Intangible Assets

3 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

Intangible Assets

Intangible assets consisted of:

	December 31, 2022						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	$	15,136	$	(6,262)	$	8,874	$	15,087	$	(5,979)	$	9,108
Customer relationships	4,859		(2,260)		2,599		4,853		(2,170)		2,683
Product rights	104		(79)		25		97		(72)		25
Trademarks	408		(160)		248		408		(155)		253
Patents and other	552		(355)		197		542		(346)		196
Amortized intangible assets	$	21,059	$	(9,116)	$	11,943	$	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 December 31, 2022 and 2021 was $365 million and $355 million, 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
Purchase price allocation adjustments	3		—		—		3
Currency translation	54		10		76		139
Goodwill as of December 31, 2022	$	10,965	$	898	$	12,900	$	24,763