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Debt and Credit Agreements | 12 Months Ended
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Dec. 31, 2023
Debt Disclosure [Abstract] |
Debt and Credit Agreements | Debt and Credit Agreements Debt at December 2023 and December 2022 is shown in the table below. For information regarding the fair value of debt, see Note 13, Fair Value Measurements.
| Maturity at December | Average Interest Rates at December | December | December
(Dollars in Millions) | 2023 | 2023 | 2023 | 2022
Notes | 2024-2068 | 4.2% | $ | 18,514 |  | $ | 17,877 |
Equipment Obligations(a) | 2024-2027 | 4.4% | 2 |  | 141 |
Finance Leases | 2024-2032 | 5.9% | 17 |  | 29 |
Subtotal Long-term Debt (Including Current Portion) |  |  | $ | 18,533 |  | $ | 18,047 |
Less Debt Due within One Year |  |  | (558) |  | (151) |
Long-term Debt (Excluding Current Portion) |  |  | $ | 17,975 |  | $ | 17,896 |
(a) Equipment obligations are secured by an interest in certain railroad equipment. Debt Issuance & Early Redemption of Long-term Debt On September 7, 2023, CSX issued $600 million of 5.20% notes due 2033. These notes are included in the consolidated balance sheets under long-term debt and may be redeemed by the Company at any time, subject to payment of certain make-whole premiums. In July 2022, CSX issued $950 million aggregate principal amount of 4.10% notes due 2032, $900 million aggregate principal amount of 4.50% notes due 2052 and $150 million aggregate principal amount of 4.65% notes due 2068. The 2068 notes are a reopening of existing notes originally issued in February 2018. These notes are included in the consolidated balance sheets under long-term debt and may be redeemed by the Company at any time, subject to payment of certain make-whole premiums. In July 2021, finance lease obligations and debt totaling $68 million were assumed related to the Company's acquisition of Quality Carriers on July 1, 2021. No debt was issued in 2021. The net proceeds from debt issuances will be used for general corporate purposes, which may include debt repayments, repurchases of CSX’s common stock, capital investment and working capital requirements. For more information regarding a non-cash debt transaction with a related party, see Note 15, Investment in Affiliates and Related-Party Transactions. NOTE 10. Debt and Credit Agreements, continued Long-term Debt Maturities (Net of Discounts, Premiums and Issuance Costs)
(Dollars in Millions) | Maturities at
Years Ending | December 2023
2024 | $ | 558 |
2025 | 606 |
2026 | 704 |
2027 | 998 |
2028 | 1,001 |
Thereafter | 14,666 |
Total Long-term Debt Maturities, including current portion | $ | 18,533 |
Interest Rate Derivatives Fair Value Hedges In fourth quarter 2023, CSX entered into two separate fixed-to-floating interest rate swaps classified as fair value hedges. The swaps are designed to hedge 10 years of interest rate risk associated with market fluctuations attributable to the Secured Overnight Financing Rate ("SOFR") on a cumulative $250 million of fixed rate outstanding notes which are due in 2033. The cumulative fair value of these swaps, which is included in other long-term assets on the consolidated balance sheet, was an asset of $19 million as of December 31, 2023. In first quarter 2022, CSX entered into five separate fixed-to-floating interest rate swaps classified as fair value hedges. The swaps are designed to hedge 10 years of interest rate risk associated with market fluctuations attributable to the SOFR on a cumulative $800 million of fixed rate outstanding notes which are due between 2036 and 2040. The cumulative fair value of these swaps which is included in other long-term liabilities on the consolidated balance sheet, was a liability of $107 million and $118 million as of December 31, 2023, and December 31, 2022, respectively. The 2022 swaps will expire in 2032 and the 2023 swaps will expire in 2033. If settled early, the remaining cumulative fair value adjustment to the hedged notes will be amortized over the remaining life of the associated notes. The cumulative adjustment to the hedged notes is included in long-term debt on the consolidated balance sheet as shown in the following table.
