v3.26.1
GOODWILL AND OTHER INTANGIBLE ASSETS (Notes)
 6 Months Ended
Apr. 30, 2026
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLE ASSETS GOODWILL AND OTHER INTANGIBLE ASSETS
 
The following table presents goodwill balances and the movements for each of our reportable segments during the six months ended April 30, 2026:
 
 Life Sciences and
Diagnostics Markets		Agilent CrossLabApplied MarketsTotal
 (in millions)
Goodwill as of October 31, 2025$2,996 $1,168 $309 $4,473 
Foreign currency translation impact1 4 6 11 
Goodwill as of April 30, 2026$2,997 $1,172 $315 $4,484 
The component parts of other intangible assets as of October 31, 2025 and April 30, 2026 are shown in the table below:
 
 Other Intangible Assets
 Gross
Carrying
Amount		Accumulated
Amortization		Net Book
Value
 (in millions)
As of October 31, 2025   
Purchased technology$1,484 $1,235 $249 
Trademark/Trade name199 181 18 
Customer relationships289 129 160 
Backlog9 2 7 
Third-party technology and licenses34 23 11 
Total amortizable intangible assets$2,015 $1,570 $445 
As of April 30, 2026   
Purchased technology$1,488 $1,259 $229 
Trademark/Trade name199 184 15 
Customer relationships289 140 149 
Backlog9 3 6 
Third-party technology and licenses34 26 8 
Total amortizable intangible assets$2,019 $1,612 $407 

During the six months ended April 30, 2026, there were no additions to goodwill or other intangible assets. During the six months ended April 30, 2026, there was no change in net book value of other intangible assets due to the impact of foreign currency.

In general, for U.S. federal tax purposes, goodwill from asset purchases is amortizable; however, any goodwill created as part of a stock acquisition is not deductible. 

Each quarter we review the events and circumstances to determine if impairment of indefinite-lived intangible assets and goodwill is indicated. During the three and six months ended April 30, 2026 and 2025, we did not identify any triggering events or circumstances which would indicate an impairment of goodwill or indefinite-lived intangible assets.

For the three and six months ended April 30, 2026, amortization expense of intangible assets was $19 million and $38 million, respectively. For the three and six months ended April 30, 2025, amortization expense of intangible assets was $27 million and $55 million, respectively.

Future amortization expense related to existing finite-lived purchased intangible assets for the remainder of fiscal year 2026 and for each of the next five fiscal years and thereafter is estimated below:
Estimated future amortization expense:
(in millions)
Remainder of 2026$37 
2027$72 
2028$65 
2029$61 
2030$52 
2031$47 
Thereafter$73