XML 93 R67.htm IDEA: XBRL DOCUMENT
v3.21.2

Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
May 31, 2021 | May 31, 2020 | May 31, 2019
Share Based Compensation Arrangement Stock Options [Abstract] |  |  |
Stock option vesting period range | one to four years |  |
Percentage of options vesting ratably over four years | 82.00% |  |
Restricted stock expiration period | ratably over a four-year period |  |
Stock-based compensation, key assumptions of valuation method | Black-Scholes |  |
Maximum term of stock options | 10 years |  |
Restricted stock granted | 335,004 | 207,012 | 149,579
Restricted stock, weighted-average fair value | $ 155.19 | $ 158.58 | $ 253.28
Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Abstract |  |  |
Total unrecognized compensation cost, net of estimated forfeitures | $ 275 |  |
Stock option remaining weighted average vesting period | 2 years |  |
Ratio Of Outstanding And Available To Grant Shares To Total Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant [Abstract] |  |  |
Ratio Of Outstanding And Available To Grant Shares To Total Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant | 10.00% |  |

X
- Definition Total outstanding and available for grant related equity compensation divided by the outstanding common and equity compensation shares and equity compensation shares available for grant. + References No definition available. + Details
Name: | fdx_RatioOfOutstandingAndAvailableToGrantSharesToOutstandingCommonAndEquityCompensationSharesAndEquityCompensationSharesAvailableForGrant
Namespace Prefix: | fdx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio Of Outstanding And Available To Grant Shares To Outstanding Common And Equity Compensation Shares And Equity Compensation Shares Available For Grant [Abstract] + References No definition available. + Details
Name: | fdx_RatioOfOutstandingAndAvailableToGrantSharesToOutstandingCommonAndEquityCompensationSharesAndEquityCompensationSharesAvailableForGrantAbstract
Namespace Prefix: | fdx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The time period after which the equity-based award restrictions expires as specified in the award agreement. + References No definition available. + Details
Name: | fdx_RestrictedStockExpirationPeriod
Namespace Prefix: | fdx_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maximum period of time an equity-based award is expected to be outstanding. + References No definition available. + Details
Name: | fdx_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedMaximumTerm
Namespace Prefix: | fdx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of pertinent provisions of share based compensation awards that have actual or potential impact upon the company's financial statements. Vesting term for the majority of stock options. + References No definition available. + Details
Name: | fdx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestingPeriod
Namespace Prefix: | fdx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share Based Compensation Arrangement Stock Options [Abstract] + References No definition available. + Details
Name: | fdx_ShareBasedCompensationArrangementStockOptionsAbstract
Namespace Prefix: | fdx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of time over which a employee's right to exercise a stock option is no longer contingent on satisfaction of a service condition. + References No definition available. + Details
Name: | fdx_StockOptionVestingPeriodRange
Namespace Prefix: | fdx_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of method used to estimate fair value of award under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsMethodUsed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration