Pay vs Performance Disclosure - USD ($)

12 Months Ended

May 31, 2023

May 31, 2022

May 31, 2021

Pay vs Performance Disclosure [Table]

Pay vs Performance [Table Text Block]

For further information about our compensation philosophy and the pay-for-performance nature of our executive compensation program, please see “Executive Compensation — Compensation Discussion and Analysis” beginning on page 40.

				AVERAGE SUMMARY COMPENSATION TABLE TOTAL FOR NON-CEO NEOs ($)(3)	AVERAGE COMPENSATION ACTUALLY PAID TO NON-CEO NEOs ($)(4)	VALUE OF INITIAL FIXED $100 INVESTMENT BASED ON:			ADJUSTED CONSOLIDATED OPERATING INCOME (IN MILLIONS) ($)(8)
YEAR	SUMMARY COMPENSATION TABLE TOTAL ($)(1)	COMPENSATION ACTUALLY PAID TO CEO ($)(2)				FEDEX TSR ($)(5)	DOW JONES TRANSPORTATION AVERAGE TSR ($)(6)	NET INCOME (IN MILLIONS) ($)(7)
2023	13,249,823	11,262,954		6,296,043	4,610,262	174.03	159.13	3,972	4,948
2022	10,596,150	(12,992,547	)	4,131,008	1,813,524	176.23	163.49	3,826	6,733
2021	14,325,537	94,071,332		5,783,014	17,501,378	244.15	177.82	5,231	5,587

Company Selected Measure Name

adjusted consolidated operating income

Named Executive Officers, Footnote [Text Block]

⁽¹⁾ Reflects total compensation amounts reported in the Summary Compensation Table on page 62 for Mr. Subramaniam for fiscal 2023 and Mr. Smith for fiscal 2022 and 2021.

Peer Group Issuers, Footnote [Text Block]

⁽⁶⁾ For the relevant fiscal year, represents the cumulative TSR of the Dow Jones Transportation Average (“Peer Group TSR”) for the measurement periods ending May 31, 2023, 2022, and 2021, respectively.

PEO Total Compensation Amount

$ 13,249,823

$ 10,596,150

$ 14,325,537

PEO Actually Paid Compensation Amount

$ 11,262,954

(12,992,547)

94,071,332

Adjustment To PEO Compensation, Footnote [Text Block]

YEAR	2021		2022		2023
CEO	F.W. Smith		F.W. Smith		R. Subramaniam
SCT Total Compensation ($)	14,325,537		10,596,150		13,249,823
Less: Stock and Option Award Values Reported in SCT for the Covered Year ($)	(8,784,094	)	(7,160,341	)	(5,964,153	)
Plus: Year End Fair Value for Stock and Option Awards Granted in the Covered Year ($)	55,550,840		10,728,639		9,289,396
Change in Fair Value of Outstanding Unvested Stock and Option Awards from Prior Years ($)	32,335,923		(24,237,863	)	(5,265,924	)
Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year ($)	532,670		(2,970,262	)	57,522
Less: Fair Value of Stock and Option Awards that failed to meet Vesting Conditions in the Covered Year ($)	—		—		—
Less: Aggregate Change in Actuarial Present Value of Accumulated Benefit Under Pension Plans ($)	—		—		(209,016	)
Plus: Aggregate Service Cost and Prior Service Cost for Pension Plans ($)	110,456		51,129		105,306
Compensation Actually Paid ($)	94,071,332		(12,992,547	)	11,262,954

Non-PEO NEO Average Total Compensation Amount

$ 6,296,043

4,131,008

5,783,014

Non-PEO NEO Average Compensation Actually Paid Amount

$ 4,610,262

1,813,524

17,501,378

Adjustment to Non-PEO NEO Compensation Footnote [Text Block]

YEAR	2021 AVERAGE		2022 AVERAGE		2023 AVERAGE
Non-CEO NEOs(3)
SCT Total Compensation ($)	5,783,014		4,131,008		6,296,043
Less: Stock and Option Award Values Reported in SCT for the Covered Year ($)	(2,457,868	)	(2,061,624	)	(1,670,867	)
Plus: Year End Fair Value for Stock and Option Awards Granted in the Covered Year ($)	10,553,946		4,493,642		3,070,602
Change in Fair Value of Outstanding Unvested Stock and Option Awards from Prior Years ($)	3,534,655		(4,285,180	)	(3,061,483	)
Change in Fair Value of Stock and Option Awards from Prior Years that Vested in the Covered Year ($)	250,602		(443,261	)	(41,822	)
Fair Value as of Vesting Date of Stock and Option Awards Granted and Vested in the Covered Year ($)	390,549		—		—
Fair Value of Stock and Option Awards that Failed to Meet Vesting Conditions in the Covered Year ($)	(539,799	)	—		—
Less: Aggregate Change in Actuarial Present Value of Accumulated Benefit Under Pension Plans ($)	(66,903	)	(94,867	)	(34,030	)
Plus: Aggregate Service Cost and Prior Service Cost for Pension Plans ($)	73,182		73,806		51,819
Compensation Actually Paid ($)	17,501,378		1,813,524		4,610,262

