BUSINESS SEGMENTS INFORMATION (Long Lived Assets by Geographic Area) (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	$ 26,213	$ 26,574	$ 38,795
Assets held for sale			4,400
Indonesia
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	8,938	8,794	7,701
U.S.
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	8,312	8,282	16,569
Peru
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	7,485	7,981	8,432
Chile
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	1,221	1,269	1,387
Other
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	$ 257	$ 248	$ 4,706