RETIREMENT PLANS Narrative (Details)	3 Months Ended	9 Months Ended
	Dec. 31, 2018 USD ($) employees	Sep. 30, 2018 USD ($)	Sep. 30, 2017 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Age to participate in the pension plan		21
Years of eligibility to participate in pension plan		1
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Contributions by Employer		$ 0	$ 1,250,000,000
Non Qualified
Defined Benefit Plan Disclosure [Line Items]
Benefits paid		$ 24,000,000
Subsequent Event [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Assets Transferred to (from) Plan	$ 1,600,000,000
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	$ 425,000,000
Former Employees | employees	23,000
Monthly Benefit Payments	$ 1,000