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DEBT AND FINANCING ARRANGEMENTS - Additional Information (Details) £ in Millions |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
May 28, 2024 USD ($) | May 22, 2024 USD ($) series | Dec. 31, 2024 USD ($) tranche issuance credit_agreement | Dec. 31, 2023 USD ($) | Dec. 31, 2024 EUR (€) tranche issuance credit_agreement | Dec. 31, 2024 GBP (£) tranche issuance credit_agreement | Nov. 11, 2024 USD ($) | Sep. 03, 2024 USD ($) | May 21, 2024 USD ($) | May 21, 2024 CAD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 21,487,000,000 |  |  |  |  |  |  |
Outstanding letters of credit |  |  | 1,700,000,000 |  |  |  |  |  |  |
Surety bonds written |  |  | $ 1,800,000,000 |  |  |  |  |  |  |
Number of credit agreements | credit_agreement |  |  | 2 |  | 2 | 2 |  |  |  |
Covenants limit the amount of secured indebtedness that we may incur, and limit the amount of attributable debt in sale-leaseback transactions, to percentage of net tangible assets |  |  | 10.00% |  | 10.00% | 10.00% |  |  |  |
Covenants limit the amount of secured indebtedness that we may incur, and limit the amount of attributable debt in sale-leaseback transactions, net tangible assets amount |  |  | $ 4,600,000,000 |  |  |  |  |  |  |
Level 2 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Long-term debt fair value |  |  | $ 20,300,000,000 | $ 22,100,000,000 |  |  |  |  |  |
Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of series of notes | series |  | 3 |  |  |  |  |  |  |  |
Redemption price percent |  | 100.00% |  |  |  |  |  |  |  |
Callable debt noncallable period | 30 years |  |  |  |  |  |  |  |  |
Senior notes | LIBOR |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.45% |  |  |  |  |  |  |
Euro Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Number of issuances | issuance |  |  | 3 |  | 3 | 3 |  |  |  |
Commercial paper |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Short-term debt |  |  | $ 0 | 2,172,000,000 |  |  |  |  |  |
Debt instrument, face amount |  |  | 0 |  |  |  |  |  |  |
U.S. Commercial Paper Program |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Commercial paper program, authorized to borrow |  |  | 10,000,000,000.0 |  |  |  |  |  |  |
U.S. Commercial Paper Program | Commercial paper |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Short-term debt |  |  | $ 0 |  |  |  |  |  |  |
Foreign Commercial Paper Program |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Commercial paper program, authorized to borrow | € |  |  |  |  | € 5,000,000,000.0 |  |  |  |  |
2.125% notes | Canadian Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 2.125% |  | 2.125% | 2.125% |  |  | 2.125% | 2.125%
Debt instrument, face amount |  |  | $ 0 |  |  |  |  |  | $ 550,000,000 | $ 750,000,000
Long-term debt |  |  | $ 0 | 566,000,000 |  |  |  |  |  |
2.200% senior notes | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 2.20% |  | 2.20% | 2.20% |  | 2.20% |  |
Debt instrument, face amount |  |  | $ 0 |  |  |  |  | $ 400,000,000 |  |
Long-term debt |  |  | $ 0 | 400,000,000 |  |  |  |  |  |
2.800% senior notes | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 2.80% |  | 2.80% | 2.80% | 2.80% |  |  |
Debt instrument, face amount |  |  | $ 0 |  |  |  | $ 500,000,000 |  |  |
Long-term debt |  |  | $ 0 | 499,000,000 |  |  |  |  |  |
5.150% senior notes | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  | 5.15% | 5.15% |  | 5.15% | 5.15% |  |  |  |
Debt instrument, face amount |  | $ 900,000,000 | $ 900,000,000 |  |  |  |  |  |  |
Long-term debt |  |  | $ 894,000,000 | 0 |  |  |  |  |  |
5.500% senior notes | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  | 5.50% | 5.50% |  | 5.50% | 5.50% |  |  |  |
Debt instrument, face amount |  | $ 1,100,000,000 | $ 1,100,000,000 |  |  |  |  |  |  |
Long-term debt |  |  | $ 1,087,000,000 | 0 |  |  |  |  |  |
5.600% senior notes | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  | 5.60% | 5.60% |  | 5.60% | 5.60% |  |  |  |
Debt instrument, face amount |  | $ 600,000,000 | $ 600,000,000 |  |  |  |  |  |  |
Long-term debt |  |  | 590,000,000 | $ 0 |  |  |  |  |  |
Floating Rate Senior Notes Due 2074 | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage | 0.35% |  |  |  |  |  |  |  |  |
Debt instrument, face amount | $ 213,000,000 |  |  |  |  |  |  |  |  |
Conversion waiting period | 1 year |  |  |  |  |  |  |  |  |
Floating rate senior notes | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, face amount |  |  | $ 500,000,000 |  |  |  |  |  |  |
Average interest rate |  |  | 5.32% |  |  |  |  |  |  |
Floating rate senior notes maturing 2049-2073 | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Callable debt noncallable period | 30 years |  |  |  |  |  |  |  |  |
Conversion waiting period |  |  | 1 year |  |  |  |  |  |  |
Average interest rate |  |  | 4.77% | 4.75% |  |  |  |  |  |
Floating rate senior notes maturing 2049-2073 | Senior notes | Secured Overnight Financing Rate (SOFR) | Minimum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.04% |  |  |  |  |  |  |
Floating rate senior notes maturing 2049-2073 | Senior notes | Secured Overnight Financing Rate (SOFR) | Maximum |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.35% |  |  |  |  |  |  |
7.620% debentures |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Original debt amount |  |  | $ 276,000,000 |  |  |  |  |  |  |
