INCOME TAXES (Details - Accounting For Uncertainty in Income Taxes) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Rollforward of the beginning and ending balances of the total amounts of gross unrecognized tax benefits
Gross unrecognized tax benefits, beginning of year	$ 4,707	$ 4,530	$ 4,331
Increases in tax positions for prior years	14	210	235
Decreases in tax positions for prior years	(6)	(33)	(39)
Increases in tax positions for current year	0	0	3
Lapse in statute of limitations	0	0	0
Settlements	(6)	0	0
Activity of discontinued operations	0	0	0
Gross unrecognized tax benefits, end of year	4,709	4,707	4,530
Unrecognized tax benefits, if recognized would not affect the effective tax rate	38	28	66
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate	4,700	4,700	4,400
Unrecognized tax benefits, interest and penalties accrued	2,200	2,000	1,200
Unrecognized tax benefits, interest net of the federal benefit (expense) and penalties	(190)	$ (776)	$ (26)
Decrease in Unrecognized Tax Benefits is Reasonably Possible in the next twelve months	$ 3,900