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Goodwill and Other Intangible Assets
6 Months Ended
Oct. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Intangible Assets Disclosure [Text Block]
Goodwill and Other Intangible Assets
The following table summarizes the changes in goodwill and other intangible assets during the six months ended October 31, 2017:
(Dollars in millions)
Goodwill
 
Other Intangible Assets
Balance at April 30, 2017
$
753

 
$
641

Foreign currency translation adjustment
3

 
18

Balance at October 31, 2017
$
756

 
$
659



Our other intangible assets consist of trademarks and brand names, all with indefinite useful lives.