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Goodwill and Other Intangible Assets
9 Months Ended
Jan. 31, 2018
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 nine months ended January 31, 2018:
(Dollars in millions)
Goodwill
 
Other Intangible Assets
Balance at April 30, 2017
$
753

 
$
641

Foreign currency translation adjustment
15

 
39

Balance at January 31, 2018
$
768

 
$
680



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