Item 3. Quantitative and Qualitative Disclosures About Market Risk.

INVESTMENTS AND DEBT

As of September 30, 2022, we had short-term investments of $2.2 billion and long-term investments of $15.3 billion, including restricted deposits of $1.2 billion. The short-term investments generally consist of highly liquid securities with maturities between three and 12 months. The long-term investments consist of municipal, corporate and U.S. Treasury securities, government sponsored obligations, life insurance contracts, asset-backed securities, and equity securities, and have maturities greater than one year. Restricted deposits consist of investments required by various state statutes to be deposited or pledged to state agencies. Due to the nature of the states’ requirements, these investments are classified as long-term regardless of the contractual maturity date. Substantially all of our investments are subject to interest rate risk and will decrease in value if market rates increase. Assuming a hypothetical and immediate 1% increase in market interest rates at September 30, 2022, the fair value of our fixed income investments would decrease by approximately $560 million.

For a discussion of the interest rate risk that our investments are subject to, refer to our 10-K for the fiscal year ended December 31, 2021, Part 1, Item 1A, "Risk Factors – Our investment portfolio may suffer losses which could materially and adversely affect our results of operations or liquidity."