Treasury yield, percentage |  |  | 0.05% |  | 0.05% | 0.05% |  |  |  |
7.620% debentures | Senior notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 7.62% |  | 7.62% | 7.62% |  |  |  |
5.500% notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 5.50% |  | 5.50% | 5.50% |  |  |  |
Number of tranches in debt instrument | tranche |  |  | 2 |  | 2 | 2 |  |  |  |
Pound Sterling notes not exchanged | £ |  |  |  |  |  | £ 66 |  |  |  |
5.500% notes | Pound Sterling notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 5.50% |  | 5.50% | 5.50% |  |  |  |
Debt instrument, face amount |  |  | $ 84,000,000 |  |  |  |  |  |  |
Long-term debt |  |  | $ 83,000,000 | $ 84,000,000 |  |  |  |  |  |
5.125% notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 5.125% |  | 5.125% | 5.125% |  |  |  |
Number of tranches in debt instrument | tranche |  |  | 2 |  | 2 | 2 |  |  |  |
Pound Sterling notes not exchanged | £ |  |  |  |  |  | £ 455 |  |  |  |
5.125% notes | Pound Sterling notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 5.125% |  | 5.125% | 5.125% |  |  |  |
Debt instrument, face amount |  |  | $ 572,000,000 |  |  |  |  |  |  |
Long-term debt |  |  | $ 544,000,000 | 550,000,000 |  |  |  |  |  |
5.125% notes | Pound Sterling notes | Government of United Kingdom Bond Yield |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.15% |  |  |  |  |  |  |
1.625% notes | Euro Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 1.625% |  | 1.625% | 1.625% |  |  |  |
Debt instrument, face amount |  |  | $ 732,000,000 |  | € 700,000,000 |  |  |  |  |
Long-term debt |  |  | $ 731,000,000 | 774,000,000 |  |  |  |  |  |
1.625% notes | Euro Senior Notes | German Government |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.20% |  |  |  |  |  |  |
1.000% notes | Euro Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 1.00% |  | 1.00% | 1.00% |  |  |  |
Debt instrument, face amount |  |  | $ 523,000,000 |  | € 500,000,000 |  |  |  |  |
Long-term debt |  |  | $ 521,000,000 | 551,000,000 |  |  |  |  |  |
1.000% notes | Euro Senior Notes | German Government |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.15% |  |  |  |  |  |  |
1.500% notes | Euro Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt instrument, stated interest rate percentage |  |  | 1.50% |  | 1.50% | 1.50% |  |  |  |
Debt instrument, face amount |  |  | $ 523,000,000 |  | € 500,000,000 |  |  |  |  |
Long-term debt |  |  | $ 521,000,000 | $ 551,000,000 |  |  |  |  |  |
1.500% notes | Euro Senior Notes | German Government |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.20% |  |  |  |  |  |  |
Facility Notes and Bonds Worldport Louisville Due January 2029 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Average interest rate |  |  | 3.28% | 3.31% |  |  |  |  |  |
Long-term debt |  |  | $ 149,000,000 |  |  |  |  |  |  |
Facility Notes and Bonds Airfreight Louisville Due November 2036 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Average interest rate |  |  | 3.21% | 3.29% |  |  |  |  |  |
Long-term debt |  |  | $ 42,000,000 |  |  |  |  |  |  |
Facility Notes and Bonds International Airport Dallas Fort Worth Due May 2032 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Average interest rate |  |  | 3.26% | 4.42% |  |  |  |  |  |
Long-term debt |  |  | $ 29,000,000 |  |  |  |  |  |  |
Facility Notes and Bonds, Delaware County, Pennsylvania Industrial Development Authority, Due September 2045 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Average interest rate |  |  | 3.18% | 3.26% |  |  |  |  |  |
Long-term debt |  |  | $ 100,000,000 |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2024 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Revolving credit facilities |  |  | $ 1,000,000,000 |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2024 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.10% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2024 | Base Rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.70% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2024 | Federal funds effective rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.50% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2024 | Adjusted Term Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 1.00% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2026 |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Revolving credit facilities |  |  | $ 2,000,000,000 |  |  |  |  |  |  |
Line of credit facility, fair value of amount outstanding |  |  | $ 0 |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2026 | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.10% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2026 | Base Rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.70% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2026 | Federal funds effective rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 0.50% |  |  |  |  |  |  |
Revolving Credit Facility Expiring in 2026 | Adjusted Term Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Applicable margin rates |  |  | 1.00% |  |  |  |  |  |  |

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- Definition Tangible asset calculation used in debt covenant compliance test. + References No definition available. + Details
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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481139/470-20-50-4 + Details
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