v3.22.2.2
Cover Page - shares
 9 Months Ended
Sep. 30, 2022
Oct. 28, 2022
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2022  
Document Transition Report false  
Entity File Number 1-39361  
Entity Registrant Name Dun & Bradstreet Holdings, Inc.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 83-2008699  
Entity Address, Address Line One 5335 Gate Parkway  
Entity Address, City or Town Jacksonville  
Entity Address, State or Province FL  
Entity Address, Postal Zip Code 32256  
City Area Code 904  
Local Phone Number 648-6350  
Title of 12(b) Security Common Stock, $0.0001 par value  
Trading Symbol DNB  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   435,731,379
Amendment Flag false  
Document Fiscal Year Focus 2022  
Document Fiscal Period Focus Q3  
Entity Central Index Key 0001799208  
Current Fiscal Year End Date --12-31