Fair Value Measurements (Tables)

9 Months Ended

Jan. 31, 2014

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 at fair value on a recurring basis:

(Dollars in millions)	Level 1		Level 2		Level 3		Total
April 30, 2013:
Assets:
Currency derivatives	$	—	$	5	$	—	$	5
Liabilities:
Currency derivatives	—		4		—		4
Short-term borrowings	—		3		—		3
Current portion of long-term debt	—		2		—		2
Long-term debt	—		1,011		—		1,011
January 31, 2014:
Assets:
Currency derivatives	—		11		—		11
Liabilities:
Currency derivatives	—		2		—		2
Short-term borrowings	—		9		—		9
Long-term debt	—		952		—		952