v3.26.1
Debt and Other Financing Activities - Credit Agreements and Refinancing - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
May 28, 2026
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2025
Debt Instrument [Line Items]        
Payment of debt issuance costs     $ 2 $ 0
2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Line of credit facility, unused capacity, commitment fee percentage     0.175%  
Debt issuance costs   $ 2 $ 2  
Payment of debt issuance costs   $ 2 $ 2  
2026 Credit Agreement [Member] | Unsecured Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Unsecured line of credit $ 500      
Debt instrument, term 5 years      
2026 Credit Agreement [Member] | Letter of Credit [Member]        
Debt Instrument [Line Items]        
Unsecured line of credit $ 125      
EURIBOR [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Debt instruments, percentage points added to variable rate   1.375% 1.375%  
Alternate base rate [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Debt instruments, percentage points added to variable rate   0.375% 0.375%  
Minimum [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Line of credit facility, unused capacity, commitment fee percentage     0.125%  
Minimum [Member] | EURIBOR [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Debt instruments, percentage points added to variable rate   1.25% 1.25%  
Minimum [Member] | Alternate base rate [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Debt instruments, percentage points added to variable rate   0.25% 0.25%  
Maximum [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Line of credit facility, unused capacity, commitment fee percentage     0.275%  
Maximum [Member] | EURIBOR [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Debt instruments, percentage points added to variable rate   1.75% 1.75%  
Maximum [Member] | Alternate base rate [Member] | 2026 Credit Agreement [Member]        
Debt Instrument [Line Items]        
Debt instruments, percentage points added to variable rate   0.75% 0.75%