STOCK-BASED COMPENSATION PLANS - Schedule of Stock Option Activity (Details) shares in Millions	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Number of Shares (in millions)
Beginning option balance (shares) | shares	0.1
Options exercised (in shares) | shares	0.0
Options forfeited (in shares) | shares	(0.1)
Ending option balance (shares) | shares	0.0
Weighted Average Exercise Price (per share)
Beginning balance (in dollars per share) | $ / shares	$ 37.75
Options exercised (in dollars per share) | $ / shares	0
Options forfeited (in dollars per share) | $ / shares	37.75
Ending balance (in dollars per share) | $ / shares	$ 0