Intangible Assets and Goodwill (Tables)

3 Months Ended

Mar. 31, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets and Goodwill

(Dollars in Millions)	March 31, 2024	December 31, 2023
Intangible assets with definite lives:
Patents and trademarks — gross	$39,198	40,417
Less accumulated amortization	(24,826)	(24,808)
Patents and trademarks — net	14,372	15,609
Customer relationships and other intangibles — gross	19,930	20,322
Less accumulated amortization	(12,742)	(12,685)
Customer relationships and other intangibles — net(1)	7,188	7,637
Intangible assets with indefinite lives:
Trademarks	1,649	1,714
Purchased in-process research and development	11,077	9,215
Total intangible assets with indefinite lives	12,726	10,929
Total intangible assets — net	$34,286	34,175

(1)The majority is comprised of customer relationships

Goodwill

Goodwill as of March 31, 2024 was allocated by segment of business as follows:

(Dollars in Millions)	Innovative Medicine	MedTech	Total
Goodwill at December 31, 2023	$10,407	26,151	36,558
Goodwill, related to acquisitions	290	—	290
Goodwill, related to divestitures	—	—	—
Currency translation/Other	(145)	(87)	(232)
Goodwill at March 31, 2024	$10,552	26,064	36,616

Intangible Asset Amortization Expense

The estimated amortization expense for approved products, before tax, for the five succeeding years is approximately:

(Dollars in Millions)
2024	2025	2026	2027	2028
$4,300	3,500	2,900	2,300	1,600