Goodwill and Acquired Intangibles

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Acquired Intangibles

Goodwill and Acquired Intangibles

Changes in the carrying amount of goodwill for the years ended December 31, 2023 and 2022 were as follows:

	Commercial Airplanes	Defense, Space & Security	Global Services	Other	Total
Balance at December 31, 2021	$1,316	$3,224	$3,443	$85	$8,068
Goodwill adjustments			(11)		(11)
Balance at December 31, 2022	$1,316	$3,224	$3,432	$85	$8,057
Acquisitions	3	11	16		30
Goodwill adjustments			6		6
Balance at December 31, 2023	$1,319	$3,235	$3,454	$85	$8,093

As of December 31, 2023 and 2022, we had indefinite-lived intangible assets with carrying amounts of $197 relating to trade names. As of December 31, 2023 and 2022, we had an indefinite-lived intangible asset with a carrying amount of $202 related to in process research and development for a next-generation air vehicle.

The gross carrying amounts and accumulated amortization of our acquired finite-lived intangible assets were as follows at December 31:

	2023		2022
	Gross Carrying Amount	Accumulated Amortization	Gross Carrying Amount	Accumulated Amortization
Distribution rights	$2,545	$1,566	$2,546	$1,443
Product know-how	552	465	552	441
Customer base	1,358	837	1,356	777
Developed technology	638	569	621	545
Other	280	241	276	233
Total	$5,373	$3,678	$5,351	$3,439

Amortization expense for acquired finite-lived intangible assets for the years ended December 31, 2023 and 2022 was $235 and $241. Estimated amortization expense for the five succeeding years is as follows:

	2024	2025	2026	2027	2028
Estimated amortization expense	$224	$199	$194	$174	$147