v3.25.4
Stockholders’ Equity and Employee Compensation Plans (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Other Postretirement Benefits Plan      
Class of Stock [Line Items]      
Defined contribution cost $ 10.1 $ 11.5 $ 15.0
Defined Contribution Pension Plan      
Class of Stock [Line Items]      
Defined contribution cost $ 15.9 $ 19.5 $ 25.8
Employer match of total salary (as a percent) 18.00%    
ESPP      
Class of Stock [Line Items]      
Options issued (in shares) 22,600,000    
Number of shares available for grant (in shares) 18,700,000    
Permitted amount of earnings used to purchase ESPP 15.00%    
Purchase price percent 85.00%    
2020 Plan      
Class of Stock [Line Items]      
Options issued (in shares) 91,400,000    
Number of shares available for grant (in shares) 53,800,000    
ESPP | ESPP      
Class of Stock [Line Items]      
Maximum number of shares purchased by an employee in an offering period (in shares) 1,000