v3.26.1
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2026
Jul. 28, 2026
Document and Entity Information    
Entity Registrant Name AMPHENOL CORPORATION  
Entity Central Index Key 0000820313  
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2026  
Securities Act File Number 1-10879  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 22-2785165  
Entity Address, Address Line One 358 Hall Avenue  
Entity Address, City or Town Wallingford  
Entity Address, State or Province CT  
Entity Address, Postal Zip Code 06492  
City Area Code 203  
Local Phone Number 265-8900  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Common Stock, Shares Outstanding   1,232,983,457
Document Fiscal Year Focus 2026  
Document Fiscal Period Focus Q2  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Class A Common Stock    
Document and Entity Information    
Title of 12(b) Security Class A Common Stock, $0.001 par value  
Trading Symbol APH  
Security Exchange Name NYSE  
3.375% Senior Notes due 2029    
Document and Entity Information    
Title of 12(b) Security 3.375% Senior Notes due 2029  
Trading Symbol APH29B  
Security Exchange Name NYSE  
3.125% Senior Notes due 2032    
Document and Entity Information    
Title of 12(b) Security 3.125% Senior Notes due 2032  
Trading Symbol APH32  
Security Exchange Name NYSE  
3.875% Senior Notes due 2034    
Document and Entity Information    
Title of 12(b) Security 3.875% Senior Notes due 2034  
Trading Symbol APH34A  
Security Exchange Name NYSE