Annual report pursuant to Section 13 and 15(d)

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

v3.20.4
GOODWILL AND OTHER INTANGIBLE ASSETS - Changes in Amount of Goodwill (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Goodwill [Roll Forward]    
Beginning Balance $ 4,308.3 $ 4,129.7
Acquisitions 58.3 195.9
Adjustments to initial purchase price allocation 0.3 1.3
Foreign currency translation 128.9 (18.6)
Ending Balance 4,495.8 4,308.3
U.S. Information Solutions    
Goodwill [Roll Forward]    
Beginning Balance 1,280.7 1,128.9
Acquisitions 6.0 153.7
Adjustments to initial purchase price allocation 0.0 (1.9)
Foreign currency translation 0.0 0.0
Ending Balance 1,286.7 1,280.7
International    
Goodwill [Roll Forward]    
Beginning Balance 1,829.2 1,844.7
Acquisitions 52.3 2.1
Adjustments to initial purchase price allocation 0.0 3.1
Foreign currency translation 126.4 (20.7)
Ending Balance 2,007.9 1,829.2
Workforce Solutions    
Goodwill [Roll Forward]    
Beginning Balance 1,010.4 970.2
Acquisitions 0.0 40.1
Adjustments to initial purchase price allocation 0.3 0.1
Foreign currency translation 0.0 0.0
Ending Balance 1,010.7 1,010.4
Global Consumer Solutions    
Goodwill [Roll Forward]    
Beginning Balance 188.0 185.9
Acquisitions 0.0 0.0
Adjustments to initial purchase price allocation 0.0 0.0
Foreign currency translation 2.5 2.1
Ending Balance $ 190.5 $ 188.0