Leases (Details 1) (USD $) In Millions	May 31, 2011	May 31, 2010
Capital Leases Balance Sheet Assets By Major Class Net Lessee Balance Sheet Abstract
Aircraft	$ 8	$ 15
Package handling and ground support equipment	165	165
Vehicles	17	17
Other, principally facilities	145	146
Capital Leased Assets, Gross, Total	335	343
Less accumulated amortization	307	312
Capital Leased Assets, Net, Total	$ 28	$ 31

Long-lived depreciable aircraft used to produce services subject to a lease meeting the criteria for capitalization.

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Balance Type:	debit
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- Definition

Long-lived depreciable assets, including package handling and ground support equipment, used to produce services subject to a lease meeting the criteria for capitalization.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Long-lived depreciable assets, including vehicles, used to produce services subject to a lease meeting the criteria for capitalization.

+ Details

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Namespace Prefix:	fdx
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total gross amount of assets subject to a lease meeting the criteria for capitalization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 1, 10, 13

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 16
-Subparagraph a(i)

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ Details

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Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
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- Definition

The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 13

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 122

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Long-lived depreciable assets not included within other defined categories that are subject to a lease meeting the criteria for capitalization.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 16
-Subparagraph a(i)

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 13
-Paragraph 122

+ Details

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Data Type:	xbrli:monetaryItemType
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