The following tables present the company's intangible asset balances by major asset class.

* Amounts as of September 30, 2022 and December 31, 2021 included a decrease in net intangible asset balances of $389 million and $221 million, respectively, due to foreign currency translation.

**	Other intangibles are primarily acquired proprietary and non-proprietary business processes, methodologies and systems.

The net carrying amount of intangible assets decreased $1,544 million during the first nine months of 2022, primarily due to intangible asset amortization and the impacts of currency, partially offset by additions of acquired intangibles and capitalized software. The aggregate intangible asset amortization expense was $577 million and $1,828 million for the third quarter and first nine months of 2022, respectively, compared to $640 million and $1,880 million for the third quarter and first nine months of 2021, respectively. In the first nine months of 2022, the company retired $647 million of fully amortized intangible assets, impacting both the gross carrying amount and accumulated amortization by this amount. The company also derecognized intangible assets with a gross carrying amount of $1,313 million and $1,149 million of accumulated amortization as part of the divestiture of its healthcare software assets on June 30, 2022.

The future amortization expense relating to intangible assets currently recorded in the Consolidated Balance Sheet was estimated to be the following at September 30, 2022:


	Capitalized		Acquired
(Dollars in millions)	Software		Intangibles		Total
Remainder of 2022	$	157	$	405	$	562
2023		472		1,469		1,941
2024		286		1,452		1,737
2025		63		1,434		1,497
2026		—		1,417		1,417
Thereafter		—		3,813		3,813

Goodwill

The changes in the goodwill balances by segment for the nine months ended September 30, 2022 and for the year ended December 31, 2021 were as follows:


									Foreign
									Currency
					Purchase				Translation
(Dollars in millions)	Balance		Goodwill		Price				and Other		Balance
Segment	1/1/2022		Additions		Adjustments		Divestitures		Adjustments*		9/30/2022
Software	$	43,966	$	442	$	(118)	$	—	$	(1,290)	$	43,001
Consulting		6,797		461		(42)		—		(343)		6,872
Infrastructure		4,396		—		—		(1)		(50)		4,345
Other**		484		—		—		(484)		—		—
Total	$	55,643	$	903	$	(160)	$	(485)	$	(1,683)	$	54,218

*	Primarily driven by foreign currency translation.

**	The company derecognized $484 million of goodwill related to the divestiture of its healthcare software assets. Refer to note 6, “Acquisitions & Divestitures,” for additional information.


									Foreign
									Currency
					Purchase				Translation
(Dollars in millions)	Balance		Goodwill		Price				and Other		Balance
Segment	1/1/2021		Additions		Adjustments		Divestitures		Adjustments*		12/31/2021
Software**	$	42,665	$	1,836	$	23	$	(13)	$	(545)	$	43,966
Consulting		6,145		713		(21)		—		(40)		6,797
Infrastructure		4,436		—		0		—		(39)		4,396
Other**		520		—		—		(37)		1		484
Total	$	53,765	$	2,549	$	2	$	(50)	$	(623)	$	55,643

*	Primarily driven by foreign currency translation.

**	Recast to conform to current year presentation.

There were no goodwill impairment losses recorded during the first nine months of 2022 or full-year 2021 and the company has no accumulated impairment losses. Purchase price adjustments recorded in the first nine months of 2022 and full-year 2021 were related to acquisitions that were still subject to the measurement period that ends at the earlier of 12 months from the acquisition date or when information becomes available. Net purchase price adjustments recorded in the first nine months of 2022 primarily relate to deferred tax assets and liabilities associated with the Turbonomic acquisition.