Changes in the carrying amount of goodwill attributable to each reportable segment were as follows:


($ in millions)	Flexibles Segment		Rigid Packaging Segment		Total
Balance as of June 30, 2023	$	4,391	$	975	$	5,366
Acquisitions (1)	12		—		12

Foreign currency translation	(27)		(1)		(28)
Balance as of September 30, 2023	$	4,376	$	974	$	5,350

(1)Acquisitions are attributed to goodwill recognized in connection with the business combination detailed in Note 3, "Acquisitions".

Goodwill is not amortized but is tested for impairment annually in the fourth quarter of the fiscal year, or during interim periods if events or circumstances arise which indicate that goodwill may be impaired.

Other intangible assets, net were comprised of the following:


	September 30, 2023
($ in millions)	Gross Carrying Amount		Accumulated Amortization and Impairment (1)		Net Carrying Amount
Customer relationships	$	1,983	$	(691)	$	1,292
Computer software	262		(184)		78
Other (2)	325		(213)		112
Total other intangible assets	$	2,570	$	(1,088)	$	1,482


	June 30, 2023
($ in millions)	Gross Carrying Amount		Accumulated Amortization and Impairment (1)		Net Carrying Amount
Customer relationships	$	1,987	$	(660)	$	1,327
Computer software	261		(185)		76
Other (2)	327		(206)		121
Total other intangible assets	$	2,575	$	(1,051)	$	1,524

(1)Accumulated amortization and impairment as of September 30, 2023 and June 30, 2023 included $34 million of accumulated impairment in the Other category.

(2)As of September 30, 2023 and June 30, 2023, Other included $17 million of acquired intellectual property assets not yet being amortized as the related R&D projects have not yet been completed.

Amortization expenses for intangible assets were $44 million and $43 million during the three months ended September 30, 2023 and 2022, respectively.