v3.26.1
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share        
Net Income (Loss) $ 1,769.2 $ 1,091.3 $ 2,702.2 $ 1,829.1
Weighted average common shares outstanding - Basic (in shares) 1,230.4 1,215.3 1,229.7 1,212.5
Effect of dilutive stock options (in shares) 58.8 56.9 59.7 56.7
Weighted average common shares outstanding - Diluted (in shares) 1,289.2 1,272.2 1,289.4 1,269.2
Net income attributable to Amphenol Corporation per common share - Basic        
Net income attributable to Amphenol Corporation per common share - Basic (in dollars per share) $ 1.44 $ 0.9 $ 2.2 $ 1.51
Net income attributable to Amphenol Corporation per common share - Diluted        
Net income attributable to Amphenol Corporation per common share - Diluted (in dollars per share) $ 1.37 $ 0.86 $ 2.1 $ 1.44
Anti-dilutive common shares        
Anti-dilutive stock options, excluded from the computations of earnings per share (in shares) 4.3 8.3 1.9 8.2