Fair Value of Financial Instruments (Tables)

9 Months Ended

Jan. 31, 2015

Fair Value of Financial Instruments [Abstract]

Comparison of the fair values and carrying amounts of financial instrument

The fair value of cash, cash equivalents, and short-term borrowings approximate the carrying amounts due to the short maturities of these instruments. We determine the fair value of derivative financial instruments and long-term debt as discussed in Note 7. 

Below is a comparison of the fair values and carrying amounts of these instruments:

	April 30, 2014				January 31, 2015
	Carrying		Fair		Carrying		Fair
(Dollars in millions)	Amount		Value		Amount		Value
Assets:
Cash and cash equivalents	$	437	$	437	$	250	$	250
Currency derivatives	7		7		137		137
Liabilities:
Currency derivatives	7		7		4		4
Short-term borrowings	8		8		8		8
Current portion of long-term debt	—		—		250		255
Long-term debt	997		963		748		754