v3.26.1
Supplemental financial information - Amounts Reclassified out of AOCI (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (expense), net (OI&E) $ 69 $ 48 $ 116 $ 128
Provision for income taxes (258) (183) (427) (280)
Net income 1,980 1,295 3,525 2,474
Reclassification out of Accumulated Other Comprehensive Income | Net actuarial losses of defined benefit plans:        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (expense), net (OI&E) [1] 1 5 1 8
Provision for income taxes 0 (1) 0 (2)
Net income 1 4 1 6
Reclassification out of Accumulated Other Comprehensive Income | Prior service cost (credit) of defined benefit plans:        
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]        
Other income (expense), net (OI&E) [1] 1 0 2 0
Provision for income taxes (1) 0 (1) 0
Net income $ 0 $ 0 $ 1 $ 0
[1] Detailed in Note 5