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Property, Equipment and Technology, Net - Estimated Future Amortization Expense on Technology Placed in Service (Detail) - Technology and Software
$ in Millions
Sep. 30, 2023
USD ($)
Finite-Lived Intangible Assets [Line Items]  
2024 $ 605
2025 505
2026 341
2027 197
2028 84
Thereafter 25
Total $ 1,757