Business Segment Information (Details) - USD ($)
$ in Millions |
3 Months Ended |
6 Months Ended |
Nov. 30, 2016 |
Nov. 30, 2015 |
Nov. 30, 2016 |
Nov. 30, 2015 |
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
$ 14,931
|
$ 12,453
|
$ 29,594
|
$ 24,732
|
| Operating Income |
1,167
|
1,137
|
2,431
|
2,281
|
| FedEx Express Segment [Member] |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
6,743
|
6,588
|
13,399
|
13,179
|
| Operating Income |
636
|
622
|
1,260
|
1,167
|
| TNT Express Segment [Member] |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
1,899
|
|
3,703
|
|
| Operating Income |
70
|
|
56
|
|
| FedEx Ground Segment [Member] |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
4,419
|
4,050
|
8,709
|
7,880
|
| Operating Income |
465
|
526
|
1,075
|
1,063
|
| FedEx Freight Segment [Member] |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
1,597
|
1,547
|
3,255
|
3,148
|
| Operating Income |
88
|
101
|
223
|
233
|
| FedEx Services Segment [Member] |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
414
|
403
|
809
|
793
|
| Eliminations, corporate and other |
|
|
|
|
| Segment Reporting Information [Line Items] |
|
|
|
|
| Revenues |
(141)
|
(135)
|
(281)
|
(268)
|
| Operating Income |
$ (92)
|
$ (112)
|
$ (183)
|
$ (182)
|