v3.26.1
Cover - shares
 9 Months Ended
Jun. 30, 2026
Jul. 31, 2026
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2026  
Document Transition Report false  
Entity File Number 1-16671  
Entity Registrant Name CENCORA, INC.  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 23-3079390  
Entity Address, Address Line One 1 West First Avenue  
Entity Address, City or Town Conshohocken,  
Entity Address, State or Province PA  
Entity Address, Postal Zip Code 19428-1800  
City Area Code 610  
Local Phone Number 727-7000  
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   190,827,165
Entity Central Index Key 0001140859  
Amendment Flag false  
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q3  
Current Fiscal Year End Date --09-30  
Common Stock    
Document Information [Line Items]    
Title of 12(b) Security Common stock, par value $0.01 per share  
Trading Symbol COR  
Security Exchange Name NYSE  
2.875% Senior Notes due 2028    
Document Information [Line Items]    
Title of 12(b) Security 2.875% Senior Notes due 2028  
Trading Symbol COR28  
Security Exchange Name NYSE  
3.625% Senior Notes due 2032    
Document Information [Line Items]    
Title of 12(b) Security 3.625% Senior Notes due 2032  
Trading Symbol COR32  
Security Exchange Name NYSE