v3.24.2
EARNINGS PER COMMON SHARE - Basic and Diluted Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Earnings Per Share [Abstract]        
Net income attributable to American Tower Corporation common stockholders, basic $ 900.3 $ 475.7 $ 1,817.7 $ 811.5
Net income attributable to American Tower Corporation common stockholders, diluted $ 900.3 $ 475.7 $ 1,817.7 $ 811.5
Basic weighted average common shares outstanding (in shares) 467,038 466,087 466,778 465,915
Dilutive securities (in shares) 743 892 1,015 1,024
Diluted weighted average common shares outstanding (in shares) 467,781 466,979 467,793 466,939
Basic net income attributable to American Tower Corporation common stockholders per common share (in dollars per share) $ 1.93 $ 1.02 $ 3.89 $ 1.74
Diluted net income attributable to American Tower Corporation common stockholders per common share (in dollars per share) $ 1.92 $ 1.02 $ 3.89 $ 1.74