What companies have a $3 trillion dollar market cap?

Could you elaborate on which companies currently possess a market capitalization of $3 trillion dollars? This is a significant milestone, and understanding which enterprises have achieved such a high valuation would provide valuable insights into the current state of the financial and business landscapes. Are there any particular sectors or industries that these companies predominantly represent? Additionally, have these companies seen a consistent rise in their market caps, or have there been significant fluctuations over time? Clarifying these details would help us gain a deeper understanding of the financial performance and standing of these multi-trillion dollar entities.