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Leases - Sales-type and Direct Financing Leases, Lease Receivable, Maturity (Details)
$ in Millions
Oct. 31, 2020
USD ($)
Leases [Abstract]  
2021 $ 83
2022 68
2023 44
2024 26
2025 11
Thereafter 2
Total 234
Less: Unearned interest income 48
Net investment in finance leases $ 186