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LEASES (Tables)
3 Months Ended
Jan. 31, 2020
Leases [Abstract]  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Maturity Analysis of Liabilities
The following table presents the maturity of our operating lease liabilities as of January 31, 2020:
 
Operating Leases
 
(in millions)
2020 (remainder)
$
31

2021
38

2022
31

2023
21

2024
15

Thereafter
45

Total undiscounted lease liability
181

Imputed Interest
17

Total discounted lease liability
$
164


Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]
As of October 31, 2019, future non-cancellable rent obligations as determined under ASC 840 were as follows:
 
Operating Leases
 
(in millions)
2020
$
48

2021
40

2022
31

2023
19

2024
12

Thereafter
$
46