Sort the company names in descending order of the company's market value.
SELECT name FROM Companies ORDER BY Market_Value_billion DESC
SELECT name FROM Companies ORDER BY Market_Value_billion DESC
[{'name': 'Santander Group'}, {'name': 'BNP Paribas'}, {'name': 'ExxonMobil'}, {'name': 'PetroChina'}, {'name': 'Industrial and Commercial Bank of China'}, {'name': 'Petrobras'}, {'name': 'China Construction Bank'}, {'name': 'General Electric'}, {'name': 'Royal Dutch Shell'}, {'name': 'Berkshire Hathaway'}, {'name': 'Chevron'}, {'name': 'Walmart'}, {'name': 'HSBC'}, {'name': 'JPMorgan Chase'}, {'name': 'Gazprom'}, {'name': 'Wells Fargo'}, {'name': 'AT&T Inc.'}, {'name': 'Total'}, {'name': 'Citigroup'}]