v3.22.2.2
Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2022
Aug. 19, 2022
Dec. 31, 2021
Document Document And Entity Information [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false    
Document Period End Date Jun. 30, 2022    
Entity File Number 001-36587    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-8737688    
Entity Address, Address Line One 14 Schoolhouse Road    
Entity Address, City or Town Somerset,    
Entity Address, State or Province NJ    
Entity Address, Postal Zip Code 08873    
City Area Code (732)    
Local Phone Number 537-6200    
Trading Symbol CTLT    
Entity Registrant Name CATALENT, INC.    
Entity Central Index Key 0001596783    
Current Fiscal Year End Date --06-30    
Entity Well-known Seasoned Issuer Yes    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Entity Filer Category Large Accelerated Filer    
Entity Emerging Growth Company false    
Entity Small Business false    
Entity Shell Company false    
Entity Common Stock, Shares Outstanding (shares)   179,895,677.00  
Entity Interactive Data Current Yes    
Security Exchange Name NYSE    
Title of 12(b) Security Common Stock, $0.01 par value per share    
ICFR Auditor Attestation Flag true    
Entity Public Float     $ 21,840,000,000