SEGMENT INFORMATION - Results of Operations (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|
Sep. 30, 2026 |
Sep. 30, 2025 |
Sep. 30, 2026 |
Sep. 30, 2025 |
Dec. 31, 2025 |
|
| Segment Reporting [Line Items] | |||||
| Revenue | $ 22,853 | $ 21,415 | $ 66,889 | $ 64,182 | |
| Operating profit | 1,744 | 1,804 | 3,941 | 5,292 | |
| Compensation and benefits | 11,807 | 12,118 | 36,006 | 35,571 | |
| Purchased transportation | 3,275 | 2,463 | 9,226 | 7,715 | |
| Other pension income (expense) | 67 | 47 | 200 | 122 | |
| Interest expense | (289) | (291) | (827) | (751) | |
| Income Before Income Taxes | 1,571 | 1,607 | 3,456 | 4,792 | |
| Depreciation and amortization | 965 | 926 | 2,930 | 2,774 | |
| Assets | 72,719 | 72,719 | $ 73,090 | ||
| Investment income and other | 49 | 47 | 142 | 129 | |
| Operating Segments | |||||
| Segment Reporting [Line Items] | |||||
| Revenue | 19,872 | 18,893 | 58,511 | 56,294 | |
| Operating profit | 1,652 | 1,279 | 3,353 | 4,487 | |
| Reconciliation | |||||
| Segment Reporting [Line Items] | |||||
| Revenue | 2,981 | 2,522 | 8,378 | 7,888 | |
| Operating profit | 92 | 525 | 588 | 805 | |
| Depreciation and amortization | 111 | 92 | 328 | 270 | |
| Assets | 12,341 | 12,341 | 12,693 | ||
| Unallocated items | |||||
| Segment Reporting [Line Items] | |||||
| Assets | 4,479 | 4,479 | 3,824 | ||
| U.S. Domestic Package Segment | Operating Segments | |||||
| Segment Reporting [Line Items] | |||||
| Revenue | 14,865 | 14,220 | 43,920 | 42,763 | |
| Compensation | 4,890 | 5,000 | 14,458 | 15,001 | |
| Benefits | 4,236 | 4,462 | 13,490 | 12,811 | |
| Other segment item | 4,833 | 4,155 | 14,535 | 12,453 | |
| Operating profit | 906 | 603 | 1,437 | 2,498 | |
| Depreciation and amortization | 662 | 619 | 2,025 | 1,878 | |
| Assets | 37,637 | 37,637 | 38,359 | ||
| International Segment | Operating Segments | |||||
| Segment Reporting [Line Items] | |||||
| Revenue | 5,007 | 4,673 | 14,591 | 13,531 | |
| Other segment item | 2,170 | 1,962 | 6,468 | 5,706 | |
| Operating profit | 746 | 676 | 1,916 | 1,989 | |
| Compensation and benefits | 1,017 | 1,017 | 3,094 | 2,969 | |
| Purchased transportation | 1,074 | 1,018 | 3,113 | 2,867 | |
| Depreciation and amortization | 192 | $ 215 | 577 | $ 626 | |
| Assets | $ 18,262 | $ 18,262 | $ 18,214 | ||
| X | ||||||||||
- Definition Investment Income And Other No definition available.
|
| X | ||||||||||
- Definition Other Pension Income (Expense) No definition available.
|
| X | ||||||||||
- Definition Purchased Transportation No definition available.
|
| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Other employee benefit expense includes, but is not limited to, service component of net periodic benefit cost for defined benefit plan. Excludes compensation cost in cost of good and service sold. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of expense for employee benefit and equity-based compensation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of interest expense classified as nonoperating. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of expense for salary, wage, profit sharing; incentive and equity-based compensation; and other employee benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of other expense (income) and loss (gain) calculated as difference between segment revenue and separately disclosed expense category to arrive at segment profit (loss). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|