v3.25.4
Debt - Schedule of Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2015
Debt Instrument [Line Items]      
Total debt, principal balance $ 3,407 $ 3,493  
Short-term borrowings and current maturities of long-term debt, principal balance 60 62  
Total long-term debt, principal balance 3,347 3,431  
Long-term debt, carrying value 3,253 3,325  
Carrying Value      
Debt Instrument [Line Items]      
Long-term debt, carrying value 3,253 3,325  
Total debt, carrying value 3,313 3,387  
Short-term debt and current maturities of long-term debt, carrying value 60 62  
Term loan facility      
Debt Instrument [Line Items]      
Long-term debt, principal balance 985 1,100  
Term loan facility | Carrying Value      
Debt Instrument [Line Items]      
Long-term debt, carrying value $ 978 1,089  
6.25% senior secured notes due 2028      
Debt Instrument [Line Items]      
Interest rate, stated percentage 6.25%    
Long-term debt, principal balance $ 830 830  
6.25% senior secured notes due 2028 | Carrying Value      
Debt Instrument [Line Items]      
Long-term debt, carrying value $ 825 823  
7.125% senior notes due 2031      
Debt Instrument [Line Items]      
Interest rate, stated percentage 7.125%    
Long-term debt, principal balance $ 450 450  
7.125% senior notes due 2031 | Carrying Value      
Debt Instrument [Line Items]      
Long-term debt, carrying value $ 446 445  
7.125% senior notes due 2032      
Debt Instrument [Line Items]      
Interest rate, stated percentage 7.125%    
Long-term debt, principal balance $ 585 585  
7.125% senior notes due 2032 | Carrying Value      
Debt Instrument [Line Items]      
Long-term debt, carrying value $ 577 576  
6.70% senior debentures due 2034      
Debt Instrument [Line Items]      
Interest rate, stated percentage 6.70%   6.70%
Long-term debt, principal balance $ 300 300  
6.70% senior debentures due 2034 | Carrying Value      
Debt Instrument [Line Items]      
Long-term debt, carrying value 230 225  
Finance leases, asset financing and other      
Debt Instrument [Line Items]      
Finance leases, asset financing and other 257 228  
Finance leases, asset financing and other | Carrying Value      
Debt Instrument [Line Items]      
Finance leases, asset financing and other $ 257 $ 228