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DEBT AND FINANCING ARRANGEMENTS | 12 Months Ended
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Dec. 31, 2024
Debt Disclosure [Abstract] |
DEBT AND FINANCING ARRANGEMENTS | NOTE 9. DEBT AND FINANCING ARRANGEMENTS The carrying value of our outstanding debt obligations, as of December 31, 2024 and 2023 consists of the following (in millions):
| Principal |  |  |  | Carrying Value
| Amount |  | Maturity |  | 2024 |  | 2023
Commercial paper | $ | — |  |  |  |  | $ | — |  |  | $ | 2,172 |
Fixed Rate senior notes: |  |  |  |  |  |  |
2.800% senior notes | — |  |  | 2024 |  | — |  |  | 499 |
2.200% senior notes | — |  |  | 2024 |  | — |  |  | 400 |
3.900% senior notes | 1,000 |  |  | 2025 |  | 1,000 |  |  | 999 |
2.400% senior notes | 500 |  |  | 2026 |  | 499 |  |  | 499 |
3.050% senior notes | 1,000 |  |  | 2027 |  | 997 |  |  | 996 |
3.400% senior notes | 750 |  |  | 2029 |  | 748 |  |  | 747 |
2.500% senior notes | 400 |  |  | 2029 |  | 398 |  |  | 398 |
4.450% senior notes | 750 |  |  | 2030 |  | 746 |  |  | 745 |
4.875% senior notes | 900 |  |  | 2033 |  | 895 |  |  | 894 |
5.150% senior notes | 900 |  |  | 2034 |  | 894 |  |  | — |
6.200% senior notes | 1,500 |  |  | 2038 |  | 1,486 |  |  | 1,485 |
5.200% senior notes | 500 |  |  | 2040 |  | 495 |  |  | 494 |
4.875% senior notes | 500 |  |  | 2040 |  | 492 |  |  | 491 |
3.625% senior notes | 375 |  |  | 2042 |  | 369 |  |  | 369 |
3.400% senior notes | 500 |  |  | 2046 |  | 492 |  |  | 492 |
3.750% senior notes | 1,150 |  |  | 2047 |  | 1,138 |  |  | 1,138 |
4.250% senior notes | 750 |  |  | 2049 |  | 743 |  |  | 743 |
3.400% senior notes | 700 |  |  | 2049 |  | 689 |  |  | 689 |
5.300% senior notes | 1,250 |  |  | 2050 |  | 1,232 |  |  | 1,232 |
5.050% senior notes | 1,100 |  |  | 2053 |  | 1,083 |  |  | 1,083 |
5.500% senior notes | 1,100 |  |  | 2054 |  | 1,087 |  |  | — |
5.600% senior notes | 600 |  |  | 2064 |  | 590 |  |  | — |
Floating rate senior notes: |  |  |  |  |  |  |
Floating-rate senior notes | 1,775 |  |  | 2049-2074 |  | 1,755 |  |  | 1,545 |
Debentures: |  |  |  |  |  |  |
7.620% debentures | 276 |  |  | 2030 |  | 279 |  |  | 280 |
Pound Sterling notes: |  |  |  |  |  |  |
5.500% notes | 84 |  |  | 2031 |  | 83 |  |  | 84 |
5.125% notes | 572 |  |  | 2050 |  | 544 |  |  | 550 |
Euro Senior Notes: |  |  |  |  |  |  |
1.625% notes | 732 |  |  | 2025 |  | 731 |  |  | 774 |
1.000% notes | 523 |  |  | 2028 |  | 521 |  |  | 551 |
1.500% notes | 523 |  |  | 2032 |  | 521 |  |  | 551 |
Canadian Senior Notes: |  |  |  |  |  |  |
2.125% notes | — |  |  | 2024 |  | — |  |  | 566 |
Finance lease obligations (see Note 11) | 455 |  |  | 2025-2118 |  | 455 |  |  | 472 |
Facility notes and bonds | 320 |  |  | 2029-2045 |  | 320 |  |  | 320 |
Other debt | 2 |  |  | 2025-2026 |  | 2 |  |  | 6 |
Total debt | $ | 21,487 |  |  |  |  | $ | 21,284 |  |  | $ | 22,264 |
Less: current maturities |  |  |  |  | (1,838) |  |  | (3,348) |
Long-term debt |  |  |  |  | $ | 19,446 |  |  | $ | 18,916 |
Commercial Paper We are authorized to borrow up to $10.0 billion under a U.S. commercial paper program and €5.0 billion (in a variety of currencies) under a European commercial paper program. There was no commercial paper outstanding as of December 31, 2024. The amount of commercial paper outstanding under these programs in 2025 is expected to fluctuate. Debt Classification We have classified certain floating-rate senior notes that are redeemable at the option of the note holder as long-term debt in our consolidated balance sheets, due to our intent and ability to refinance the debt if the put option is exercised. Debt Repayments On May 21, 2024, our 2.125% Canadian Dollar senior notes with a principal balance of C$750 million ($550 million) matured and were repaid in full. On September 3, 2024, our 2.200% senior notes with a principal balance of $400 million matured and were repaid in full. On November 11, 2024, our 2.800% senior notes with a principal balance of $500 million matured and were repaid in full. Debt Issuances On May 22, 2024 we issued three series of notes in the principal amounts of $900 million, $1.1 billion and $600 million. These notes bear interest at 5.150%, 5.500% and 5.600%, respectively, and mature on May 22, 2034, May 22, 2054 and May 22, 2064, respectively. Interest on the notes is payable semi-annually. Each series of notes is callable at our option at a redemption price equal to the greater of 100% of the principal amount, or the sum of the present values of scheduled payments of principal and interest, plus accrued and unpaid interest. On May 28, 2024 we issued floating rate senior notes with a principal balance of $213 million. These notes bear interest at a rate equal to the compounded Secured Overnight Financing Rate ("SOFR") less 0.350% per year and mature on June 1, 2074. Interest on the notes is payable quarterly. These notes are callable at various times after 30 years at a stated percentage of par value and are redeemable at the option of the note holders at various times after one year at a stated percentage of par value. Fixed-Rate Senior Notes Our fixed-rate notes pay interest semi-annually and allow for redemption by us at any time by paying the greater of the principal amount or a "make-whole" amount, plus accrued interest. Reference Rate Reform Our floating-rate senior notes that mature between 2049 and 2067 initially bore interest at rates that referenced the London Interbank Offer Rate ("LIBOR") for U.S. Dollars. As part of a broader program of reference rate reform, U.S. Dollar LIBOR rates ceased to be published after June 2023. Beginning July 1, 2023, we transitioned these notes to an alternative reference rate, SOFR, which was adopted in accordance with recommendations of the Alternative Reference Rates Committee. Floating-Rate Senior Notes We had floating-rate senior notes in the principal amount of $500 million that matured in 2023. These notes bore interest at three-month LIBOR plus a spread of 45 basis points. The average interest rate on these notes for 2023 was 5.32%. Our outstanding floating-rate senior notes with principal amounts totaling $1.8 billion bear interest at either thirty-day, ninety-day or compounded SOFR, less a spread ranging from 4 to 35 basis points. These notes have maturities ranging from 2049 through 2074. Interest is payable monthly for notes maturing through 2053 and quarterly for notes maturing from 2064 through 2074. The average interest rate on the outstanding floating-rate senior notes for 2024 and 2023 was 4.77% and 4.75%, respectively. These notes are callable at various times after 30 years at a stated percentage of par value, and redeemable at the option of the note holders at various times after one year at a stated percentage of par value. We have classified these floating-rate senior notes as long-term liabilities in our consolidated balance sheets, due to our intent and ability to refinance the debt if the put option is exercised. 7.620% Debentures The $276 million debentures have a maturity of April 1, 2030. These debentures are redeemable in whole or in part at any time at our option. The redemption price is equal to the greater of the principal amount plus accrued interest, or the present value of remaining scheduled payments of principal and interest thereon discounted to the date of redemption at a benchmark treasury yield plus five basis points, plus accrued interest. Interest is payable semi-annually in April and October, and the debentures are not subject to sinking fund requirements. Pound Sterling Notes The Pound Sterling notes consist of two separate tranches, as follows: •Notes with a principal amount of £66 million accrue interest at a fixed rate of 5.50% and are due in February 2031. Interest is payable semi-annually and these notes are not callable. •Notes with a principal amount of £455 million accrue interest at a fixed rate of 5.125% and are due in February 2050. Interest is payable semi-annually. These notes are callable at our option at a redemption price equal to the greater of the principal amount plus accrued interest, or the present value of the remaining scheduled payments of principal and interest thereon discounted to the date of redemption at a benchmark U.K. government bond yield plus 15 basis points, plus accrued interest. Euro Senior Notes The Euro notes consist of three separate