v3.26.1
Goodwill and Other Intangible Assets (Tables)
 9 Months Ended
Jun. 30, 2026
Intangible Asset, Goodwill and Other [Abstract]  
Changes in Carrying Amount of Goodwill
The following table summarizes changes in the carrying amount of goodwill in each of the Company’s reportable segments (in millions):
Nine Months Ended June 30, 2026
AmericasEMEAAPACTotal
Goodwill$14,092 $2,388 $1,348 $17,828 
Accumulated impairment loss(918)(277)— (1,195)
Balance at beginning of period13,174 2,111 1,348 16,633 
Acquisitions193 3 — 196 
Foreign currency translation and other (1)
(30)(188)1 (217)
Balance at end of period$13,337 $1,926 $1,349 $16,612 
(1) Includes the allocation of goodwill to the ADT Spain Security business and the ADT United Kingdom Residential Security business disposal groups of $38 million and $102 million, respectively. Refer to Note 3, "Acquisitions and Divestitures" of the notes to the consolidated financial statements for further information.
Other Intangible Assets
Other intangible assets, primarily from business acquisitions, consisted of (in millions):
 June 30, 2026September 30, 2025
 Gross
Carrying
Amount		Accumulated
Amortization		NetGross
Carrying
Amount		Accumulated
Amortization		Net
Definite-lived intangible assets
Technology$1,330 $(787)$543 $1,197 $(714)$483 
Customer relationships2,006 (1,384)622 2,026 (1,272)754 
Miscellaneous993 (569)424 910 (511)399 
4,329 (2,740)1,589 4,133 (2,497)1,636 
Indefinite-lived intangible assets
Trademarks/trade names1,961 — 1,961 1,977 — 1,977 
Total intangible assets$6,290 $(2,740)$3,550 $6,110 $(2,497)$3,613