Derivative Financial Instruments and Hedging Activities (Tables)

12 Months Ended

Apr. 30, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of fair values of derivative instruments affecting statements of operations

The following table presents the pre-tax impact that changes in the fair value of our derivative instruments and non-derivative hedging instruments had on AOCI and earnings during each of the last three years:

	Classification in Statement of Operations	2019		2020		2021
Currency derivatives designated as cash flow hedges:
Net gain (loss) recognized in AOCI	n/a	$	69	$	61	$	(78)
Net gain (loss) reclassified from AOCI into earnings	Sales	6		23		21
Currency derivatives not designated as hedging instruments:
Net gain (loss) recognized in earnings	Sales	6		4		(13)
Net gain (loss) recognized in earnings	Other income (expense), net	6		(14)		17
Foreign currency-denominated debt designated as net investment hedge:
Net gain (loss) recognized in AOCI	n/a	45		22		(73)
Total amounts presented in the accompanying consolidated statements of operations for line items affected by the net gains (losses) shown above:
Sales		4,276		4,306		4,526
Other income (expense), net		15		(11)		15

Schedule of fair values of derivative instruments

The following table presents the fair values of our derivative instruments as of April 30, 2020 and 2021:

	Balance Sheet Classification	Derivative Assets		Derivative Liabilities
April 30, 2020
Designated as cash flow hedges:
Currency derivatives	Other current assets	$	49	$	(1)
Currency derivatives	Other assets	30		—
Currency derivatives	Accrued expenses	—		—
Currency derivatives	Other liabilities	—		—
Not designated as hedges:
Currency derivatives	Accrued expenses	—		(2)
April 30, 2021
Designated as cash flow hedges:
Currency derivatives	Other current assets	4		(2)
Currency derivatives	Other assets	—		—
Currency derivatives	Accrued expenses	4		(18)
Currency derivatives	Other liabilities	1		(18)
Not designated as hedges:
Currency derivatives	Other current assets	1		—

Offsetting Assets and Liabilities [Table Text Block]

The following table summarizes the gross and net amounts of our derivative contracts:

	Gross Amounts of Recognized Assets (Liabilities)		Gross Amounts Offset in Balance Sheet		Net Amounts Presented in Balance Sheet		Gross Amounts Not Offset in Balance Sheet		Net Amounts
April 30, 2020
Derivative assets	$	79	$	(1)	$	78	$	—	$	78
Derivative liabilities	(3)		1		(2)		—		(2)
April 30, 2021
Derivative assets	10		(7)		3		(1)		2
Derivative liabilities	(38)		7		(31)		1		(30)