v3.26.1
Related Party Transactions (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Related Party Transaction [Line Items]    
Dividends to stockholders of UL Solutions $ 29 $ 26
UL Standards & Engagement Transactions    
Related Party Transaction [Line Items]    
Incurred expenses 5 5
Related Party    
Related Party Transaction [Line Items]    
Dividends to stockholders of UL Solutions $ 18 $ 18