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CAPITAL STOCK - Schedule of Common Stock (Details) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Equity [Abstract]    
Common Stock, shares authorized (in shares) 2,914,850,000 2,914,850,000
Common Stock, shares issued (in shares) 1,398,240,618 1,430,106,199
Common Stock, shares outstanding (in shares) 1,398,240,618 1,430,106,199
Common Stock, par value (in dollars per share) $ 0.01 $ 0.01