RETIREMENT PLANS Narrative (Details)	3 Months Ended				9 Months Ended
	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Age to participate in the pension plan					21
Years of eligibility to participate in pension plan					1
Defined Benefit Plan, Plan Assets, Payment for Settlement			$ 8,000,000	$ 1,200,000,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate			3.60%	3.80%		3.60%	4.40%
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement			$ (3,000,000)	$ (439,000,000)		$ 439,000,000
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement		$ 0	$ (3,000,000)		$ 0	(442,000,000)
Defined Benefit Plan, Plan Assets, Contributions by Employer					1,250,000,000	$ 750,000,000
Non Qualified
Defined Benefit Plan Disclosure [Line Items]
Benefits paid					$ 34,000,000
Subsequent Event [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	$ 400,000,000
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan	$ 1,300,000,000
Increase (Decrease) in Employee Related Liabilities	45,000
Monthly Benefit Payments	$ 450