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Fair Value Measurements | 12 Months Ended
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Dec. 31, 2023
Fair Value Disclosures [Abstract] |
Fair Value Measurements | Fair Value Measurements FASB Accounting Standards Codification (ASC) 820-10, “Fair Value Measurements,” established a framework for measuring fair value and a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels, as follows:
Level 1 | Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets that we have the ability to access.
Level 2 | Inputs to the valuation methodology include:
| • quoted prices for similar assets or liabilities in active markets, • quoted prices for identical or similar assets or liabilities in inactive markets, • inputs other than quoted prices that are observable for the asset or liability, and • inputs that are derived principally from or corroborated by observable market data by correlation or other means.
| If the asset or liability has a specified (contractual) term, the Level 2 input must be observable for substantially the full term of the asset or liability.
Level 3 | Inputs to the valuation methodology are unobservable and significant to the fair value measurement.
The asset or liability’s fair value measurement level within the hierarchy is based on the lowest level of any input that is significant to the fair value measurement. Fair Values of Financial Instruments The fair values of “Cash and cash equivalents,” “Accounts receivable – net,” “Accounts payable,” and “Short-term debt” approximate carrying values because of the short maturity of these financial instruments. The carrying value of COLI is recorded at cash surrender value and, accordingly, approximates fair value. There are no other assets or liabilities measured at fair value on a recurring basis at December 31, 2023 or 2022. The carrying amounts and estimated fair values, based on Level 1 inputs, of long-term debt consist of the following at December 31:
| 2023 |  | 2022
| Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
| ($ in millions)
Long-term debt, including current maturities | $ | (17,179) |  |  | $ | (16,631) |  |  | $ | (15,082) |  |  | $ | (13,846) |

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- Definition The entire disclosure of the fair value measurement of assets and liabilities, which includes financial instruments measured at fair value that are classified in shareholders' equity, which may be measured on a recurring or nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 820 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//820/tableOfContent + Details
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