v3.25.4
Impairment, Restructuring and Other Related Phase-Out Costs - Schedule of restructuring reserve by type of cost (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
USD ($)
Restructuring Cost and Reserve [Line Items]  
Restructuring Reserve, Beginning Balance $ 0
Charges incurred in 2025 187
Advances write-off (37)
Amounts paid (70)
Currency translation adjustment 1
Restructuring Reserve, Ending Balance $ 81
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] Impairment, restructuring charges and other related phase-out costs
Labor related liabilities and provisions  
Restructuring Cost and Reserve [Line Items]  
Restructuring Reserve, Beginning Balance $ 0
Charges incurred in 2025 97
Advances write-off 0
Amounts paid (51)
Currency translation adjustment 0
Restructuring Reserve, Ending Balance 46
Non-labor related provision  
Restructuring Cost and Reserve [Line Items]  
Restructuring Reserve, Beginning Balance 0
Charges incurred in 2025 90
Advances write-off (37)
Amounts paid (19)
Currency translation adjustment 1
Restructuring Reserve, Ending Balance $ 35