Business Segment Information (Details 1) (USD $) In Millions	12 Months Ended
	May 31, 2011		May 31, 2010		May 31, 2009
FedEx Express Segment [Member]
Segment Reporting Information [Line Items]
Revenues	$ 24,581		$ 21,555		$ 22,364
Depreciation and amortization	1,059		1,016		961
Operating Income (Loss)	1,228	[1]	1,127		794	[1]
Segment assets	16,463	[2]	14,819	[2]	13,483	[2]
Capital expenditures	2,467		1,864		1,348
FedEx Ground Segment [Member]
Segment Reporting Information [Line Items]
Revenues	8,485		7,439		7,047
Depreciation and amortization	337		334		337
Operating Income (Loss)	1,325		1,024		807
Segment assets	5,048	[2]	4,118	[2]	3,291	[2]
Capital expenditures	426		400		636
FedEx Freight Segment [Member]
Segment Reporting Information [Line Items]
Revenues	4,911		4,321		4,415
Depreciation and amortization	205		198		224
Operating Income (Loss)	(175)	[3]	(153)		(44)	[3]
Segment assets	2,664	[2]	2,786	[2]	3,044	[2]
Capital expenditures	153		212		240
FedEx Services Segment [Member]
Segment Reporting Information [Line Items]
Revenues	1,684		1,770		1,977
Depreciation and amortization	371		408		451
Operating Income (Loss)					(810)	[4]
Segment assets	4,278	[2]	4,079	[2]	3,240	[2]
Capital expenditures	387		340		235
Other and Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(357)		(351)		(306)
Depreciation and amortization	1		2		2
Segment assets	(1,068)	[2]	(900)	[2]	1,186	[2]
Capital expenditures	1
Consolidated Total [Member]
Segment Reporting Information [Line Items]
Revenues	39,304		34,734		35,497
Depreciation and amortization	1,973		1,958		1,975
Operating Income (Loss)	2,378		1,998		747
Segment assets	27,385	[2]	24,902	[2]	24,244	[2]
Capital expenditures	$ 3,434		$ 2,816		$ 2,459

[1] FedEx Express segment 2011 operating expenses include a $66 million legal reserve associated with the ATA Airlines lawsuit, and 2009 operating expenses include a charge of $260 million primarily for aircraft-related asset impairments.

[2] Segment assets include intercompany receivables.

[3] FedEx Freight segment 2011 operating expenses include $133 million in costs associated with the combination of our FedEx Freight and FedEx National LTL operations, effective January 30, 2011, and 2009 operating expenses include a charge of $100 million primarily for impairment charges associated with goodwill related to the FedEx National LTL acquisition.

[4] FedEx Services segment 2009 operating expenses include a charge of $810 million for impairment of goodwill related to the Kinko's (now known as FedEx Office) acquisition. The normal, ongoing net operating costs of the FedEx Services segment are allocated back to the transportation segments.