6
International  
Goodwill [Roll Forward]  
Balance, Beginning of period 2,007.9
Acquisitions 18.4
Adjustments to initial purchase price allocation 0.0
Foreign currency translation (56.9)
Divestitures (1.3)
Balance, End of period 1,968.1
Global Consumer Solutions  
Goodwill [Roll Forward]  
Balance, Beginning of period 190.5
Acquisitions 0.0
Adjustments to initial purchase price allocation 0.0
Foreign currency translation 1.5
Divestitures 0.0
Balance, End of period $ 192.0