SEGMENT INFORMATION (Tables)
 6 Months Ended
Apr. 30, 2017
Segment Reporting [Abstract]  
Segment Reporting, Description of All Other Segments
 
Communications Solutions Group
 
Electronic Industrial Solutions Group
 
Ixia Solutions Group
 
Services Solutions Group
 
Total Segments
 
(in millions)
Three Months Ended April 30, 2017:
 
 
 

 
 
 
 

 
 

Total segment revenue
$
424

 
$
220

 
$
12

 
$
102

 
$
758

Acquisition-related fair value adjustments
(1
)
 
—

 
(4
)
 
—

 
(5
)
Total net revenue
$
423

 
$
220

 
$
8

 
$
102

 
$
753

Segment income (loss) from operations
$
75

 
$
57

 
$
(2
)
 
$
17

 
$
147

Three Months Ended April 30, 2016:
 
 
 

 
 
 
 

 
 

Total segment revenue
$
446

 
$
193

 
$
—

 
$
96

 
$
735

Acquisition-related fair value adjustments
(4
)
 
—

 
—

 
—

 
(4
)
Total net revenue
$
442

 
$
193

 
$
—

 
$
96

 
$
731

Segment income (loss) from operations
$
84

 
$
40

 
$
—

 
$
11

 
$
135


 
Communications Solutions Group
 
Electronic Industrial Solutions Group
 
Ixia Solutions Group
 
Services Solutions Group
 
Total Segments
 
(in millions)
Six Months Ended April 30, 2017:
 
 
 

 
 
 
 

 
 

Total segment revenue
$
858

 
$
412

 
$
12

 
$
202

 
$
1,484

Acquisition-related fair value adjustments
(1
)
 
—

 
(4
)
 
—

 
(5
)
Total net revenue
$
857

 
$
412

 
$
8

 
$
202

 
$
1,479

Segment income (loss) from operations
$
147

 
$
99

 
$
(2
)
 
$
31

 
$
275

Six Months Ended April 30, 2016:
 
 
 

 
 
 
 

 
 

Total segment revenue
$
886

 
$
384

 
$
—

 
$
191

 
$
1,461

Acquisition-related fair value adjustments
(9
)
 
—

 
—

 
—

 
(9
)
Total net revenue
$
877

 
$
384

 
$
—

 
$
191

 
$
1,452

Segment income (loss) from operations
$
162

 
$
78

 
$
—

 
$
24

 
$
264