Fair Value Measurements (Tables)

3 Months Ended

Jul. 31, 2022

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table summarizes the assets and liabilities measured or disclosed at fair value on a recurring basis:

	April 30, 2022				July 31, 2022
	Carrying		Fair		Carrying		Fair
(Dollars in millions)	Amount		Value		Amount		Value
Assets
Cash and cash equivalents	$	868	$	868	$	899	$	899
Currency derivatives, net	48		48		57		57
Liabilities
Currency derivatives, net	1		1		—		—
Long-term debt (including current portion)	2,269		2,239		2,248		2,221