FINANCIAL INSTRUMENTS (Fair Value and Gross Unrealized Losses of the Company's Investments) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Temporarily Impaired Securities, Less than 12 Months, Fair Value		$ 592	$ 623
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months		22	69
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		179	12
Available-for-sale Securities, Continuous Unrealized Loss Position, More than 12 Months		45	6
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		771	635
Available-for-sale Securities, Continuous Unrealized Position		67	75
Other than temporary impairment write-downs on investments still held		0	2
Cost method investments, aggregate cost		120	157
Cost method investments, reduction in cost basis due to impairment		0	1
Government Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Temporarily Impaired Securities, Less than 12 Months, Fair Value		351	251
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months		12	7
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		0	1
Available-for-sale Securities, Continuous Unrealized Loss Position, More than 12 Months		0	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		351	252
Available-for-sale Securities, Continuous Unrealized Position		12	7
Corporate Bonds - Investment Grade [Member]
Schedule of Available-for-sale Securities [Line Items]
Temporarily Impaired Securities, Less than 12 Months, Fair Value		193	175
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months		4	8
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		16	1
Available-for-sale Securities, Continuous Unrealized Loss Position, More than 12 Months		1	0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		209	176
Available-for-sale Securities, Continuous Unrealized Position		5	8
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Temporarily Impaired Securities, Less than 12 Months, Fair Value		48	197
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months		6	54
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value		163	10
Available-for-sale Securities, Continuous Unrealized Loss Position, More than 12 Months		44	6
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value		211	207
Available-for-sale Securities, Continuous Unrealized Position		50	60
Impairment of Long-Lived Assets, Other Investments and Other Assets [Member] | Corporate Segment [Member] | Write Down of Certain Venture Capital Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Other Asset Impairment Charges	$ 55	$ 4	$ 55