GENERAL (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Supplementary cash flows information:
Interest paid (net of interest capitalized) (a)	[1]			$ 110	$ 95
Income taxes paid				0	21
Interest paid associated with the ROE complaints				9
Supplementary non-cash investing and financing activities:
Additions to property, plant and equipment and other long-lived assets	[2]			93	100
Allowance for equity funds used during construction		$ 8	$ 8	$ 16	$ 16

[1] Amount for the six months ended June 30, 2017 includes $9 million of interest paid associated with the return on equity (“ROE”) complaints. See Note 12 to the condensed consolidated interim financial statements for information on the ROE complaints.

[2] Amounts consist of accrued liabilities for construction, labor, materials and other costs that have not been included in investing activities. These amounts have not been paid for as of June 30, 2017 or 2016, respectively, but will be or have been included as a cash outflow from investing activities when paid.