v3.25.2
Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Earnings Per Share [Abstract]        
Net income attributable to stockholders of UL Solutions $ 91 $ 101 $ 158 $ 157
Basic weighted average common shares outstanding (in shares) 201 200 201 200
Effect of dilutive securities (in shares) 2 1 2 1
Diluted weighted average common shares outstanding (in shares) 203 201 203 201
Basic earnings per share attributable to stockholder of UL Solutions (in dollars per share) $ 0.45 $ 0.51 $ 0.79 $ 0.79
Diluted earnings per share attributable to stockholder of UL Solutions (in dollars per share) $ 0.45 $ 0.50 $ 0.78 $ 0.78