Retirement Plans (Tables)

6 Months Ended

Nov. 30, 2021

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
	2021			2020		2021			2020
Defined benefit pension plans, net	$	(2	)	$	27	$	(5	)	$	52
Defined contribution plans		171			153		351			311
Postretirement healthcare plans		23			20		45			41
Retirement plans MTM net loss		260			52		260			52
	$	452		$	252	$	651		$	456

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
	2021			2020			2021			2020			2021		2020
Service cost	$	208		$	212		$	14		$	26		$	12	$	11
Other retirement plans expense (income):
Interest cost		255			239			7			11			11		9
Expected return on plan assets		(477	)		(446	)		(6	)		(13	)		—		—
Amortization of prior service credit and other		(2	)		(2	)		(1	)		—			—		—
MTM net loss		36			—			224			52			—		—
		(188	)		(209	)		224			50			11		9
	$	20		$	3		$	238		$	76		$	23	$	20

	Six Months Ended
	U.S. Pension Plans						International Pension Plans						Postretirement Healthcare Plans
	2021			2020			2021			2020			2021		2020
Service cost	$	416		$	425		$	29		$	49		$	24	$	22
Other retirement plans expense (income):
Interest cost		511			479			19			21			21		19
Expected return on plan assets		(955	)		(892	)		(20	)		(25	)		—		—
Amortization of prior service credit and other		(4	)		(4	)		(1	)		(1	)		—		—
MTM net loss		36			—			224			52			—		—
		(412	)		(417	)		222			47			21		19
	$	4		$	8		$	251		$	96		$	45	$	41