v3.26.1
SUPPLEMENTAL FINANCIAL INFORMATION - Additional Information (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Sep. 30, 2024
USD ($)
Jun. 30, 2026
USD ($)
employee
Jun. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Jun. 30, 2024
USD ($)
Restructuring Cost and Reserve [Line Items]          
Foreign currency translation losses non-cash charge $ 801 $ 131 $ 752    
Incremental restructuring charges incurred       $ 1,200  
Expected costs, term (in years)   2 years      
Expected number of personnel, reduction | employee   7,000      
Restructuring charges   $ 1,230 1,114   $ 659
Income Statement Location [Axis]: us-gaap:CostOfGoodsAndServicesSold          
Restructuring Cost and Reserve [Line Items]          
Restructuring charges   $ 606 $ 150    
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]   Cost of products sold Cost of products sold    
Income Statement Location [Axis]: us-gaap:OtherNonoperatingIncomeExpense          
Restructuring Cost and Reserve [Line Items]          
Restructuring charges   $ 165 $ 793    
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]   Other non-operating income/(expense), net Other non-operating income/(expense), net    
Income Statement Location [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense          
Restructuring Cost and Reserve [Line Items]          
Restructuring charges   $ 460 $ 171    
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration]   Selling, general and administrative expense Selling, general and administrative expense    
Minimum          
Restructuring Cost and Reserve [Line Items]          
Historical restructuring costs, before tax   $ 250      
Expected costs   1,500      
Maximum          
Restructuring Cost and Reserve [Line Items]          
Historical restructuring costs, before tax   500      
Expected costs   $ 2,000