v3.25.4
Financial Instruments - Summary of Debt Exchange (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount $ 2,123 $ 2,820
3.35% Notes, due 2026 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 500  
5.85% Notes, due 2040 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 500  
4.50% Notes, due 2043 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 119  
5.65% Notes, due 2043 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 350  
5.50% Debentures, due 2035 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 400  
New Notes [Member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 1,688  
New Notes [Member] | 3.35% Notes, due 2026 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 441  
New Notes [Member] | 5.85% Notes, due 2040 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 453  
New Notes [Member] | 4.50% Notes, due 2043 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 84  
New Notes [Member] | 5.65% Notes, due 2043 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 337  
New Notes [Member] | 5.50% Debentures, due 2035 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 373  
Old Notes [Member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 181  
Old Notes [Member] | 3.35% Notes, due 2026 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 59  
Old Notes [Member] | 5.85% Notes, due 2040 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 47  
Old Notes [Member] | 4.50% Notes, due 2043 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 35  
Old Notes [Member] | 5.65% Notes, due 2043 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 13  
Old Notes [Member] | 5.50% Debentures, due 2035 [member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount 27  
Notes [Member]    
Disclosure Of Summary Of Debt And Related Derivative Instruments [line items]    
Principal amount $ 1,869