INCOME TAXES (Schedule of Deferred Tax Balances) (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2017	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	$ 97
Deferred Tax Assets, Property, Plant and Equipment		$ 0	$ 0
Deferred Tax Assets, Operating Loss and Tax Credit Carryforwards		42	47
Postretirement benefit obligations, Deferred Tax Assets		234	251
Other accruals and reserves, Deferred Tax Assets		326	349
Inventory, Deferred Tax Assets		8	8
Other - net, deferred tax assets		11	9
Subtotal, deferred tax assets		(621)	(664)
Valuation allowances, deferred tax assets		(19)	(19)
Total, deferred tax assets		602	645
Property, Deferred Tax Liabilities		129	132
Tax loss and credit carryforwards, Deferred Tax Liabilities,		0	0
Postretirement benefit obligations, Deferred Tax Liabilities		0	0
Other accruals and reserves, Deferred Tax Liabilities		8	1
Inventory, deferred tax liabilities		0	0
Other - net, deferred tax liabilities		2	1
Total, deferred tax liabilities		139	134
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries		$ 35	$ 9