TAXES ON INCOME Taxes on Income - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014
Other postretirement benefits	$ 5				$ 5
Debt amortization	57				41
Other	32				27
Total deferred income tax assets	94				73
Deferred Tax Assets, Valuation Allowance	(2)				(2)
Deferred Tax Assets, Net	92				71
Property, plant and equipment	(796)				(794)
Deferred Tax Liabilities, Investment in Noncontrolled Affiliates	(20)				810
Other	(1)				6
Deferred Tax Liabilities, Gross	817				1,610
Deferred Tax Liabilities, Net	725				1,539
Deferred Tax Liabilities, Net, Noncurrent	$ 725	$ 779	$ 1,534	$ 1,542	$ 1,539	$ 1,458	$ 1,467	$ 1,467