INCOME TAXES (Details - EFFECTIVE TAX RATE) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Income (loss) from continuing operations before income tax expense (benefit)
Income from continuing operations before income tax expense	$ 1,154	$ 1,227
U.S.:
Income tax expense	217	277
Reconciliation between actual income tax (benefit) expense and statutory U.S. federal amount computed by applying the federal income tax rate, pre-tax income (loss)
Income from continuing operations before income tax expense	1,154	1,227
Reconciliation between actual income tax (benefit) expense and statutory U.S. federal amount computed by applying the federal income tax rate, tax expense/benefit
Income tax expense	217	$ 277
Valuation allowance
Increase (Decrease) in certain other valuation allowances associated with foreign jurisdictions	$ (38)
Reconciliation between actual income tax (benefit) expense and statutory U.S. federal amount computed by applying the federal income tax rate, percentage of pre-tax income (loss)
U.S. federal income tax at statutory rate (as a percent)	21.00%	21.00%
Adjustments:
Amounts attributable to continuing operations (as a percent)	18.80%	22.60%
Accounting for Uncertainty in Income Taxes
Unrecognized tax benefits, excluding interest and penalties	$ 4,700		$ 4,700
Unrecognized tax benefits, if recognized would not affect the effective tax rate	45		38
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate	4,700		4,700
Unrecognized tax benefits, interest and penalties accrued	2,300		$ 2,200
Unrecognized tax benefits, interest net of the federal benefit (expense) and penalties	(58)	$ (54)
Decrease in Unrecognized Tax Benefits is Reasonably Possible in the next twelve months	$ 3,900