Identified intangible assets as of June 30, 2024 and December 31, 2023, respectively, were composed of the following:


	June 30, 2024		December 31, 2023
	Gross carrying amount	Accumulated amortization	Gross carrying amount	Accumulated amortization
In-process R&D (IPR&D) 1)	33	—	70	—

Customer-related	791	(377)	788	(352)
Technology-based	944	(595)	1,406	(990)
Identified intangible assets	1,768	(972)	2,264	(1,342)

1) IPR&D is not subject to amortization until completion or abandonment of the associated research and development effort.

The estimated amortization expense for these identified intangible assets for each of the five succeeding years is:

All intangible assets, excluding IPR&D and goodwill, are subject to amortization and have no assumed residual value.

The expected weighted average remaining life of identified intangibles is 5 years as of June 30, 2024 (December 31, 2023: 4 years).