v3.26.1
Goodwill and Other Intangible Assets, net (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]          
Amortization of intangibles $ 23   $ 37 $ 132  
Goodwill impairment 0 $ 285 873 1,158  
Accumulated impairment losses related to goodwill 1,158        
Goodwill 5,787 5,787   5,787 $ 6,945
E-Vapor [Member]          
Finite-Lived Intangible Assets [Line Items]          
Asset impairment charges       $ 970  
Goodwill impairment   $ 285 873    
Goodwill     $ 895   $ 1,768
Percentage exceeded over carrying value         28.00%
Amount over carrying value         $ 300
UST Inc. [Member]          
Finite-Lived Intangible Assets [Line Items]          
Indefinite-lived trademarks 8,500        
UST Inc. [Member] | Copenhagen [Member]          
Finite-Lived Intangible Assets [Line Items]          
Indefinite-lived trademarks 4,000        
UST Inc. [Member] | Skoal [Member]          
Finite-Lived Intangible Assets [Line Items]          
Indefinite-lived trademarks 3,600        
UST Inc. [Member] | Trademarks, MST [Member]          
Finite-Lived Intangible Assets [Line Items]          
Indefinite-lived trademarks 900        
Middleton [Member]          
Finite-Lived Intangible Assets [Line Items]          
Indefinite-lived trademarks $ 2,600        
Weighted Average [Member] | Definite-Lived Intangible Assets [Member]          
Finite-Lived Intangible Assets [Line Items]          
Definite-lived intangible assets amortization period, weighted average, in years 19 years        
Minimum [Member] | E-Vapor [Member]          
Finite-Lived Intangible Assets [Line Items]          
Discount rate     12.00%    
Maximum [Member] | E-Vapor [Member]          
Finite-Lived Intangible Assets [Line Items]          
Discount rate     15.00%