v3.26.1
Pensions and Other Postretirement Benefits - Additional Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Pension Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Company's contributions to its pension plans $ 3 $ 3
Pension Benefits | Minimum    
Defined Benefit Plan Disclosure [Line Items]    
Expected contributions 10  
Pension Benefits | Maximum    
Defined Benefit Plan Disclosure [Line Items]    
Expected contributions 15  
Postretirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Company's contributions to its pension plans 1 $ 1
Expected contributions $ 1