INCOME TAXES (Details - EFFECTIVE TAX RATE) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Income (loss) from continuing operations before income tax expense (benefit)
Income (loss) from continuing operations before income tax expense (benefit)	$ (1,527)	$ (2,803)	$ 952	$ 591
U.S.:
Income tax expense (benefit)	(307)	(1,091)	291	(18)
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 (loss) from continuing operations before income tax expense (benefit)	(1,527)	(2,803)	952	591
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 (benefit)	(307)	$ (1,091)	291	$ (18)
Adjustments:
Reclassifications from accumulated other comprehensive income			248
Impact of Tax Act					$ 6,700
Valuation allowance
Increase (Decrease) in certain other valuation allowances associated with foreign jurisdictions	$ 5		$ 42
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%	35.00%	21.00%	35.00%
Adjustments:
Amounts attributable to continuing operations (as a percent)	20.10%	38.90%	30.60%	0.00%
Accounting for Uncertainty in Income Taxes
Unrecognized tax benefits, excluding interest and penalties	$ 4,700		$ 4,700		4,700
Unrecognized tax benefits, if recognized would not affect the effective tax rate	45		45		28
Unrecognized tax benefits, if recognized would favorably affect the effective tax rate	4,700		4,700		4,700
Unrecognized tax benefits, interest and penalties accrued	2,200		2,200		$ 2,000
Unrecognized tax benefits, interest net of the federal benefit (expense) and penalties			(148)	$ (102)
Decrease in Unrecognized Tax Benefits is Reasonably Possible in the next twelve months	$ 3,900		$ 3,900