Compensation Actually Paid vs. Total Shareholder Return [Text Block]

Compensation Actually Paid vs. FedEx TSR

Compensation Actually Paid vs. Net Income [Text Block]

Compensation Actually Paid vs. GAAP Net Income

Compensation Actually Paid vs. Company Selected Measure [Text Block]

Compensation Actually Paid vs. Adjusted Consolidated
Operating Income

Total Shareholder Return Vs Peer Group [Text Block]

Cumulative TSR of the Company and Cumulative TSR of the Peer Group. The graph below shows the cumulative TSR over the three-year period for FedEx and the Dow Jones Transportation Index.

FedEx and Peer Group TSR

Tabular List [Table Text Block]

Listed below are the financial and non-financial performance measures which in our assessment represent the most important financial performance measures we used to link compensation actually paid to our named executive officers, for fiscal 2023, to company performance.

	Adjusted consolidated operating income;
	Adjusted EPS;
	CapEx/Revenue; and
	Relative TSR.

Total Shareholder Return Amount

$ 174.03

176.23

244.15

Peer Group Total Shareholder Return Amount

159.13

163.49

177.82

Net Income (Loss) Attributable to Parent

$ 3,972,000,000

$ 3,826,000,000

$ 5,231,000,000

Company Selected Measure Amount

4,948,000,000

6,733,000,000

5,587,000,000

PEO Name

Mr. Subramaniam

Mr. Smith

Mr. Smith

Measure [Axis]: 1

Pay vs Performance Disclosure [Table]

Measure Name

Adjusted consolidated operating income

Non-GAAP Measure Description [Text Block]

⁽⁸⁾ Company-selected measure is adjusted consolidated operating income, as used in our AIC plans. See “Executive Compensation — Compensation Discussion and Analysis — Compensation Elements” for a discussion of how adjusted consolidated operating income is used in our executive compensation program. See Appendix C for a reconciliation of adjusted consolidated operating income to the most directly comparable GAAP measure for fiscal 2023 and 2022. GAAP consolidated operating income was the performance measure for the fiscal 2021 AIC plan.

Measure [Axis]: 2

Pay vs Performance Disclosure [Table]

Measure Name

Adjusted EPS

Measure [Axis]: 3

Pay vs Performance Disclosure [Table]

Measure Name

CapEx/Revenue

Measure [Axis]: 4

Pay vs Performance Disclosure [Table]

Measure Name

Relative TSR

P E O Less Stock And Option Award Values Reported In S C T For The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

$ (5,964,153)

$ (7,160,341)

$ (8,784,094)

P E O Plus Fair Value For Stock And Option Awards Granted In The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

9,289,396

10,728,639

55,550,840

P E O Change In Fair Value Of Outstanding Unvested Stock And Option Awards From Prior Years [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(5,265,924)

(24,237,863)

32,335,923

P E O Change In Fair Value Of Stock And Option Awards From Prior Years That Vested In The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

57,522

(2,970,262)

532,670

P E O Less Fair Value Of Stock And Option Awards Forfeited During The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

0

0

0

P E O Less Aggregate Change In Actuarial Present Value Of Accumulated Benefit Under Pension Plans [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(209,016)

0

0

P E O Plus Aggregate Service Cost And Prior Service Cost For Pension Plans [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

105,306

51,129

110,456

Non P E O Less Stock And Option Award Values Reported In S C T For The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(1,670,867)

(2,061,624)

(2,457,868)

Non P E O Plus Fair Value For Stock And Option Awards Granted In The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

3,070,602

4,493,642

10,553,946

Non P E O Change In Fair Value Of Outstanding Unvested Stock And Option Awards From Prior Years [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(3,061,483)

(4,285,180)

3,534,655

Non P E O Change In Fair Value Of Stock And Option Awards From Prior Years That Vested In The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(41,822)

(443,261)

250,602

Non P E O Fair Value As Of Vesting Date Of Stock And Option Awards Granted And Vested In The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

0

0

390,549

Non P E O Fair Value Of Stock And Option Awards Cancelled In The Covered Year [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

0

0

(539,799)

Non P E O Less Aggregate Change In Actuarial Present Value Of Accumulated Benefit Under Pension Plans [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

(34,030)

(94,867)

(66,903)

Non P E O Plus Aggregate Service Cost And Prior Service Cost For Pension Plans [Member]

Pay vs Performance Disclosure [Table]

Adjustment to Compensation Amount

$ 51,819

$ 73,806

$ 73,182