STOCK-BASED COMPENSATION PLANS - Summary of SAR Activity (Details) - SARs	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Stock Grants and SARs
Outstanding at the beginning of the year (in shares) | shares	3,060,000
Granted (in shares) | shares	500,000
Exercised (in shares) | shares	(1,479,968)
Outstanding at the end of the year (in shares) | shares	2,080,032
Weighted-Average Price
Outstanding at the beginning of the year (in dollars per share) | $ / shares	$ 24.29
Granted (in dollars per share) | $ / shares	32.81
Exercised (in dollars per share) | $ / shares	33.00
Outstanding at the end of the year (in dollars per share) | $ / shares	$ 20.14