Other Comprehensive Income (Tables)

9 Months Ended

Jan. 31, 2021

Statement of Comprehensive Income [Abstract]

Comprehensive Income (Loss) [Table Text Block]

The following tables show the components of net other comprehensive income (loss):

	Three Months Ended						Three Months Ended
	January 31, 2020						January 31, 2021
(Dollars in millions)	Pre-Tax		Tax		Net		Pre-Tax		Tax		Net
Currency translation adjustments:
Net gain (loss) on currency translation	$	5	$	1	$	6	$	39	$	8	$	47
Reclassification to earnings	—		—		—		—		—		—
Other comprehensive income (loss), net	5		1		6		39		8		47
Cash flow hedge adjustments:
Net gain (loss) on hedging instruments	4		(1)		3		(39)		9		(30)
Reclassification to earnings1	(5)		1		(4)		(4)		1		(3)
Other comprehensive income (loss), net	(1)		—		(1)		(43)		10		(33)
Postretirement benefits adjustments:
Net actuarial gain (loss) and prior service cost	—		—		—		—		—		—
Reclassification to earnings2	4		(1)		3		6		(1)		5
Other comprehensive income (loss), net	4		(1)		3		6		(1)		5
Total other comprehensive income (loss), net	$	8	$	—	$	8	$	2	$	17	$	19
	Nine Months Ended						Nine Months Ended
	January 31, 2020						January 31, 2021
(Dollars in millions)	Pre-Tax		Tax		Net		Pre-Tax		Tax		Net
Currency translation adjustments:
Net gain (loss) on currency translation	$	3	$	—	$	3	$	97	$	16	$	113
Reclassification to earnings	—		—		—		—		—		—
Other comprehensive income (loss), net	3		—		3		97		16		113
Cash flow hedge adjustments:
Net gain (loss) on hedging instruments	17		(4)		13		(73)		17		(56)
Reclassification to earnings1	(16)		4		(12)		(21)		5		(16)
Other comprehensive income (loss), net	1		—		1		(94)		22		(72)
Postretirement benefits adjustments:
Net actuarial gain (loss) and prior service cost	—		—		—		—		—		—
Reclassification to earnings2	13		(3)		10		23		(6)		17
Other comprehensive income (loss), net	13		(3)		10		23		(6)		17
Total other comprehensive income (loss), net	$	17	$	(3)	$	14	$	26	$	32	$	58

1Pre-tax amount for each period is classified as sales in the accompanying condensed consolidated statements of operations.

2For the nine months ended January 31, 2021, $4 of the pre-tax amount of $23 is classified in gain on sale of business in the accompanying condensed consolidated statements of operations. Otherwise, the pre-tax amount for each period is classified as non-operating postretirement expense.