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GOODWILL AND OTHER INTANGIBLE ASSETS (Tables)
 12 Months Ended
Oct. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill balances and movements for each reportable segments during the period
The following table presents goodwill balances and the movements for each of our reportable segments during the years ended October 31, 2021 and 2022:
Life Sciences and Applied MarketsDiagnostics and GenomicsAgilent CrossLabTotal
 (in millions)
Goodwill as of October 31, 2020$1,738 $1,599 $265 $3,602 
Foreign currency translation impact5 — 3 8 
Goodwill arising from acquisitions and adjustments— 365 — 365 
Goodwill as of October 31, 2021$1,743 $1,964 $268 $3,975 
Foreign currency translation impact(19)(11)(12)(42)
Goodwill arising from acquisitions and adjustments19 — — 19 
Goodwill as of October 31, 2022$1,743 $1,953 $256 $3,952 
Schedule of Acquired Finite-Lived Intangible Assets by Major Class
The component parts of other intangible assets at October 31, 2021 and 2022 are shown in the table below:
 Other Intangible Assets
 Gross
Carrying
Amount		Accumulated
Amortization		Net Book
Value
 (in millions)
As of October 31, 2021:   
Purchased technology$1,742 $972 $770 
Backlog8 3 5 
Trademark/Tradename196 133 63 
Customer relationships357 228 129 
Third-party technology and licenses11 8 3 
Total amortizable intangible assets$2,314 $1,344 $970 
In-Process R&D11 — 11 
Total$2,325 $1,344 $981 
As of October 31, 2022:   
Purchased technology$1,733 $1,068 $665 
Backlog8 8 — 
Trademark/Tradename196 148 48 
Customer relationships180 105 75 
Third-party technology and licenses32 9 23 
Total amortizable intangible assets$2,149 $1,338 $811 
In-Process R&D10 — 10 
Total$2,159 $1,338 $821 
Future Amortization expense for the next five years and thereafter
Future amortization expense related to existing finite-lived purchased intangible assets associated with business combinations for the next five fiscal years and thereafter is estimated below:
Estimated future amortization expense:
(in millions)
2023$145 
2024$126 
2025$102 
2026$72 
2027$71 
Thereafter$295