DISPOSITIONS AND ACQUISITIONS (Net Income (Loss) from Discontinued Operations) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (loss) gain on disposal									$ (15)	$ 57	$ (198)
Net (loss) income from discontinued operations	$ 4	$ (4)	$ (4)	$ (11)	$ 16	$ 3	$ 9	$ 38	(15)	66	(193)
Eliminations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (loss) income from discontinued operations									0	0	(39)
TF Holdings Limited | Disposed of by Sale, Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues									0	13	959
Production and delivery costs									0	0	833
Depreciation, depletion and amortization									0	0	80
Interest expense allocated from parent									0	0	39
Other costs and expenses, net									0	0	10
Income (loss) before income taxes and net (loss) gain on disposal									0	13	(3)
Net (loss) gain on disposal									(15)	57	(198)
Net (loss) income before income taxes									(15)	70	(201)
(Provision for) benefit from income taxes									0	(4)	8
Net (loss) income from discontinued operations									(15)	66	(193)
Chainge in fair value of contingent consideration									$ (17)	61	13
Provision for loss (gain)											33
TF Holdings Limited | Disposed of by Sale, Discontinued Operations | Eliminations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues										$ (13)	$ 157