v3.25.0.1
Related Parties - Equity Investments and Other: (Narrative) (Details)
$ in Millions, $ in Billions
12 Months Ended
Oct. 17, 2024
USD ($)
Oct. 17, 2024
CAD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Aug. 31, 2024
USD ($)
May 31, 2024
Apr. 30, 2023
Mar. 22, 2019
USD ($)
Schedule of Equity Method Investments [Line Items]                  
Equity method investments     $ 1,005 $ 1,309          
Difference between equity method investment carrying value and book value     1,060 907          
Dividends from unconsolidated subsidiaries     151 57          
Deferred tax Liabilities, undistributed foreign earnings     495 438          
Value of financial guarantee (up to)           $ 385      
Impairment charge     2,316 0 $ 0        
Equity securities, unrealized gain     546 49          
Equity securities, unrealized gain, net     418 38          
Definite-Lived Intangibles And Other Assets                  
Schedule of Equity Method Investments [Line Items]                  
Difference between equity method investment carrying value and book value     152 31          
Level 1                  
Schedule of Equity Method Investments [Line Items]                  
Equity securities, noncurrent     $ 921 $ 375          
IPM India                  
Schedule of Equity Method Investments [Line Items]                  
Parent ownership percentage     56.30%            
TTI | PMM                  
Schedule of Equity Method Investments [Line Items]                  
Noncontrolling ownership percentage     33.00%            
Rothmans, Benson & Hedges Inc. , Imperial Tobacco Canada Limited, JTI Macdonald Corp.                  
Schedule of Equity Method Investments [Line Items]                  
Global settlement amount $ 22,300 $ 32.5              
Megapolis                  
Schedule of Equity Method Investments [Line Items]                  
Equity method investments     $ 264            
Ownership interest     23.00%            
Cumulative foreign currency translation losses     $ 633            
Deferred tax Liabilities, undistributed foreign earnings     $ 77            
EITA                  
Schedule of Equity Method Investments [Line Items]                  
Ownership interest     49.00%            
STAEM                  
Schedule of Equity Method Investments [Line Items]                  
Ownership interest     25.00%            
STAEM | EITA                  
Schedule of Equity Method Investments [Line Items]                  
Ownership interest     51.00%            
STAEM | Management Et Developpement Des Actifs Et Des Ressources Holding (MADAR Holding)                  
Schedule of Equity Method Investments [Line Items]                  
Ownership interest     49.00%            
UTC                  
Schedule of Equity Method Investments [Line Items]                  
Ownership interest               25.00%  
Eastern                  
Schedule of Equity Method Investments [Line Items]                  
Ownership interest             14.70%    
RBH                  
Schedule of Equity Method Investments [Line Items]                  
Impairment charge     $ 2,316            
Equity securities                 $ 3,280
RBH | Level 3                  
Schedule of Equity Method Investments [Line Items]                  
Equity securities     $ 714