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Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2022
Fair Value Disclosures [Abstract] |
Schedule of the three input levels in the hierarchy of fair value measurements | The three input levels in the hierarchy of fair value measurements are defined by the FASB generally as follows:
Input Level |  | Description of Input
Level 1 |  | Observable inputs such as quoted market prices in active markets.
Level 2 |  | Inputs other than quoted prices in active markets that are either directly or indirectly observable.
Level 3 |  | Unobservable inputs in which little or no market data exists.
Schedule of carrying amounts and estimated fair values of long-term debt, excluding capital lease obligations, and input levels to determine fair values | The following table presents the carrying amounts and estimated fair values of our financial assets and liabilities as of December 31, 2022:
|  |  |  | As of December 31, 2022 |  | As of December 31, 2021
|  | Input Level |  | Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
|  |  |  | (Dollars in millions)
Equity securities(1) |  | 1 |  | $ | 22 |  |  | 22 |  |  | — |  |  | — |
Long-term debt, excluding finance lease and other obligations(2) |  | 2 |  | $ | 20,255 |  |  | 17,309 |  |  | 28,635 |  |  | 29,221 |
Interest rate swap contracts (see Note 15) |  | 2 |  | — |  |  | — |  |  | 25 |  |  | 25 |
Indemnifications related to the sale of the Latin American business |  | 3 |  | 86 |  |  | 86 |  |  | — |  |  | — |
______________________________________________________________________ (1)For the year ended December 31, 2022, we recognized $109 million of loss on equity securities in other (expense) income, net in our consolidated statements of operations. (2)As of December 31, 2021, these amounts excluded $1.4 billion of carrying amount and $1.6 billion of fair value of debt that had been classified as held for sale related to our divestiture of the ILEC business on October 3, 2022. See Note 2—Divestitures of the Latin American and ILEC Businesses and Planned Divestiture of the EMEA Business for more information.
Investments held at net asset value |
| As of December 31, 2022 |  | As of December 31, 2021
| Net Asset Value
| (Dollars in millions)
Investment in limited partnership(1) | $ | 85 |  |  | 299 |
______________________________________________________________________ (1)For the years ended December 31, 2022 and December 31, 2021, we recognized $83 million of loss on investment and $138 million of gain on investment, respectively, reflected in other income (expense), net in our consolidated statement of operations.

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI https://asc.fasb.org/extlink&oid=123594938&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of investments in certain entities that calculate net asset value per share or equivalent measured at fair value on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=SL6742756-110258 + Details
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