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Commitments (Tables)
12 Months Ended
Oct. 31, 2016
Commitments and Contingencies Disclosure [Abstract]  
Future Minimum Annual Lease Commitments
As of October 31, 2016, future minimum operating lease commitments were as follows:
 
Fiscal year
In millions
2017
$
199

2018
204

2019
175

2020
136

2021
75

Thereafter
279

Less: Sublease rental income
(218
)
Total
$
850

Future Unconditional Purchase Obligations
As of October 31, 2016, future unconditional purchase obligations were as follows:
 
Fiscal year
In millions
2017
$
63

2018
61

2019
38

2020
38

2021
38

Thereafter
11

Total
$
249