VARIABLE INTEREST ENTITIES (Schedule of Consolidated Variable Interest Entities, Carrying Amounts of Assets and Liabilities) (Details) - Variable Interest Entity, Primary Beneficiary [Member] - USD ($) $ in Millions		Sep. 30, 2017	Dec. 31, 2016
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Pledged	[1]	$ 1,191	$ 1,186
Variable Interest Entity, Consolidated, Carrying Amount, Liabilities	[2]	608	663
Cash and cash equivalents
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Pledged		115	75
Variable Interest Entity, Consolidated, Assets, Current, Pledged		115	75
Other current assets
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Current, Pledged		100	95
Net property
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Noncurrent, Pledged		925	961
Other noncurrent assets
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Noncurrent, Pledged		51	55
Current liabilities
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Current		255	286
Current liabilities | Variable Interest Entities Used to Monetize Accounts Receivable [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Current		4	1
Variable Interest Entity, Consolidated, Liabilities, Current, No Recourse		0	0
Long-term debt
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Noncurrent		310	330
Other noncurrent obligations
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Liabilities, Noncurrent		43	47
Current Assets [Member] | Variable Interest Entities Used to Monetize Accounts Receivable [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Assets, Current		638	477
Variable Interest Entity, Consolidated, Assets, Current, Pledged		$ 0	$ 0

[1] All assets were restricted at September 30, 2017 and December 31, 2016.

[2] All liabilities were nonrecourse at September 30, 2017 and December 31, 2016.