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EQUITY AND NONCONTROLLING INTEREST - EQUITY AND NONCONTROLLING INTEREST NARRATIVE (Details)
$ / shares in Units, $ in Thousands
12 Months Ended
Feb. 14, 2022
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
vote
$ / shares
shares
Dec. 31, 2020
shares
Dec. 31, 2019
USD ($)
shares
May 31, 2021
USD ($)
Jan. 19, 2021
Jul. 24, 2018
USD ($)
Class of Stock [Line Items]              
Common and preferred shares authorized (shares)   1,055,000,000          
Preferred stock, shares authorized (shares)   5,000,000          
Preferred stock, par (USD per share) | $ / shares   $ 1          
Dividends, common stock, cash, additional percentage over Class B common stock dividends   10.00%          
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $   $ 109,983          
Retirement of treasury common stock | $       $ 0      
Common stock, shares, outstanding (shares)   206,109,014 208,227,127 208,829,433      
2018 Share Repurchase Program              
Class of Stock [Line Items]              
Stock Repurchase Program, Authorized Amount | $             $ 500,000
2021 Share Repurchase Program              
Class of Stock [Line Items]              
Stock Repurchase Program, Authorized Amount | $         $ 500,000    
Treasury Common Stock              
Class of Stock [Line Items]              
Retirement of treasury common stock | $       $ 6,423,267      
Retained Earnings              
Class of Stock [Line Items]              
Retirement of treasury common stock | $       $ (6,284,919)      
Noncontrolling Interests in Subsidiaries | Lotte Shanghai Food Company              
Class of Stock [Line Items]              
Noncontrolling interest, ownership percentage by parent           50.00%  
Common stock              
Class of Stock [Line Items]              
Common stock, shares authorized (shares)   900,000,000          
Common stock, par (USD per share) | $ / shares   $ 1          
Common stock, voting rights (vote) | vote   1          
Retirement of treasury common stock (shares)   0 0 138,348,719      
Shares repurchased (shares)   871,144 951,138 1,386,193      
Common Stock Voting Rights, Board Election Percentage   16.66%          
Common stock | Hershey Trust Company              
Class of Stock [Line Items]              
Common stock, shares, outstanding (shares)   95,400          
Class B common stock              
Class of Stock [Line Items]              
Common stock, shares authorized (shares)   150,000,000          
Common stock, voting rights (vote) | vote   10          
Conversion of stock   0 0 0      
Class B common stock | Hershey Trust Company              
Class of Stock [Line Items]              
Common stock, shares, outstanding (shares)   60,612,012          
Common stock, voting percentage   81.00%          
Hershey Trust Company | Subsequent Event              
Class of Stock [Line Items]              
Shares repurchased (shares) 1,000,000            
Treasury stock acquired, average cost per share (USD per share) | $ / shares $ 203.35            
Stock repurchased during period, value | $ $ 203,350