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Debt and Credit Agreements | 6 Months Ended
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Jun. 30, 2018
Debt Disclosure [Abstract] |
Debt and Credit Agreements | Debt and Credit Agreements Total activity related to long-term debt as of the end of second quarter 2018 is shown in the table below. For fair value information related to the Company's long-term debt, see Note 9, Fair Value Measurements.
(Dollars in millions) | Current Portion | Long-term Portion | Total
Long-term debt as of December 31, 2017 | $ | 19 |  | $ | 11,790 |  | $ | 11,809 |
2018 activity: |  |  |
Long-term debt issued | — |  | 2,000 |  | 2,000 |
Discount, premium and other activity |  | (21 | ) | (21 | )
Long-term debt as of June 30, 2018 | $ | 19 |  | $ | 13,769 |  | $ | 13,788 |
Debt Issuance On February 20, 2018, CSX issued $800 million of 3.80% notes due 2028, $850 million of 4.30% notes due 2048, and $350 million of 4.65% notes due 2068. 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. The net proceeds will be used for general corporate purposes, which may include repurchases of CSX's common stock, capital investment, working capital requirements, improvements in productivity and other cost reductions at the Company’s major transportation units. Credit Facility CSX has a $1 billion unsecured, revolving credit facility backed by a diverse syndicate of banks. This facility expires in May 2020, and as of the date of this filing, the Company has no outstanding balances under this facility. The facility allows borrowings at floating (LIBOR-based) interest rates, plus a spread, depending upon CSX's senior unsecured debt ratings. LIBOR is the London Interbank Offered Rate which is a daily reference rate based on the interest rates at which banks offer to lend unsecured funds. Commitment fees and interest rates payable under the facility were similar to fees and rates available to comparably rated investment-grade borrowers. As of second quarter 2018, CSX was in compliance with all covenant requirements under this facility. Receivables Securitization Facility The Company has a receivables securitization facility with a three-year term scheduled to expire in September 2019. The purpose of this facility is to provide an alternative to commercial paper and a low cost source of short-term liquidity of up to $200 million, depending on eligible receivables balances. As of the date of this filing, the Company has no outstanding balances under this facility.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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