Guarantees and Indemnifications (Details) $ in Millions	May. 31, 2015 USD ($)
Guarantees [Abstract]
Guaranteed Principal Amount Of Special Facility Revenue Bonds	$ 483
Future Principal And Interest Payments For Special Facility Revenue Bonds	$ 578

The total future principal and interest payments of special facility revenue bonds issued by certain municipalities primarily to finance the acquisition and construction of various airport facilities and equipment leased to the company.

No definition available.

Name:	fdx_FuturePrincipalAndInterestPaymentsForSpecialFacilityRevenueBonds
Namespace Prefix:	fdx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant