According to a regulatory filing, Elon Musk's xAI has raised $6 billion in new capital, wrapping up a funding round that has been in the works for months and was said to value the artificial intelligence startup at more than $40 billion. In another development, Britain has approved Vodafone's $19 billion merger with Hutchison's Three UK to create the country's biggest mobile operator after their investment promises outweighed concerns about higher customer bills. Watch NDTV'S The World Report for the latest updates.