v3.26.3
Segment Reporting: (Depreciation and Amortization Expense) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Total depreciation and amortization expense $ 511 $ 505 $ 1,534 $ 1,475
Operating Segments        
Segment Reporting [Line Items]        
Total depreciation and amortization expense 187 187 557 535
Other        
Segment Reporting [Line Items]        
Total depreciation and amortization expense 324 318 977 940
International Smoke-Free | Operating Segments        
Segment Reporting [Line Items]        
Total depreciation and amortization expense 93 92 273 252
International Combustibles | Operating Segments        
Segment Reporting [Line Items]        
Total depreciation and amortization expense 67 73 203 216
U.S. | Operating Segments        
Segment Reporting [Line Items]        
Total depreciation and amortization expense $ 27 $ 22 $ 81 $ 67