Fair Value Measurements (Tables)

9 Months Ended

Jan. 31, 2016

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:

(Dollars in millions)	Level 1		Level 2		Level 3		Total
April 30, 2015:
Assets:
Currency derivatives	$	—	$	59	$	—	$	59
Liabilities:
Currency derivatives	—		18		—		18
Short-term borrowings	—		190		—		190
Current portion of long-term debt	—		253		—		253
Long-term debt	—		735		—		735
January 31, 2016:
Assets:
Currency derivatives	—		77		—		77
Liabilities:
Currency derivatives	—		1		—		1
Short-term borrowings	—		509		—		509
Long-term debt	—		1,256		—		1,256