v3.26.1
Leases - Schedule of Operating Lease Right of Use Assets and Operating Lease Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Sep. 30, 2025
Operating leases:    
Operating lease right-of-use assets $ 262 $ 259
Operating lease liabilities - current 86 82
Operating lease liabilities - noncurrent 175 176
Present value of lease liabilities $ 261 $ 258
Weighted average remaining lease term:    
Operating leases (in years) 4 years 5 years
Weighted average discount rate:    
Operating leases (as percentage) 6.20% 6.00%
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other noncurrent assets Other noncurrent assets
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Other current liabilities Other current liabilities
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Liabilities, Noncurrent Other Liabilities, Noncurrent