During 2023, we established a captive insurance program to supplement the insurance coverage of the officers, directors, employees and agents of the Company, its subsidiaries and our general partner, in addition to our established commercial insurance program. We hold assets in a protected cell, which we are the primary beneficiary of, and therefore consolidate the protected cell. At September 30, 2024, total assets related to the protected cell were $107 million, and included in restricted cash in the condensed consolidated balance sheet.
Reclassifications
Certain reclassifications from the prior year presentation have been made to conform to the current year presentation, which did not have an impact on previously reported net income and equity and are not deemed material.
Fair Value of Financial Instruments
The carrying values of cash and cash equivalents, cash held at consolidated affiliated partnerships and restricted cash, accounts receivable, due from brokers, accounts payable, accrued expenses and other liabilities and due to brokers are deemed to be reasonable estimates of their fair values because of their short-term nature. See Note 5, “Investments,” and Note 6, “Fair Value Measurements,” for a detailed discussion of our investments and other non-financial assets and/or liabilities.
The fair value of our long-term debt is based on the quoted market prices for the same or similar issues or on the current rates offered to us for debt of the same remaining maturities. The carrying value and estimated fair value of our long-term debt as of September 30, 2024 was approximately $6.4 billion and $6.3 billion, respectively. The carrying value and estimated fair value of our long-term debt as of December 31, 2023 was approximately $7.2 billion and $6.9 billion, respectively.
Cash Flow
Cash and cash equivalents and restricted cash and restricted cash equivalents on our condensed consolidated statements of cash flows is comprised of (i) cash and cash equivalents and (ii) cash held at consolidated affiliated partnerships and restricted cash.
Cash Held at Consolidated Affiliated Partnerships and Restricted Cash
Our cash held at consolidated affiliated partnerships balance was $808 million and $1,068 million as of September 30, 2024 and December 31, 2023, respectively. Cash held at consolidated affiliated partnerships relates to our Investment segment and consists of cash and cash equivalents held by the Investment Funds that, although not legally restricted, are not used for the general operating needs of the Investment segment or Icahn Enterprises.
Our restricted cash balance was $1,632 million and $1,927 million as of September 30, 2024 and December 31, 2023, respectively. Restricted cash includes, but is not limited to, our Investment segment’s cash pledged and held for margin requirements on derivative transactions and cash held related to our captive insurance program.
Revenue From Contracts With Customers and Contract Balances
Due to the nature of our business, we derive revenue from various sources in various industries. With the exception of all of our Investment segment’s and our Holding Company’s revenues, and our Real Estate segment’s and Automotive segment’s leasing revenue, our revenue is generally derived from contracts with customers in accordance with U.S. GAAP. Such revenue from contracts with customers is included in net sales and other revenues from operations in the condensed consolidated statements of operations, however, our Real Estate segment’s and Automotive segment’s leasing revenue, as disclosed in Note 11, “Leases,” is also included in other revenues from operations. Related contract assets are included in accounts receivable, net or other assets and related contract liabilities are included in accrued expenses and other liabilities in the condensed consolidated balance sheets. Our disaggregation of revenue information includes our net sales and other revenues from operations for each of our reporting segments as well as additional disaggregation of revenue information for our Energy and Automotive segments. See Note 14, “Segment Reporting,” for our complete disaggregation of revenue information. In addition, we disclose additional information with respect to revenue from contracts with customers and contract balances for our Energy and Automotive segments below.