GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Definite-lived Intangible Assets
Other indefinite-lived intangible assets		$ 76,000,000	$ 86,000,000
Increase in other indefinite-lived intangible assets			59,000,000
Goodwill, impairment loss		0	0	$ 0
Impairment of intangible assets, indefinite-lived (excluding goodwill)		0	0	0
Carrying value of definite-lived intangible assets		183,000,000	202,000,000
Accumulated amortization		48,000,000	26,000,000
Amortization expense related to the definite-lived intangible assets		23,000,000	20,000,000	$ 4,000,000
Increase in definite-lived intangible assets			$ 181,000,000
Amortization expense related to the definite-lived intangible assets, 2019		24,000,000
Amortization expense related to the definite-lived intangible assets, 2020		16,000,000
Amortization expense related to the definite-lived intangible assets, 2021		12,000,000
Amortization expense related to the definite-lived intangible assets, 2022		11,000,000
Amortization expense related to the definite-lived intangible assets, 2023		$ 11,000,000
Weighted average
Definite-lived Intangible Assets
Weighted average amortization period		17 years	16 years
Decorative Architectural Products [Member]
Definite-lived Intangible Assets
Impairment of intangible assets, indefinite-lived (excluding goodwill)	$ 9,000,000