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EARNINGS PER SHARE (Narrative) (Details) - shares
12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Stock options    
Earnings per share [line items]    
Shares excluded from calculation of earnings per share (in shares) 1,462,933 1,903,101
Treasury RSUs    
Earnings per share [line items]    
Shares excluded from calculation of earnings per share (in shares) 0 0