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Fair Value of Financial Instruments
3 Months Ended
Mar. 31, 2022
Fair Value Disclosures [Abstract]  
Fair Value of Financial Instruments Fair Value of Financial Instruments
Our financial instruments consist of cash, cash equivalents, restricted cash, accounts receivable, accounts payable, long-term debt, excluding finance lease and other obligations, interest rate swap contracts and certain investments. Due primarily to their short-term nature, the carrying amounts of our cash, cash equivalents, restricted cash, accounts receivable and accounts payable approximate their fair values.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between independent and knowledgeable parties who are willing and able to transact for an asset or liability at the measurement date. We use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs when determining fair value and then we rank the estimated values based on the reliability of the inputs used following the fair value hierarchy.

We determined the fair values of our long-term debt, including the current portion, based on quoted market prices where available or, if not available, based on inputs other than quoted market prices in active markets that are either directly or indirectly observable such as discounted future cash flows using current market interest rates.
The three input levels in the hierarchy of fair value measurements are defined by the FASB generally as follows:

Input LevelDescription of Input
Level 1Observable inputs such as quoted market prices in active markets.
Level 2Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3Unobservable inputs in which little or no market data exists.

The following table presents the carrying amounts and estimated fair values of our financial liabilities as of March 31, 2022 and December 31, 2021:

  March 31, 2022December 31, 2021
 Input
Level
Carrying
Amount
Fair
Value
Carrying
Amount
Fair
Value
 (Dollars in millions)
Long-term debt, excluding finance lease and other obligations(1)
2$28,210 27,405 28,635 29,221 
Interest rate swap contracts (see Note 11)
2$25 25 
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(1)As of March 31, 2022 and December 31, 2021, these amounts exclude $1.4 billion of carrying amount for both periods and $1.4 billion and $1.6 billion, respectively, of fair value of debt that has been reclassified as held for sale. See Note 2—Planned Divestiture of the Latin American and ILEC Businesses for more information.

Investment Held at Net Asset Value

We hold an investment in a limited partnership that functions as a holding company for a portion of the colocation and data center business that we divested in 2017. The limited partnership solely holds investments in those entities and has sole discretion as to the amount and timing of distributions of the underlying assets. As of March 31, 2022, the underlying investments held by the limited partnership are traded in active markets and as such, we account for our investment in the limited partnership using net asset value ("NAV"). As of March 31, 2022, the limited partnership is subject to lock-up agreements that restrict the sale of certain underlying assets. The restrictions are set to terminate in 2022.

As of March 31, 2022As of December 31, 2021
Net Asset Value
(Dollars in millions)
Investment in limited partnership(1)
$365 299 
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(1)For the three months ended March 31, 2022, we recognized a $66 million gain on investment, reflected in other income, net in our consolidated statement of operations.