v3.26.1
Restructuring Program - Narrative (Details)
$ in Millions
 3 Months Ended 6 Months Ended 9 Months Ended
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Mar. 31, 2026
USD ($)
employee
Restructuring Cost and Reserve [Line Items]      
Expected costs, term (in years)     2 years
Expected number of personnel, reduction | employee     7,000
Restructuring charges $ 198 $ 584 $ 782
Cost of Sales      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 138   418
Selling, General and Administrative Expenses      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 53   330
Other Non-operating Income/(Expense)      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges 6   33
Minimum      
Restructuring Cost and Reserve [Line Items]      
Historical restructuring costs, before tax 250   250
Expected costs 1,500   1,500
Maximum      
Restructuring Cost and Reserve [Line Items]      
Historical restructuring costs, before tax 500   500
Expected costs $ 2,000   $ 2,000