v3.25.0.1
Restructuring Activities: (Narrative) (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2024
USD ($)
Mar. 31, 2023
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Oct. 29, 2024
subsidiary
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     $ 180 $ 109  
Exit costs       0  
Total reclassification of accumulated foreign currency translation losses from other comprehensive losses     38 0  
Number of subsidiaries with proposals for factory closure | subsidiary         2
Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     77 78  
Asset Impairment          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     65 $ 31  
e-Vapor Products Manufacturing Optimization          
Restructuring Cost and Reserve [Line Items]          
Exit costs   $ 109      
e-Vapor Products Manufacturing Optimization | Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Exit costs   78      
e-Vapor Products Manufacturing Optimization | Finance Lease Termination          
Restructuring Cost and Reserve [Line Items]          
Exit costs   21      
e-Vapor Products Manufacturing Optimization | Asset Impairment          
Restructuring Cost and Reserve [Line Items]          
Exit costs   $ 31      
US Restructuring          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     133    
US Restructuring | Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     73    
US Restructuring | Asset Impairment          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     60    
US Restructuring | Pre Paid Commitments          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs     $ 20    
Venezuela Plan          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs $ 47        
Total reclassification of accumulated foreign currency translation losses from other comprehensive losses 38        
Venezuela Plan | Contract Termination          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs 4        
Venezuela Plan | Asset Impairment          
Restructuring Cost and Reserve [Line Items]          
Pre-tax asset impairment and exit costs $ 5