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INVENTORIES (Tables)
 9 Months Ended
Feb. 28, 2017
Inventory Net [Abstract]  
Inventories

 

(in millions)

 

February 28,

2017

 

 

May 31,

2016

 

Raw materials

 

$

244

 

 

$

95

 

Work-in-process

 

 

46

 

 

 

31

 

Finished goods

 

 

101

 

 

 

86

 

Total

 

$

391

 

 

$

212