BUSINESS SEGMENTS INFORMATION (Long Lived Assets by Geographic Area) (Details) - USD ($) $ in Millions	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	$ 26,574	$ 38,795	$ 49,412
Assets held for sale	0	4,386	4,300
U.S.
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	8,282	16,569	29,468
Indonesia
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	8,794	7,701	6,961
Peru
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	7,981	8,432	6,848
Chile
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	1,269	1,387	1,542
Other
Long Lived assets by geographic area of customer [Line Items]
Long-lived assets	$ 248	$ 4,706	$ 4,593