v3.26.1
Debt - Additional information (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jul. 31, 2026
Apr. 30, 2026
Mar. 31, 2026
Feb. 28, 2026
Jan. 31, 2026
Jun. 30, 2026
Jun. 30, 2026
Sep. 30, 2025
Multi-currency revolving credit facility due in 2030                
Debt Instrument [Line Items]                
Maximum borrowing capacity           $ 5,500,000,000 $ 5,500,000,000  
Multi-currency revolving credit facility due in 2030 | Subsequent Event                
Debt Instrument [Line Items]                
Maximum borrowing capacity $ 7,000,000,000.0              
Commercial Paper Program                
Debt Instrument [Line Items]                
Maximum borrowing capacity           4,500,000,000 4,500,000,000  
Short-term debt           17,600,000 $ 17,600,000 $ 0
Debt term             365 days  
Receivables securitization facility due in 2028                
Debt Instrument [Line Items]                
Maximum borrowing capacity           1,500,000,000 $ 1,500,000,000  
Potential increase in receivables securitization facility             500,000,000  
Borrowings outstanding           0 0 0
Receivables securitization facility due in 2028 | Subsequent Event                
Debt Instrument [Line Items]                
Maximum borrowing capacity 1,000,000,000.0              
Potential increase in receivables securitization facility 1,000,000,000.0              
Money Market Facility from April 1 through December 1                
Debt Instrument [Line Items]                
Maximum borrowing capacity           500,000,000 500,000,000  
Money Market Facility from December 1 through March 31                
Debt Instrument [Line Items]                
Maximum borrowing capacity           750,000,000 750,000,000  
Money market facility due in 2027                
Debt Instrument [Line Items]                
Borrowings outstanding           0 0 0
Working capital credit facility due in 2027                
Debt Instrument [Line Items]                
Maximum borrowing capacity           500,000,000 500,000,000  
Borrowings outstanding           0 $ 0 $ 0
Multi-Year Term Loan Facility                
Debt Instrument [Line Items]                
Maximum borrowing capacity         $ 1,500,000,000      
Term Loan Facility Due In 2028                
Debt Instrument [Line Items]                
Maximum borrowing capacity       $ 500,000,000        
Principal payment   $ 300,000,000 $ 200,000,000          
Term loan due in 2029                
Debt Instrument [Line Items]                
Maximum borrowing capacity       $ 1,000,000,000.0        
Term loan due in 2027                
Debt Instrument [Line Items]                
Principal payment           $ 400,000,000    
Term loan due in 2027 | Subsequent Event                
Debt Instrument [Line Items]                
Principal payment $ 400,000,000              
364-Day Term Loan Facility                
Debt Instrument [Line Items]                
Maximum borrowing capacity         $ 3,000,000,000.0      
Debt term       364 days 364 days