https://www.reuters.com/article/us-uber-investment-buffett/buffett-proposed-to-invest-3-billion-in-uber-but-talks-failed-bloomberg-idUSKCN1IV2RH >Billionaire investor Warren Buffett had proposed to invest $3 billion in Uber Technologies Inc [UBER.UL] earlier this year, but the talks failed following disagreements over the terms and size of the deal, Bloomberg reported on Wednesday, citing people familiar with the matter.