XML 42 R38.htm IDEA: XBRL DOCUMENT
v3.20.1

Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Feb. 29, 2020 | Feb. 28, 2019 | Feb. 29, 2020 | Feb. 28, 2019
Income Taxes [Line Items] |  |  |  |
Effective tax rate | 25.00% | 20.60% | 18.50% | 21.80%
Benefit from reduction of valuation allowance on tax loss carryforwards |  |  | $ 133 | $ 90
Income tax benefit from accelerated deductions to be claimed on 2018 tax return |  |  |  | 60
Netherlands [Member] |  |  |  |
Income Taxes [Line Items] |  |  |  |
Expense from the impact on deferred taxes attributable to a lower enacted tax rate |  |  |  | $ 50

X
- Definition Expense Impact on deferred taxes attributable to lower enacted tax rate. + References No definition available. + Details
Name: | fdx_ExpenseImpactOnDeferredTaxesAttributableToLowerEnactedTaxRate
Namespace Prefix: | fdx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Income taxes. + References No definition available. + Details
Name: | fdx_IncomeTaxesLineItems
Namespace Prefix: | fdx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tax benefit from reduction of valuation allowance on tax loss carryforwards. + References No definition available. + Details
Name: | fdx_TaxBenefitFromReductionOfValuationAllowanceOnTaxLossCarryforwards
Namespace Prefix: | fdx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
Name: | us-gaap_EffectiveIncomeTaxRateContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense (benefit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
Name: | us-gaap_IncomeTaxReconciliationPriorYearIncomeTaxes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeTaxAuthorityNameAxis=us-gaap_TaxAndCustomsAdministrationNetherlandsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |