TAXES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Loss Carry Forward Valuation Reserve
Beginning of year balance	$ 441	$ 394	$ 312
Charged to income	55	47	82
Charged to other accounts	0	0	0
Write-offs	0	0	0
End of year balance	$ 496	$ 441	$ 394