Intangible Assets

9 Months Ended

Jun. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets consisted of:


	June 30, 2023						September 30, 2022
(Millions of dollars)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Amortized intangible assets
Developed technology	$	15,105	$	(6,770)	$	8,335	$	15,087	$	(5,979)	$	9,108
Customer relationships	4,861		(2,435)		2,426		4,853		(2,170)		2,683
Patents, trademarks and other	1,120		(614)		506		1,046		(574)		473
Amortized intangible assets	$	21,087	$	(9,820)	$	11,267	$	20,987	$	(8,723)	$	12,264
Unamortized intangible assets
Acquired in-process research and development	$	44					$	44
Trademarks	2						2
Unamortized intangible assets	$	46					$	46

Intangible amortization expense for the three months ended June 30, 2023 and 2022 was $367 million and $357 million, respectively. Intangible amortization expense for the nine months ended June 30, 2023 and 2022 was $1.098 billion and $1.064 billion, respectively.

The following is a reconciliation of goodwill by business segment:


(Millions of dollars)	Medical		Life Sciences		Interventional		Total
Goodwill as of September 30, 2022	$	10,909	$	888	$	12,824	$	24,621

Divestitures and related adjustments (a)	—		—		(218)		(218)
Purchase price allocation adjustments (b)	13		—		—		13
Currency translation	59		13		95		167
Goodwill as of June 30, 2023	$	10,981	$	901	$	12,702	$	24,584

(a) Represents goodwill reclassified to Assets held for sale in connection with the Company's agreement to sell its Surgical Instrumentation platform, as further discussed in Note 9.

(b) The purchase price allocation adjustments were primarily driven by an adjustment to tax-related balances recorded upon the finalization of the Parata acquisition allocation within one year of the transaction's closing.