INCOME TAXES - General Textual Disclosures (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes
Net long-term deferred tax assets	$ 48	$ 68	$ 48	$ 68
Tax Cuts and Jobs Act of 2017, deferred tax liability, income tax (expense) benefit			20
Tax Cuts and Jobs Act of 2017, deferred tax asset, income tax expense (benefit)			$ 3
U.S. Federal statutory tax rate-expense (as a percent)			35.00%	35.00%	35.00%
Loss on disposal			$ 13	$ 0	$ 0
Income tax benefit			(305)	(296)	(293)
Valuation allowance	47	45	47	45
Income tax effect from share-based compensation, net					53
Deferred tax asset related to net operating loss and tax credit carryforwards			61	60
Deferred tax assets related to net operating loss and tax credit carryforwards expiring between 2020 and 2032 for 2012 and between 2020 and 2033 for 2013			33	35
Deferred tax assets related to net operating loss and tax credit carryforwards with unlimited expiration period			28	25
Income taxes paid			258	190	107
State
Income Taxes
Tax benefit, reversal of accrual for uncertain tax positions, expiration of statutes of limitations and settlements on audits			5	8	5
Non-cash charge to deferred income tax (benefit) expense due to change in deferred tax assets valuation allowance			(1)	5	(1)
Foreign
Income Taxes
Non-cash charge to deferred income tax (benefit) expense due to change in deferred tax assets valuation allowance				6	12
Income tax benefit					(19)
Federal
Income Taxes
Disproportionate Tax Effect in OCI				14
Income tax benefit		13
TopBuild
Income Taxes
Valuation allowance					$ 21
Other non-current assets
Income Taxes
Net long-term deferred tax assets	48	68	48	68
Other non-current liabilities
Income Taxes
Net long-term deferred tax liabilities	26	$ 20	$ 26	$ 20
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Moores Furniture
Income Taxes
Loss on disposal	$ 64