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ACCELERATED SHARE REPURCHASE Narrative (Details) - April 2018 Stock Repurchase Program - USD ($)
$ / shares in Units, shares in Millions
1 Months Ended
Apr. 30, 2018
Jun. 30, 2018
Class of Stock [Line Items]    
Authorized repurcahse amount $ 400,000,000  
Initial delivery of treasury stock (in shares) 2.5  
Average cost per share of shares acquired (in dollars per share) $ 127.36  
Value of shares repurchased as percentage of contract 80.00%  
Outstanding amount of contract (in shares)   0.3