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Retirement Plans (Tables)
6 Months Ended
Nov. 30, 2020
Retirement Plan Tables [Abstract]  
Schedule of Retirement Plan Costs

Our retirement plans costs for the periods ended November 30 were as follows (in millions):

 

 

 

Three Months Ended

 

 

Six Months Ended

 

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

Defined benefit pension plans, net

 

$

27

 

 

$

37

 

 

$

52

 

 

$

74

 

Defined contribution plans

 

 

153

 

 

 

136

 

 

 

311

 

 

 

278

 

Postretirement healthcare plans

 

 

20

 

 

 

21

 

 

 

41

 

 

 

43

 

Retirement plan mark-to-market (“MTM”) net loss

 

 

52

 

 

 

 

 

 

52

 

 

 

 

 

 

$

252

 

 

$

194

 

 

$

456

 

 

$

395

 

Schedule of Net Periodic Benefit Cost

Net periodic benefit cost of the pension and postretirement healthcare plans for the periods ended November 30 included the following components (in millions):

 

 

 

Three Months Ended

 

 

 

U.S. Pension Plans

 

 

International Pension Plans

 

 

Postretirement Healthcare Plans

 

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

Service cost

 

$

212

 

 

$

192

 

 

$

26

 

 

$

24

 

 

$

11

 

 

$

10

 

Other retirement plans (income) expense:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    Interest cost

 

 

239

 

 

 

250

 

 

 

11

 

 

 

11

 

 

 

9

 

 

 

11

 

    Expected return on plan assets

 

 

(446

)

 

 

(401

)

 

 

(13

)

 

 

(13

)

 

 

 

 

 

 

   Amortization of prior service credit and other

 

 

(2

)

 

 

(25

)

 

 

 

 

 

(1

)

 

 

 

 

 

 

   MTM net loss

 

 

 

 

 

 

 

 

52

 

 

 

 

 

 

 

 

 

 

 

 

 

(209

)

 

 

(176

)

 

 

50

 

 

 

(3

)

 

 

9

 

 

 

11

 

 

 

$

3

 

 

$

16

 

 

$

76

 

 

$

21

 

 

$

20

 

 

$

21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Six Months Ended

 

 

 

U.S. Pension Plans

 

 

International Pension Plans

 

 

Postretirement Healthcare Plans

 

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

 

2020

 

 

2019

 

Service cost

 

$

425

 

 

$

384

 

 

$

49

 

 

$

48

 

 

$

22

 

 

$

21

 

Other retirement plans (income) expense:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

    Interest cost

 

 

479

 

 

 

500

 

 

 

21

 

 

 

22

 

 

 

19

 

 

 

22

 

    Expected return on plan assets

 

 

(892

)

 

 

(801

)

 

 

(25

)

 

 

(26

)

 

 

 

 

 

 

   Amortization of prior service credit and other

 

 

(4

)

 

 

(52

)

 

 

(1

)

 

 

(1

)

 

 

 

 

 

 

   MTM net loss

 

 

 

 

 

 

 

 

52

 

 

 

 

 

 

 

 

 

 

 

 

 

(417

)

 

 

(353

)

 

 

47

 

 

 

(5

)

 

 

19

 

 

 

22

 

 

 

$

8

 

 

$

31

 

 

$

96

 

 

$

43

 

 

$

41

 

 

$

43