Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Intangible assets with indefinite lives:
Total intangible assets with indefinite lives	$ 12,726	$ 10,929
Total intangible assets — net	34,286	34,175
Trademarks
Intangible assets with indefinite lives:
Total intangible assets with indefinite lives	1,649	1,714
Purchased In-Process Research And Development
Intangible assets with indefinite lives:
Total intangible assets with indefinite lives	11,077	9,215
Patents And Trademarks
Intangible assets with definite lives:
Finite-lived intangible assets, gross	39,198	40,417
Less accumulated amortization	(24,826)	(24,808)
Finite-lived intangible assets, net	14,372	15,609
Customer relationships and other intangible assets
Intangible assets with definite lives:
Finite-lived intangible assets, gross	19,930	20,322
Less accumulated amortization	(12,742)	(12,685)
Finite-lived intangible assets, net	$ 7,188	$ 7,637