Derivative Financial Instruments (Tables)

12 Months Ended

Apr. 30, 2015

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 had on AOCI and earnings in 2014 and 2015:

	Classification in Statement of Operations	2014			2015
Currency derivatives designated as cash flow hedges:
Net gain (loss) recognized in AOCI	n/a	$	(7	)	$	96
Net gain (loss) reclassified from AOCI into earnings	Net sales	—			41
Derivatives not designated as hedging instruments:
Currency derivatives – net gain (loss) recognized in earnings	Net sales	1			26
Currency derivatives – net gain (loss) recognized in earnings	Other income	10			4

Schedule of fair values of derivative instruments

The following table presents the fair values of our derivative instruments as of April 30, 2014 and 2015.

	Balance Sheet Classification	Fair Value of Derivatives in a Gain Position		Fair Value of Derivatives in a Loss Position
April 30, 2014:
Designated as cash flow hedges:
Currency derivatives	Other current assets	$	6	$	(6	)
Currency derivatives	Other assets	2		—
Currency derivatives	Accrued expenses	2		(6		)
Currency derivatives	Other liabilities	—		(4		)
Not designated as hedges:
Currency derivatives	Other current assets	5		—
Currency derivatives	Accrued expenses	1		—
April 30, 2015:
Designated as cash flow hedges:
Currency derivatives	Other current assets	42		(2		)
Currency derivatives	Other assets	20		(3		)
Currency derivatives	Accrued expenses	—		(6		)
Currency derivatives	Other liabilities	—		(6		)
Not designated as hedges:
Currency derivatives	Other current assets	3		(1		)
Currency derivatives	Accrued expenses	1		(7		)

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, 2014:
Derivative assets	$	17		$	(10	)	$	7		$	(2	)	$	5
Derivative liabilities	(17		)	10			(7		)	2			(5		)
April 30, 2015:
Derivative assets	65			(6		)	59			—			59
Derivative liabilities	(24		)	6			(18		)	—			(18		)