v2.4.0.6

Retirement Plans (Details 3) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Nov. 30, 2011	Nov. 30, 2010
Pension Plans Contributions [Abstract]
Required U.S. retirement plan contributions	$ 226	$ 158
December 2011 U.S. Pension Plans contribution	127
Expected Quarterly Pension Contributions Remaining	$ 300

X

- Definition

The employer's contributions paid to the plan in December 2011. Contributions may be presented in the aggregate combining (1) contributions required by funding regulations or laws, (2) discretionary contributions, and (3) noncash contributions.

+ References

No definition available.

+ Details

Name:	fdx_DefinedBenefitPlanDecemberEmployerContributionsInCurrentFiscalYear
Namespace Prefix:	fdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

The amount of the expected contributions related to U.S. domestic pension plans due within the current fiscal year.

+ References

No definition available.

+ Details

Name:	fdx_ExpectedPensionsContributionsRemaining
Namespace Prefix:	fdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	fdx_PensionPlansContributionsAbstract
Namespace Prefix:	fdx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The amount of required contributions made by the employer.

+ References

No definition available.

+ Details

Name:	fdx_RequiredRetirementPlanContributionsByEmployer
Namespace Prefix:	fdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration