EQUITY - Summary of Changes In Equity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)			43.9
Beginning balance	$ 331	$ 2,099	$ 182	$ 2,112
Stock-based employee compensation	6		8
Dividends	(5)		(5)
Net transfers from Parent		(74)		8
Comprehensive income (loss)	$ (80)	259	$ 67	164
Ending balance (in shares)	44.1		44.1
Ending balance	$ 252	2,284	$ 252	2,284
Dividends per share (in dollars per share)	$ 0.1125		$ 0.1125
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	44.0		44.0
Beginning balance	$ 44		$ 44
Ending balance (in shares)	44.0		44.0
Ending balance	$ 44		$ 44
Paid-In Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	8		4
Stock-based employee compensation	6		10
Ending balance	14		14
Retained Earnings
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	1,961		1,935
Dividends	(5)		(5)
Comprehensive income (loss)	(59)		(33)
Ending balance	1,897		1,897
Parent Company Investment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance		3,736		3,592
Net transfers from Parent		(74)		8
Comprehensive income (loss)		115		177
Ending balance		3,777		3,777
Accumulated  Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,680)	(1,637)	(1,801)	(1,480)
Stock-based employee compensation	0		0
Net transfers from Parent		0		0
Comprehensive income (loss)	(21)	144	100	(13)
Ending balance	(1,701)	$ (1,493)	(1,701)	$ (1,493)
Common Stock Held In Treasury, At Cost
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(2)		0
Stock-based employee compensation	0		(2)
Ending balance	$ (2)		$ (2)