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Debt and Financing Arrangements - Schedule of Maturities of Long-term Debt (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Sep. 30, 2021
Debt Disclosure [Abstract]    
2023 $ 865  
2024 485  
2025 473  
2026 557  
2027 697  
After 2027 5,247  
Total $ 8,324 $ 7,764