issuances, as follows: •Notes with a principal amount of €700 million accrue interest at a fixed rate of 1.625% and are due in November 2025. Interest is payable annually. These notes are callable at our option at a redemption price equal to the greater of the principal amount, or the present value of the remaining scheduled payments of principal and interest thereon discounted to the date of redemption at a benchmark German government bond yield plus 20 basis points, plus accrued interest. •Notes with a principal amount of €500 million accrue interest at a fixed rate of 1.00% and are due in November 2028. Interest is payable annually. These notes are callable at our option at a redemption price equal to the greater of the principal amount, or the present value of the remaining scheduled payments of principal and interest thereon discounted to the date of redemption at a benchmark comparable German government bond yield plus 15 basis points, plus accrued interest. •Notes with a principal amount of €500 million accrue interest at a fixed rate of 1.50% and are due in November 2032. Interest is payable annually. The notes are callable at our option at a redemption price equal to the greater of the principal amount, or the present value of the remaining scheduled payments of principal and interest thereon discounted to the date of redemption at a benchmark comparable government bond yield plus 20 basis points, plus accrued interest. Finance Lease Obligations We have certain property, plant and equipment subject to finance leases. For additional information on finance lease obligations, see note 11. Facility Notes and Bonds We have entered into agreements with certain municipalities or related entities to finance the construction of, or improvements to, facilities that support our operations in the United States. These facilities are located around airport properties in Louisville, Kentucky; Dallas, Texas; and Philadelphia, Pennsylvania. Under these arrangements, we enter into a lease or loan agreement that covers the debt service obligations on the bonds issued by these entities, as follows: •Bonds with a principal balance of $149 million issued by the Louisville Regional Airport Authority associated with our Worldport facility in Louisville, Kentucky. The bonds are due in January 2029 and bear interest at a variable rate that is payable monthly. The average interest rates for 2024 and 2023 were 3.28% and 3.31%, respectively. •Bonds with a principal balance of $42 million issued by the Louisville Regional Airport Authority associated with our airfreight facility in Louisville, Kentucky. The bonds are due in November 2036 and bear interest at a variable rate that is payable monthly. The average interest rates for 2024 and 2023 were 3.21% and 3.29%, respectively. •Bonds with a principal balance of $29 million issued by the Dallas/Fort Worth International Airport Facility Improvement Corporation associated with our Dallas, Texas airport facilities. The bonds are due in May 2032 and bear interest at a variable rate that is payable quarterly. The average interest rates for 2024 and 2023 were 3.26% and 4.42%, respectively. •Bonds with a principal balance of $100 million issued by the Delaware County, Pennsylvania Industrial Development Authority associated with our Philadelphia, Pennsylvania airport facilities. These bonds are due in September 2045 and bear interest at a variable rate that is payable monthly. The average interest rates for 2024 and 2023 were 3.18% and 3.26%, respectively. Contractual Commitments The following table sets forth the aggregate annual principal payments on our long-term debt and our projected aggregate annual purchase commitments (in millions):
Year | Debt Principal |  | Purchase Commitments (1)
2025 | $ | 1,732 |  |  | $ | 2,925 |
2026 | 500 |  |  | 2,462 |
2027 | 1,000 |  |  | 701 |
2028 | 523 |  |  | 111 |
2029 | 1,150 |  |  | 7 |
After 2029 | 16,125 |  |  | — |
Total | $ | 21,030 |  |  | $ | 6,206 |
