Sam Altman has faced growing scrutiny over potential conflicts of interest tied to OpenAI business deals. (Rod Lamkey, Jr./The New York Times)

OpenAI Chief Executive Sam Altman holds more than $2 billion in companies that have done business with the artificial intelligence company, a court document showed as Altman faces claims of self-dealing from state attorneys general and Elon Musk, as well as a US congressional investigation.

The list of investments was shown in court on Tuesday in hearings on Musk’s lawsuit seeking $150 billion in damages as well as Altman’s removal as an officer and board member. Musk’s claims include breach of charitable ⁠trust and ​unjust enrichment.…