DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Assets and Liabilities of Supply Chain that were Classified as Assets Held for Sale (Details) - USD ($) $ in Millions	Sep. 30, 2026	May 31, 2026
Disposal Group, Including Discontinued Operations [Line Items]
Current assets of discontinued operations	$ 0	$ 1,488
Non-current assets of discontinued operations	0	5,407
Current liabilities of discontinued operations	0	998
Non-current liabilities of discontinued operations	0	$ 6,388
Discontinued Operations, Held-for-Sale \| FedEx Supply Chain
Disposal Group, Including Discontinued Operations [Line Items]
Current assets of discontinued operations	375
Non-current assets of discontinued operations	292
Current liabilities of discontinued operations	222
Non-current liabilities of discontinued operations	$ 181

DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Assets and Liabilities of Supply Chain that were Classified as Assets Held for Sale (Details) - USD ($)
$ in Millions

Sep. 30, 2026

May 31, 2026

Disposal Group, Including Discontinued Operations [Line Items]

Current assets of discontinued operations

$ 0

$ 1,488

Non-current assets of discontinued operations

5,407

Current liabilities of discontinued operations

998

Non-current liabilities of discontinued operations

$ 6,388

Discontinued Operations, Held-for-Sale | FedEx Supply Chain

Disposal Group, Including Discontinued Operations [Line Items]

Current assets of discontinued operations

375

Non-current assets of discontinued operations

292

Current liabilities of discontinued operations

222

Non-current liabilities of discontinued operations

$ 181

- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References + Details

- Definition

Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer.

+ References + Details

- 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.

+ References

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+ Details

- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

+ References + Details

- Definition

Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer.

+ References + Details