EARNINGS PER SHARE (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net income attributable to common shareowners	$ 261	$ 784	$ 357	$ 1,184
Basic weighted-average number of shares outstanding	866.2	866.2	866.2	866.2
Stock awards and equity units (share equivalent)	4.7	0.0	4.7	0.0
Diluted weighted-average number of shares outstanding	870.9	866.2	870.9	866.2
Basic (in dollars per share)	$ 0.30	$ 0.91	$ 0.41	$ 1.37
Diluted (in dollars per share)	$ 0.30	$ 0.91	$ 0.41	$ 1.37