(1) Purchase commitments include estimates of future amounts yet to be recognized in our financial statements. In addition to the purchase commitments presented above, during the first quarter of 2025 we entered into an accelerated share repurchase agreement for $1.0 billion worth of shares to be completed during the first quarter of 2025 and an agreement to purchase certain services totaling approximately $400 million to be paid over 10 years, beginning in 2025. Purchase commitments entered into after December 31, 2024 are not reflected in the table above. Purchase commitments represent contractual agreements for certain capital expenditures and pending acquisitions, that are legally binding, including contracts for aircraft, vehicles and facility construction projects. We are evaluating available financing alternatives with respect to our aircraft purchase commitments. Sources of Credit Letters of Credit As of December 31, 2024, we had outstanding letters of credit totaling approximately $1.7 billion issued in connection with our self-insurance reserves and other routine business requirements. We also issue surety bonds as an alternative to letters of credit in certain instances and, as of December 31, 2024, we had $1.8 billion of surety bonds written. Revolving Credit Facilities We maintain two credit agreements with a consortium of banks. The first of these agreements provides revolving credit facilities of $1.0 billion and expires on November 24, 2025. Amounts outstanding under this agreement bear interest at a periodic fixed rate equal to the term SOFR rate, plus 0.10% per annum and an applicable margin based on our then-current credit rating. The applicable margin from the credit pricing grid as of December 31, 2024 was 0.70%. Alternatively, a fluctuating rate of interest equal to the highest of (1) the rate of interest last quoted by The Wall Street Journal as the prime rate in the United States; (2) the Federal Funds effective rate plus 0.50%; or (3) the Adjusted Term SOFR Rate for a one month interest period plus 1.00%, may be used at our discretion. The second agreement provides revolving credit facilities of $2.0 billion and expires on November 25, 2029. Amounts outstanding under this facility bear interest at a periodic fixed rate equal to the term SOFR rate plus 0.10% per annum and an applicable margin based on our then-current credit rating. The applicable margin from the credit pricing grid as of December 31, 2024 was 0.70%. Alternatively, a fluctuating rate of interest equal to the highest of (1) the rate of interest last quoted by The Wall Street Journal as the prime rate in the United States; (2) the Federal Funds effective rate plus 0.50%; and (3) the Adjusted Term SOFR Rate for a one-month interest period plus 1.00%, plus an applicable margin, may be used at our discretion. If the credit ratings established by Standard & Poor's and Moody’s differ, the higher rating will be used, except in cases where the lower rating is two or more levels lower. In these circumstances, the rating one step below the higher rating will be used. We are also able to request advances under these facilities based on competitive bids for the applicable interest rate. There were no amounts outstanding under our revolving credit facilities as of December 31, 2024. Debt Covenants Our existing debt instruments and credit facilities subject us to certain financial covenants. As of December 31, 2024 and for all prior periods presented, we have satisfied these financial covenants. These covenants limit the amount of secured indebtedness that we may incur, and limit the amount of attributable debt in sale-leaseback transactions, to 10% of net tangible assets. As of December 31, 2024, 10% of net tangible assets is equivalent to $4.6 billion; however, we have no covered sale-leaseback transactions or secured indebtedness outstanding. We do not expect these covenants to have a material impact on our financial condition or liquidity. Fair Value of Debt Based on the borrowing rates currently available to us for long-term debt with similar terms and maturities, the fair value of long-term debt, including current maturities, was approximately $20.3 and $22.1 billion as of December 31, 2024 and 2023, respectively. We utilized Level 2 inputs in the fair value hierarchy of valuation techniques to determine the fair value of all of our debt instruments.

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