Below are approximate amounts related to balance sheet information reported by five companies in previous years. ExxonMobil reports total assets of $200 billion and total liabilities of $93 billion. Citigroup reports total liabilities of $1,360 billion and stockholders' equity of $96 billion. Amazon.com reports total assets of $3.3 billion and total stockholders' equity of $0.16 billion. Nike reports an increase in assets of $1.06 billion and an increase in liabilities of $0.5 billion. Kellogg's reports a decrease in liabilities of $0.38 billion and an increase in stockholders' equity of $0.04 billion. (Enter your answers in billions rounded to 2 decimal places. Negative amounts should be indicated by a minus sign.) Required: What is the amount of stockholders' equity of ExxonMobil? What is the amount of total assets of Citigroup? What is the amount of total liabilities of Amazon.com? What is the amount of the change in stockholders' equity of Nike? What is the amount of the change in total assets of Kellogg's?