A small amount of marketable securities are held by government accounts.
For marketable securities, the length of time the security earns interest.
The rest are marketable securities, $46 billion at the end of May, the most recent tally.
General Motors, the world's biggest auto maker, had $10.9 billion in cash and marketable securities on hand at the end of last year.
The decline partly reflected lower income from the company's portfolio of marketable securities.
The 1988 results included gains of $6,451,000 on sales of marketable securities.
The money could be invested in both non-marketable and marketable securities.
The national debt can also be classified into marketable or non-marketable securities.
At the end of June, cash and marketable securities reached $23.8 billion, up from $17.2 billion a year earlier.
Bill Gates, for example, is sitting on billions of dollars and marketable securities.
