Retirement Plans (Tables)

9 Months Ended

Feb. 28, 2022

Retirement Plan Tables [Abstract]

Schedule of Retirement Plan Costs

Our retirement plans costs for the periods ended February 28 were as follows (in millions):

	Three Months Ended				Nine Months Ended
	2022		2021		2022			2021
Defined benefit pension plans, net	$	2	$	20	$	(3	)	$	72
Defined contribution plans		226		182		577			493
Postretirement healthcare plans		22		21		67			62
Retirement plans MTM net loss		—		—		260			52
	$	250	$	223	$	901		$	679

Schedule of Net Periodic Benefit Cost

Net periodic benefit cost of the pension and postretirement healthcare plans for the periods ended February 28 included the following components (in millions):

	Three Months Ended
	U.S. Pension Plans						International Pension Plans						Postretirement Healthcare Plans
	2022			2021			2022			2021			2022		2021
Service cost	$	209		$	213		$	14		$	19		$	12	$	11
Other retirement plans expense (income):
Interest cost		254			240			8			10			10		10
Expected return on plan assets		(478	)		(447	)		(3	)		(13	)		—		—
Amortization of prior service credit and other		(1	)		(2	)		(1	)		—			—		—
		(225	)		(209	)		4			(3	)		10		10
	$	(16	)	$	4		$	18		$	16		$	22	$	21

	Nine Months Ended
	U.S. Pension Plans						International Pension Plans						Postretirement Healthcare Plans
	2022			2021			2022			2021			2022		2021
Service cost	$	625		$	638		$	43		$	68		$	36	$	33
Other retirement plans expense (income):
Interest cost		765			719			27			31			31		29
Expected return on plan assets		(1,433	)		(1,339	)		(23	)		(38	)		—		—
Amortization of prior service credit and other		(5	)		(6	)		(2	)		(1	)		—		—
MTM net loss		36			—			224			52			—		—
		(637	)		(626	)		226			44			31		29
	$	(12	)	$	12		$	269		$	112		$	67	$	62