(Dollars in Millions) | December 31, 2023 | December 31, 2022
Notional Value of Hedged Notes | $ | 1,050 |  | $ | 800 |
Fair Value Asset Adjustment to Hedged Notes | 19 |  | — |
Fair Value Liability Adjustment to Hedged Notes | (107) |  | (118) |
Carrying Amount of Hedged Notes | $ | 962 |  | $ | 682 |
NOTE 10. Debt and Credit Agreements, continued Gains and losses resulting from changes in fair value of the interest rate swaps offset changes in the fair value of the hedged portion of the underlying debt with no gain or loss recognized due to hedge ineffectiveness. The difference in the net fixed-to-float interest settlement on the derivatives is recognized in interest expense and is summarized as follows.
(Dollars in Millions) | 2023 | 2022 | 2021
Interest Expense Impact (Increase) Decrease | $ | (28) |  | $ | (1) |  | N/A
Cash Flow Hedges In 2020, the Company executed forward starting interest rate swaps, classified as cash flow hedges, with aggregate notional value of $500 million. These swaps were effected to hedge the benchmark interest rate associated with future interest payments related to the anticipated refinancing of $850 million of 3.25% notes due in 2027. In accordance with the Derivatives and Hedging Topic in the ASC, the Company has designated these swaps as cash flow hedges. Under the terms of the Adjustable Interest Rate (LIBOR) Act, the reference rate on the swaps were automatically replaced with daily compounded SOFR plus the fallback spread on July 1, 2023, the LIBOR replacement date. In fourth quarter 2022, CSX settled a portion equal to $160 million notional value of the aggregate $500 million cash flow hedges, which resulted in CSX receiving a cash payment of $52 million included in other operating activities on the consolidated cash flow statement. In second quarter 2023, CSX executed a partial settlement equal to $113 million notional value of the cash flow hedges, which resulted in CSX receiving a cash payment of $44 million. In third quarter 2023, CSX partially settled an additional $113 million notional value of the cash flow hedges and received a cash payment of $51 million included in other operating activities on the consolidated cash flow statement. The unsettled aggregate notional value of these swaps was $114 million and $340 million as of December 31, 2023, and December 31, 2022, respectively. As of December 31, 2023 and 2022, the asset value of the forward starting interest rate swaps was $48 million and $127 million, respectively, and was recorded in other long-term assets on the consolidated balance sheet. Unrealized gains or losses associated with changes in the fair value of the hedge are recorded net of tax in accumulated other comprehensive income (“AOCI”) on the consolidated balance sheet. The unrealized gain associated with the settled portion of the hedges will continue to be classified in AOCI until the associated debt instrument is issued in the future. Unless settled early, the remainder of the swaps will expire in 2027 and the unrealized gain or loss in AOCI will be recognized in earnings as an adjustment to interest expense over the same period during which the hedged transaction affects earnings. Unrealized amounts related to the hedge, recorded net of tax in other comprehensive income, are summarized in the table below.
(Dollars in Millions) | 2023 | 2022 | 2021
Unrealized Gain - Net | $ | — |  | $ | 80 |  | $ | 8 |
See Note 13, Fair Value Measurements, and Note 16, Other Comprehensive Income (Loss), for other information about the Company's hedges. NOTE 10. Debt and Credit Agreements, continued Credit Facilities In February 2023, CSX replaced its existing $1.2 billion unsecured revolving credit facility with a new $1.2 billion unsecured, revolving credit facility backed by a diverse syndicate of banks. This facility allows same-day borrowings at floating interest rates, based on SOFR or an agreed-upon replacement reference rate, plus a spread that depends upon CSX's senior unsecured debt ratings. This facility expires in February 2028. As of December 31, 2023, the Company had no outstanding balances under this facility. Commitment fees and interest rates payable under the facility were similar to fees and rates available to comparably rated investment-grade borrowers. As of December 31, 2023, CSX was in compliance with all covenant requirements under the facility. Commercial Paper Under its commercial paper program, which is backed by the revolving credit facility, the Company may issue unsecured commercial paper notes up to a maximum aggregate principal amount of $1.0 billion. Proceeds from issuances of the notes are expected to be used for general corporate purposes. At December 31, 2023, the Company had no commercial paper outstanding.

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- Definition The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(c)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 470 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//470/tableOfContent Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1C -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1C -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1C -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1E -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1I -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1I -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1I -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I + Details
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